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product structure silicon monolithic integrated circuit this product has no designed protection against radioactive ra ys 1/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. tsz22111 ? 14 ? 001 www.rohm.com 16.dec.2015 rev.001 6ch electronic volume for 5.1ch car theater BD3433K general description BD3433K is a 6ch electronic volume device for 5.1ch car theater. it incorporates various functions such as 6ch input selector (front/rear independently-controlled), input gain amp (front/rear independently-controlled), 6ch independently-controlled electronic volume (capable of soft switching), 6ch output gain amp (2-line outputs), differential input for monophonic signals, electronic volume for monophonic signals (capable of soft switching), and mixing circuit for monophonic signals. it also provides high performance functions to achieve low distortion, low noise and a high voltage output of 5.6vrms. qfp44 package which offers savings in space and components is used to be suited for applications such as car audio and car navigation. features ? high output voltage of 5.6vrms is achievable provided with 2 lines of outputs to the built-in power amp and the pre- out . ? reduces volume switching noise by installing the advanced 6ch independently-controlled electronic volume with soft switching. ? high performance capabilities such as low distortion rate (0.001%), low noise (3vrms) ? different signals from different sources can be outputted to the front and rear sections independently and this provides an option of rear-seat entertainment. ? incorporates monophonic differential input circuit suited for inputting navigation voice and telephone speech. these monophonic voices can be mixed with the front output signals. ? energy-saving design resulting in low current consumption, by utilizing the bi-cmos process. it has the advantage in quality over scaling down the power heat control of the internal regulators. ? 3-wire serial interface supported for both of 3.3v and 5v microcomputers. applications for car audio equipment, car navigation equipment, and hybrid systems. key specifications ? vcc power supply voltage range: 7.0v to 9.5v ? vee power supply voltage range: -9.5v to -7.0v ? total harmonic distortion: 0.001%(typ) ? maximum input voltage: 4.25vrms(typ) ? cross-talk between channels: 106db(typ) ? output noise voltage: 2.5vrms(typ) ? residual output noise voltage: 2vrms(typ) ? vco oscillation frequency: 400khz(typ) ? operating temperature range: -40c to +85c package w(typ) x d(typ) x h(max) qfp44 14.00mm x 14.00mm x 2.25mm datashee t datashee t downloaded from: http:///
BD3433K 2/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 typical application circu it 1 1 1 1 1 1 1 1 1 1 4.7 4.7 4.7 1 1 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 39k 4.7 47 0.1 (schottky di) inafl inafr agnd1 inac inasw agnd2 inarl inarr agnd3 inbfl agnde outbrr outbrl outbsw outbc outbfr outbfl outafr outac outasw outarl outarr dgnd sda sck cs test adj vee agndm vcc inex+ inex- outafl soutrr soutrl agnd6 inbrr agnd5 inbsw inbc agnd4 inbfr inbrl 2 3 4 5 6 7 8 9 10 11 1 30 29 28 27 26 25 23 24 34 35 36 37 38 39 40 22 21 20 19 18 17 16 15 14 13 12 33 32 31 41 42 43 44 1 1 0.1 47 pin configuration 22 outafl 21 soutrr 20 soutrl 19 agnd6 18 inbrr 17 inbrl 16 agnd5 15 inbsw 14 inbc 13 agnd4 12 inbfr 1 agnde 11 inbfl 2 inafl 3 inafr 4 agnd1 5 inac 6 inasw 7 agnd2 8 inarl 9 inarr 10 agnd3 33 outbrr 23 outafr 32outbrl 31 outbsw 30 outbc 29 outbfr 28 outbfl 27 outarr 26 outarl 25 outasw 24 outac dgnd 34 sda 35 sck 36 cs 37 test 38 adj 39 vee 40 agndm41 41 vcc 42 inex+ 43 inex- 44 top view downloaded from: http:///
