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hd audio soundmax ? codec AD1983 rev. 0 information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ?2006 analog devices, inc. all rights reserved. features 2 dac channels: 16-, 20-, or 24-bit 2 adc channels: 16- or 20-bit hd audio sample rates 8 khz, 11.025 khz, 16 khz, 22.05 khz, 32 khz, 44.1 khz, 48 khz greater than 90 db dynamic range s/pdif output: 32 khz, 44.1 khz, or 48 khz, 16- or 24-bit digital beep generator integrated headphone amplifiers selectable microphone inputs with preamplifiers stereo line level inputs full analog mixer 2 gpios for external circuit control, jack sense 32-lead, pb-free lfcsp_vq (qfn) package enhanced features no afilt pins, results in bom savings jack sensing autoconfiguration options mute line output and monaural output (mono_out) when headphones are used mute mono_out when a device is in the line out jack selectable sense trip level: high/low supports all jack types peripheral identification/enumeration jack presence detection: hd audio sense and gpios microphone to mono_out for speakerphone advanced power management modes 2 software-controlled microphone bias pins stereo microphone array capture source from two different ports 0 db, 10 db, 20 db, and 30 db boost options functional block diagram gpio_0/js_1 gpio_1/js_0 sense_a s/pdif_out sense_src gpio jack sense dv ss dv dd av ss av dd 20-bit 48khz pcm/float32 - adc nid: 04 nid: 0c nid: 0d selector 4:1 selector 2:1 selector 4:1 g nid: 01 +3.3v 0db to +22.5db ?34.5db to +12db sdata_in bit_clk reset sync sdata_out ga nid: 11 nid: 0e ga nid: 12 ga nid: 13 nid: 09 mic bias bias_en z mic_bias-c port-c line in nid: 0f nid: 0b selector 2:1 ga m nid: 07 mono_out output_en ?46.5db to +3db ga m nid: 05 port-d front ?46.5db to +3db boost 0db, 10db, 20db, 30db selector 2:1 nid: 10 digital pcbeep 0db to ?45.0db 3db steps g m m m ?34.5db to +12db m ?34.5db to +12db m nid: 03 nid: 02 nid: 0a 24-bit 48khz pcm - dac 16-, 20-, 24-bit 32khz, 44.1khz, 48khz pcm/ac3 s/pdif tx z selector 2:1 output_en ga m nid: 06 port-a headphone ?46.5db to +3db +5.0v hp nid: 08 mic bias bias_en z mic_bias-b port-b mic 05205-001 hd audio interface bias_sel bias_sel figure 1.
AD1983 rev. 0 | page 2 of 16 table of contents features .............................................................................................. 1 enhanced features ............................................................................ 1 functional block diagram .............................................................. 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 test conditions ............................................................................. 3 power down dissipation ............................................................. 5 absolute maximum ratings ............................................................ 6 environmental conditions ..........................................................6 esd caution ...................................................................................6 pin configuration and function descriptions ..............................7 hd audio codec information ........................................................9 verb support ............................................................................... 12 jack presence detection ................................................................. 14 outline dimensions ....................................................................... 15 ordering guide .......................................................................... 15 revision history 4/06revision 0: initial version
AD1983 rev. 0 | page 3 of 16 specifications test conditions test conditions for the AD1983 are as follows, unless otherwise noted. general test conditions temperature at 25c digital supply (dv dd ) at 3.3 v 10% analog supply (av dd ) at 5.0 v 10% sample rate (f s ) at 48 khz input signal at 1.0 khz analog output pass band at 20 hz to 20,000 hz v ih at 2.0 v v il at 0.8 v v ih at 2.4 v v il at 0.6 v dac test conditions calibrated output ?3 db relative to full scale 10 k output load, port d, and mono_out 32 output load, port a adc test conditions calibrated 0 db pga gain input ?3.0 db relative to full scale table 1. parameter conditions min typ max unit analog input port-b, port-c 0 db 1 v rms 1 2.83 v p-p port-b, port-c 10 db 0.316 v rms 0.894 v p-p port-b, port-c 20 db 0.1 v rms 0.283 v p-p port-b, port-c 30 db 0.032 v rms 0.089 v p-p input impedance 2 20 k input capacitance 2 5 7.5 pf master volume step size port-a, port-d, mono_out 1.5 db output gain range C46.5 +3 db mute attenuation of 0 db fundamental 80 db programmable gain amplifier adc step size 1.5 db pga gain range 0.0 22.5 db analog mixerinput gain/amplifiers/attenuators signal-to-noise ratio (snr) line in to line out 85 db microphone in to line out 2 80 db step size all mixer inputs except digital pc beep 1.5 db step size: digital pc beep 3.0 db input gain range all mixer inputs ex cept digital pc beep ?34.5 +12.0 db digital pc beep ?45.0 0.0 db digital decimation and interpolation filters 2 pass band 0 0.4 f s hz pass-band ripple 0.09 db transition band 0.4 f s 0.6 f s hz stop band 0.6 f s hz stop-band rejection ?74 db
AD1983 rev. 0 | page 4 of 16 parameter conditions min typ max unit group delay 16/f s sec group delay variation over pass band 0 s analog-to-digital converters resolution +20 bits total harmonic distortion (thd) ?92 db dynamic range ?60 db input, thd + n referenced to f s , a-weighted ?85 db crosstalk 2 line inputs: input l, ground r, read r; input r, ground l, read l ?80 db line inputs and othe r inputs ?100 ?80 db gain error full- scale span relative to nominal input voltage 10 % interchannel gain mismatch difference of gain errors 0.5 db adc offset error 2 5 mv digital-to-analog converters resolution +24 bits total harmonic distortion (thd) line out ?86 db headphone out ?76 db dynamic range ?60 db input, thd + n referenced to f s , a-weighted ?90 db gain error full-scale span relative to nominal input voltage 10 % interchannel gain mismatch difference of gain errors 0.7 db dac