BD3433K 3/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 pin descriptions pin no pin name i/o function pin no pin name i/o function 1 agnde - signal series g nd 23 outafr o signal output a for front r ch 2 inafl i signal input a for front l ch 24 outac o signal output a for center ch 3 inafr i signal input a for front r ch 25 outasw o signal output a for subwoofer ch 4 agnd1 - signal series gnd 26 outarl o signal output a for rear l ch 5 inac i signal input a for centre 27 outarr o signal output a for rear r ch 6 inasw i signal input a for subwoofer 28 outbfl o signal output b for front l ch 7 agnd2 - signal series gnd 29 outbfr o signal output b for front r ch 8 inarl i signal input a for rear l ch 30 outbc o signal output b for center ch 9 inarr i signal input for a rear r ch 31 outbsw o signal output b for subwoofer ch 10 agnd3 - signal series gnd 32 outbrl o signal output b for rear l ch 11 inbfl i signal input b for front l ch 33 outbrr o signal output b for rear r ch 12 inbfr i signal input b for front r ch 34 dgnd - digital series ground 13 agnd4 - signal series gnd 35 sda i micro controller interface (serial data signal input) 14 inbc i signal input b for center 36 sck i micro controller interface (serial clock signal input) 15 inbsw i signal input b for subwoofer 37 cs i micro controller interface (chip select signal input) 16 agnd5 - signal series gnd 38 test o testing terminal 17 inbrl i signal input b for rear l ch 39 adj - vcc oscillating frequency adjustment 18 inbrr i signal input b for rear r ch 40 vee - power (negative voltage) input 19 agnd6 - signal series gnd 41 agndm - analog series gnd 20 soutrl o signal output for rear l ch 42 vcc - power (positive voltage) input 21 soutrr o signal output for rear r ch 43 inex+ i monaural source signal input 22 outafl o signal output a for front l ch 44 inex- i monaural source signal input downloaded from: http:///
BD3433K 4/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 volume + + digital control vco power supply softswitching mixing on/off test cs sck sda dgnd adj vcc agndm vee inex+ inex- inafl inafr inac inasw inarl inarr inbfl inbfr inbc inbsw inbrl inbrr outafl front input gain (0,6,12db) output gain a (0,+2.5db) rear input gain (0,6,12db) 13.5k 13.5k 13.5k 13.5k 100k100k 100k 100k 100k 100k 100k100k 100k 100k 100k 100k rear input seector front input seector volume volume volume volume volume volume soutrr soutrl output gain b (0,-4.5db) outafr outac outasw outarl outarr outbfl outbfr outbc outbsw outbrl outbrr agnd1 agnd agnd agnd agnd agnd agnde block diagram downloaded from: http:///
BD3433K 5/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 absolute maximum ratings (ta=25 ? c) parameter symbol rating unit terminal terminal applied voltage v cc -gnd 10 v (note 1) v ee -gnd - 10 (note 1) v lgc 5.5 control terminal (cs/sck/sda ) (note 1) power dissipation pd 0.85 w (note 2) operating temperature topr -40 to +85 c storage temperature tstg -55 to +125 c (note 1) maximum applied voltage based on gnd. (note 2) derate by 8.5mw/c for ta>25c. mounted on (material: fr4 glass epoxy board (beaten-copper area <3% ), size:70mm x 70mm x 1.6mm) caution: operating the ic over the absolute maximum ratings may damag e the ic. the damage can either be a short circuit between pins or an o pen circuit between pins and the internal circuitry. therefore, it is important to co nsider circuit protection measures, such as adding a fuse, in case the ic is operated over the absolute maximum ratings. recommended operating conditions (ta=25c) parameter symbol terminal min typ max unit conditions power supply voltage v cc v cc -gnd 7.0 9 9.5 v (note 1) v ee v ee -gnd -9.5 -9 -7.0 v (note 1) when it is within operating temperature, basic circuit function is guaranteed within operating voltage. however, setting constan t and element, voltage setting, and temperature setting are required when in operation. other than the conditions stipulated within the rang e, the standard value of electrical characteristics could not be guaranteed, while original function is retaine d. electrical characteristics abbreviations: giaj : setting value of input gain adjustor vol : setting value of volume (1ch to 6ch) vol.ex : setting value of volume for monaural signal goaja : setting value of output gain adjustor a goajb : setting value of output gain adjustor b mix : on/off setting for mixing switch. measurement condition (unless specified otherwise ) : ta =25c, v cc =9v, v ee =-9v, v in =1vrms/1khz, load resistance=10k, load capacitance=10pf, giaj=0db, vol=0db, goaja=0db, goajb=0db, vol.ex=- db, mix=off 1. general characteristics parameter symbol min typ max unit conditions current consumption i cc - 10 17 ma i ee - 17 -9 - vco oscillation frequency f vco - 400 - khz ripple rejection rrc 40 85 - db ripple = 0.1vrms/ 1khz (input terminal ac short) rre 30 70 - db ripple= 0.1vrms/ 1khz (input terminal ac short) reset operation voltage v rs - 3.4 - v initialize all register data by v cc v rs to v cc v rs required time for power on reset t por 20 - - sec minimum required time to reach 3v after vcc voltage on. 2. logic circuit parameter symbol min typ max unit terminal h level input voltage v ih 2.3 - 5.5 v cs, sck, sda l level input voltage v il 0 - 1.0 v cs, sck, sda input clock frequency f sck - - 1.5 mhz sck downloaded from: http:///
BD3433K 6/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 electrical characteristics C continued 3. volume circuit parameter symbol m in t yp m ax unit conditions voltage gain g v -1 0 +1 db bandwidth f w 100 - - khz frequency, which drop -1db towards 1khz slew rate sr - 1.65 - v/ sec maximum input voltage v im 3.8 4.25 - vrms thd+n = 1% , vol = -10db maximum output voltage v om1 3.8 4.25 - vrms thd+n = 1% vol = +10db v om2 5 5.6 - goaja=+2.5db v om3 2.2 2.5 - goajb=-4.5db input impedance r in_v 70 k 100 k 130 k output impedance r o ut - - 50 input gain setting value error e gi -1 0 +1 db output reference is giaj=0db giaj=6 db , 12db, v in =0.1vrms volume setting value error e v1 -1.0 0 +1.0 db vol=0db output standard vol=+23 db to +1 db , -1 db to - 20db (+23 db to +1db at v in =0.1vrms) e v2 -1.5 0 +1.5 vol=- 21 db to - 40db e v3 -2.0 0 +2.0 vol=- 41 db to - 60db e v4 -3.0 0 +3.0 vol=- 61 db to - 79db volume maximum attenuation v mu - - 108 - 85 db vol=- db (mute) , bw=20 hz to 20khz output gain setting value error e goa -1 0 +1 db goaja= goajb=0db output standard goaja=+2.5db e gob -1 0 +1 goajb=-4.5db gain balance between channels cb -1 0 +1 db cross-talk between channels ctc 85 106 - db bw=20 hz to 20khz (input terminal ac short) output noise voltage v no - 2.5 10 vrms bw=a-weight (input terminal ac short) vol=0db residual output noise voltage v nr - 2 10 vol=- db thd+n thd - 0.001 0.05 % bw=20 hz to 20khz, v out =1vrms soft switching transition time t ss 1 - 0.64 - msec /db soft switching : on 0.64 msec/db t ss2 - 1.28 - 1.28 msec/db t ss3 - 2.56 - 2.56 msec/db t ss4 - 5.12 - 5.12 msec/db downloaded from: http:///
BD3433K 7/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 el ectrical characteristics C continued 4. monaural signal circuit common condition unless specified otherwise : vol=- db, giaj=goaja= goajb=0db, vol.ex=0db, mix=on parameter symbol min typ max unit conditions voltage gain g ve -1.0 0 +1.0 db phase inversion between input and output maximum input voltage v ime 3.8 4.25 - vrms thd+n=1%, vol.ex=- 10db input impedance r ine 19 27 35 k volume setting value error e ve1 -1.0 0 +1.0 db vol.ex 0db output standard vol=+15db to +1db, - 1db to -20db, (+15db +1db at v in =0.1vrms) e ve2 -1.5 0 +1.5 vol=-21db to - 40db e ve3 -2.0 0 +2.0 vol=-41db to - 60db e ve4 -3.0 0 +3.0 vol=-61db to - 63db volume maximum attenuation v mue - - 108 - 85 db vol.ex=- db (mute) , bw=20hz to 20khz output noise voltage v noe - 4.5 15 vrms bw =a -weight (input terminal ac short) vol.ex = 0db residual noise voltage v nre - 3.5 10 vol.ex = - db thd+n thde - 0.002 0.05 % bw=20hz to 20khz, v out =1vrms common-mode signal rejection ratio cmrr 40 60 - db bw=20hz to 20khz soft switching transition time t sse1 - 0.64 - msec /db soft switching: on 0.64 msec/db t sse2 - 1.28 - 1.28 msec/db t sse3 - 2.56 - 2.56 msec/db t sse4 - 5.12 - 5.12 msec/db downloaded from: http:///
BD3433K 8/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 application information 1. control signal specification (1) timing chart item sym bol min typ max unit input clock frequency f sck - - 1.5 mhz sck high interval width t whc 200 - - nsec * sck low interval width t wlc 200 - - nsec * cs high interval width t whs 200 - - nsec * cs sck (condition of starting data transmission) set up time t ssc 400 - - nsec * sck cs (condition of starting data transmission) set up time t scs 400 - - nsec * sda sck (condition of starting data receiving) set up time t sdc 80 - - nsec * sck sda (condition of starting data receiving) hold time t hcd 80 - - nsec * (a) when cs is low , micro computer control data (sck/sda) is enabled. (it doesn t work when cs is high ), (b) data (sda) is read at the leading edge of clock (sck). (c) latch reads at the leading edge of cs. (sck has t o be kept as high after d0 acquisition) (d) timing where * mark is not guaranteed by the delivery inspection, but th eoretical values on ic design. cs sck sda t whs t scs t ssc t sdc t whc t wlc t hcd d15 d14 d13 d12 d1 d0 lsb m sb downloaded from: http:///
BD3433K 9/ 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 (2) control data format basic structure table (x ??? dont care bit. either 0 or 1) command no. command name (msb) data transmission description (command + setting data =16 bit) (lsb) command function description d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 0 backup area 0 0 0 0 x x x x x x x x x x x x 1 selector input gain output gain 0 0 0 1 x x output gain b output gain a input sel rear input gain rear x input sel front input gain front 2 backup area 0 0 1 0 x x x x x x x x x x 3 monaural signal 0 0 1 1 mix frch mix flch transition time switching pattern volume gain 4 backup area 0 1 0 0 x x x x x x x x x x x x 5 backup area 0 1 0 1 x x x x x x x x x x x x 6 backup area 0 1 1 0 x x x x x x x x x x x x 7 test sequence 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 8 volume front lch 1 0 0 0 x x transition time switching pattern volume gain 9 volume front rch 1 0 0 1 x x transition time switching pattern volume gain 10 volume center ch 1 0 1 0 x x transition time switching pattern volume gain 11 volume subwoofer ch 1 0 1 1 x x transiti on time switching pattern volume gain 12 volume rear lch 1 1 0 0 x x transition time switching pattern volume gain 13 volume rear rch 1 1 0 1 x x transition time switching pattern volume gain 14 backup area 1 1 1 0 x x x x x x x x x x x x 15 backup area 1 1 1 1 x x x x x x x x x x x x in changing command setting value, enable to select comman d from no.0 to no.15 transmission has to be every 16bit as above format. (3) initial value when power source is on. when power is on, built-in power on reset circuit initializ es setting data to bit 0 (low) within the ic. however, just in case of set design stage, initial data has to be sent to all addresses when turning power on, and mute setting is recommended during this initial data transmission. (4) preventive measure for malfunction by electrostatic surge th e ic s logic circuit has shift registers to retain 16bit serial data which is external input from micon etc. the data, which is retained by shift registers, will be synchroniz ed with cs signal leading edge, then is latched to each function. therefore, if electrostatic surge is applied to the lo gic signal terminal (cs, sck, sda), inappropriate latch may cause malfunction of internal circuit. as a preventiv e measure for malfunction, 0000(hex) data transmission for command no.0 (backup area), at the end of every data transmis sion to specific command to initialize shift register in the ic is recommended. downloaded from: http:///
BD3433K 10 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 (5) com mand no.1 selector, input gain, output gain setting data chart (x ??? either 0 or 1) function setting (msb) transmission data (command + setting data =16bit) (lsb) command setting data d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 command 0 0 0 1 x x - - - - - - x - - - input gain front ch center ch subwoofer ch (initial value) 0 db 0 db +6 db +12 db x x - - - - - - x - 0 0 1 1 0 1 0 1 input selector front ch center ch subwoofer ch (initial value) input a input b x x - - - - - - x 0 1 - - input gain rear ch (initial value) 0 db 0 db +6 db +12 db x x - - - - 0 0 1 1 0 1 0 1 x - - - input selector rear ch (initial value) rear input a rear input b front input a front input b x x - - 0 0 1 1 0 1 0 1 - - x - - - output gain a (initial value) 0 db +2.5 db x x - 0 1 - - - - x - - - output gain b (initial value) 0 db -4.5 db x x 0 1 - - - - - x - - - downloaded from: http:///
BD3433K 11 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 (6) co mmand no.3 monaural signal circuit setting data chart function setting data (msb) transmission data (command + setting data=16bit) (lsb) command setting data d15 d14 d13 d12 d 11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 command 0 0 1 1 - - - - - - - - - - - - volume gain (initial value - db (mute) 0 0 0 0 0 0 0 +15 db 1 1 1 1 1 1 1 0 1 1 1 1 1 1 +14 db +13 db +12 db 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 0 0 1 0 +9 db +8 db +7 db 1 1 1 1 1 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 1 +2 db +1 db 1 1 1 1 0 0 1 1 0 0 1 0 0 1 0 db - - - - - 1 1 0 1 0 0 0 -1 db -2 db 1 1 1 1 0 0 0 0 1 1 1 1 1 0 -7 db -8 db -9 db 1 1 1 1 1 0 0 0 1 0 0 1 0 0 1 0 0 1 1 0 1 -40 db -41 db 1 0 0 1 0 1 0 1 0 1 0 1 0 1 -62 db -63 db 0 0 1 1 0 0 1 1 0 0 1 0 0 1 - db mute else volume switching pattern (initial value) secondary soft switching - - - - 0 1 - - - - - - - volume switching transition time (initial value) 0.64(msec/db) 1.28 (msec/db) 2.56 (msec/db) 5.12 (msec/db) - - 0 0 1 1 0 1 0 1 - - - - - - - - mixing front lch (initial value ) off on - 0 1 - - - - - - - - - - mixing front rch (initial value ) off on 0 1 - - - - - - - - - - - downloaded from: http:///
BD3433K 12 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 (7) co mmand no.8 volume front l ch command no.9 volume front r ch command no.10 volume center ch command no.11 volume subwoofer ch command no.12 volume rear l ch command no.13 volume rear r ch setting data chart ( x ??? either 0 or 1) function setting (msb) transmission data (command + setting data=16bit) (lsb) command setting data d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 command volume fl ch volume fr ch volume c ch volume sw ch volume rl ch volume rr ch 1 1 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 x x - - - - - - - - - x volume gain (initial value) - db (mute) 0 0 0 0 0 0 0 +23 db +22 db +21 db 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 +9 db +8 db +7 db 1 1 1 1 1 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 1 +2 db +1 db 1 1 1 1 0 0 1 1 0 0 1 0 0 1 0 db x x - - - 1 1 0 1 0 0 0 -1 db -2 db 1 1 1 1 0 0 0 0 1 1 1 1 1 0 -7 db -8 db -9 db 1 1 1 1 1 0 0 0 1 0 0 1 0 0 1 0 0 1 1 0 1 -40 db -41 db 1 0 0 1 0 1 0 1 0 1 0 1 0 1 -78 db -79 db 0 0 0 0 1 1 1 1 0 0 1 0 0 1 - db mute else volume switching pattern (initial value) secondary soft switching x x - - 0 1 - - - - - - x volume switching transition time (initial value) 0.64 (msec/db) 1.28 (msec/db) 2.56 (msec/db) 5.12 (msec/db) x x 0 0 1 1 0 1 0 1 - - - - - - - x downloaded from: http:///
BD3433K 13 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 2. ap plication circuit example 1 1 1 1 1 1 1 1 1 1 4.7 4.7 4.7 1 1 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 39k 4.7 47 0.1 (schottky di) inafl inafr agnd1 inac inasw agnd2 inarl inarr agnd3 inbfl agnde outbrr outbrl outbsw outbc outbfr outbfl outafr outac outasw outarl outarr dgnd sda sck cs test adj vee agndm vcc inex+ inex- outafl soutrr soutrl agnd6 inbrr agnd5 inbsw inbc agnd4 inbfr inbrl 2 3 4 5 6 7 8 9 10 11 1 30 29 28 27 26 25 23 24 34 35 36 37 38 39 40 22 21 20 19 18 17 16 15 14 13 12 33 32 31 41 42 43 44 1 1 0.1 47 unit resistance : capacitance : f 1 oscillation countermeasure ? using higher capacity than 10pf may cause oscillation. as oscillation countermeasure, insert series resisto r to terminal directly as below. capacity terminal direct-mount type series resister c < 10pf not necessary 10pf < c < 100pf 100 100p f < c < 1000pf 100 2 mounting pattern ? wire a gnd line to the gnd point which becomes a standard by the indep endence. ? wiring pattern of cs, sck and sda should be away from the analog lines to avoid cross-talk. ? input lines should not be parallel if possible. the lines should be shielded, if they are adjacent to each other. ? please connect the resistor (39k ) for adjusting vco frequency to adj terminal in the shortest dis tance possible. output terminal resistor for oscillation countermeasure (coupling capacitor) downloaded from: http:///
BD3433K 14 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 (1) volume control description (bold with underline is initial setting value) (a) volume setting value (for 5.1ch signal) : +23db to -79db, Cdb(mute) , 1db/step (for monaural signal) : +15db to -63db, Cdb(mute) , 1db/step (b) selection of switching formula secondary switching , soft switching (c) soft switching transition time transition time/db 0.64 / 1.28 / 2.56 / 5.12 [msec/db] * gnd transition time of soft switching fresh setup present setup transition per db is fixed, is not affected by changing of volume. (1db) (2) in case of receiving following setting command during volume changing terminate current transition and start next transition. switching volume can be done with only 1db/step, so termina tion or restart of transition is on timing of 1db/step basis. transition image of gain setup in the volume operation . [db] - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 command order example - 30db 2.56msec/db order example - 24db 0.64msec/db 1db interval 2.56msec 1db interval 0.64msec volume gain [db] >& time >' (figure notes) when setting command example1, volume gain dro ps from -20db to -30db with 2.56msec/db. in the figure , when setting command example 2 during a transition from - 27 db to -28db, command example 2 will be set when it reaches - 28db because termination or restart can be done every 1db unit. downloaded from: http:///
BD3433K 15 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 i/o equivalent circuits terminal number terminal name i/o terminal voltage terminal equivalent circuits 2 3 5 6 8 9 11 12 14 15 17 18 inafl inafr inac inasw inarl inarr inbfl inbfr inbc inbsw inbrl inbrr i 0v v ee v cc 100k 43 inex+ i 0v v ee 13.5k v cc 13.5k 44 inex- i 0v v ee v cc 13.5k 13.5k 20 21 22 23 24 25 26 27 28 29 30 31 32 33 soutrl soutrr outafl outafr outac outasw outarl outarr outbfl outbfr outbc outbsw outbrl outbrr o 0v v ee v cc vee vcc vee vcc vee vcc vee vcc downloaded from: http:///
BD3433K 16 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 i/o equivalent circuits C continued terminal number terminal name i/o terminal voltage terminal equivalent circuits 35 36 37 sda sck cs i - 3p v ee 5k v cc dgnd 39 adj - 0.7v v cc agndm v ee 1 4 7 10 13 16 19 34 41 agnde agnd1 agnd2 agnd3 agnd4 agnd5 agnd6 dgnd agndm - 0v v ee v cc 42 40 vcc vee - 8.3v -8.3v v ee v cc vee vcc vee vcc vcc vee vee vcc downloaded from: http:///
BD3433K 17 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 operational notes 1. reverse connection of power supply connecting the power supply in reverse polarity can damage the ic. take precautions against reverse polarity when connecting the power supply, such as mounting an extern al diode between the power supply and the ics power supply pins. 2. power supply lines design the pcb layout pattern to provide low impedance sup ply lines. separate the ground and supply lines of the digital and analog blocks to prevent noise in the groun d and supply lines of the digital block from affecting the a nalog block. furthermore, connect a capacitor to ground at all pow er supply pins. consider the effect of temperature and aging on the capacitance value when using electrolytic capac itors. 3. vee voltage ensure that no pins are at a voltage below that of the vee pin at any time, even during transient condition. 4. ground wiring pattern when using both small-signal and large-current ground trace s, the two ground traces should be routed separately but connected to a single ground at the reference point of the a pplication board to avoid fluctuations in the small-si gnal ground caused by large currents. also ensure that the ground traces of external components do not cause variations on the ground voltage. the ground lines must be as short and th ick as possible to reduce line impedance. 5. thermal consideration should by any chance the power dissipation rating be exc eeded the rise in temperature of the chip may result in deterioration of the properties of the chip. in case of exceeding this absolute maximum rating, increase the board size and copper area to prevent exceeding the pd rating. 6. recommended operating conditions these conditions represent a range within which the expec ted characteristics of the ic can be approximately obtained . the electrical characteristics are guaranteed under the conditi ons of each parameter. 7. inrush current when power is first supplied to the ic, it is possible that th e internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence a nd delays, especially if the ic has more than one power supply. therefore, give special consideration to power coup ling capacitance, power wiring, width of ground wiring, and routing of connections. 8. operation under strong electromagnetic field operating the ic in the presence of a strong electromagnetic field m ay cause the ic to malfunction. 9. testing on application boards when testing the ic on an application board, connecting a capacitor directly to a low-impedance output pin may subject the ic to stress. always discharge capacitors compl etely after each process or step. the ics power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. to prevent damage from static discharge, ground the ic during assembly and use similar precautions during transport and storage. 10. inter-pin short and mounting erro rs ensure that the direction and position are correct when mounti ng the ic on the pcb. incorrect mounting may result in damaging the ic. avoid nearby pins being shorted to each other especially to ground, power supply and output pin. inter-pin shorts could be due to many reasons such as m etal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. 11. unused input pins input pins of an ic are often connected to the gate of a mos tran sistor. the gate has extremely high impedance and extremely low capacitance. if left unconnected, the electric field from the outside can easily charge it. the small ch arge acquired in this way is enough to produce a significant e ffect on the conduction through the transistor and cause unexpected operation of the ic. so unless otherwise specifie d, unused input pins should be connected to the power supply or ground line. downloaded from: http:///
BD3433K 18 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 operational notes C continued 12. regarding the input pin of the ic this monolithic ic contains p+ isolation and p substrate l ayers between adjacent elements in order to keep them isolated. p-n junctions are formed at the intersection of t he p layers with the n layers of other elements, creating a parasitic diode or transistor. for example (refer to figure below): when vee > pin a and vee > pin b, the p-n junction operates as a parasitic diode. when vee > pin b, the p-n junction operates as a parasitic transistor. parasitic diodes inevitably occur in the structure of the ic. the operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physica l damage. therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the vee voltage to an input pin (and thus to the p substrate) should be avoided. figure 1. example of monolithic ic structure n n p + p n n p + p substrate gnd n p + n n p + n p p substrate gnd gnd parasitic elements pin a pin a pin b pin b b c e parasitic elements gnd parasitic elements c be transistor (npn) resistor n region close-by parasitic elements vee vee vee vee downloaded from: http:///
BD3433K 19 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 ordering information b d 3 4 3 3 k - x x part number package k : qfp44 packaging and forming specification e2: embossed tape and reel none: tray marking diagram qfp44 (top view) b d 3 4 3 3 k part number marking lot number 1pin mark downloaded from: http:///
BD3433K 20 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 physical dimension, tape and reel information package name qfp44 unit mm downloaded from: http:///
BD3433K 21 / 21 tsz02201-0c2c0e100610-1-2 ? 20 15 rohm co., ltd. all rights reserved. www .rohm.com tsz22111 ? 15 ? 001 16.dec.2015 rev.001 revision history date revision changes 16.dec.2015 001 new release downloaded from: http:///
datasheet d a t a s h e e t notice-pga-e rev.00 2 ? 2015 rohm co., ltd. all rights reserved. notice precaution on using rohm products 1. our products are designed and manufac tured for application in ordinary elec tronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring ex tremely high reliability (such as medical equipment (note 1) , transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (?specific applications?), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hm?s products for specific applications. (note1) medical equipment classification of the specific applications japan usa eu china class class class b class class ? class 2. rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohm?s products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4. the products are not subjec t to radiation-proof design. 5. please verify and confirm characteristics of the final or mounted products in using the products. 6. in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse. is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7. de-rate power dissipation depending on ambient temperature. when used in sealed area, c onfirm that it is the use in the range that does not exceed t he maximum junction temperature. 8. confirm that operation temperat ure is within the specified range described in the product specification. 9. rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document. precaution for mounting / circuit board design 1. when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2. in principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. if the flow sol dering method is preferred on a surface-mount products, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification downloaded from: http:///
datasheet d a t a s h e e t notice-pga-e rev.00 2 ? 2015 rohm co., ltd. all rights reserved. precautions regarding application examples and external circuits 1. if change is made to the constant of an external circuit, pl ease allow a sufficient margin considering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2. you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own indepen dent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1. product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2. even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3. store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. use products within the specified time after opening a humidity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohm?s internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since concerned goods might be fallen under listed items of export control prescribed by foreign exchange and foreign trade act, please consult with rohm in case of export. precaution regarding intellectual property rights 1. all information and data including but not limited to application example contained in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. rohm shall not have any obligations where the claims, actions or demands arising from the co mbination of the products with other articles such as components, circuits, systems or external equipment (including software). 3. no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the products or the informati on contained in this document. pr ovided, however, that rohm will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the produc ts, subject to the terms and conditions herein. other precaution 1. this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 2. the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 3. in no event shall you use in any wa y whatsoever the products and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 4. the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties. downloaded from: http:///
datasheet datasheet notice ? we rev.001 ? 201 5 rohm co., ltd. all rights reserved. general precaution 1. before you use our pro ducts, you are requested to care fully read this document and fully understand its contents. rohm shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny rohms products against warning, caution or note contained in this document. 2. all information contained in this docume nt is current as of the issuing date and subj ec t to change without any prior notice. before purchasing or using rohms products, please confirm the la test information with a rohm sale s representative. 3. the information contained in this doc ument is provi ded on an as is basis and rohm does not warrant that all information contained in this document is accurate an d/or error-free. rohm shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. downloaded from: http:///

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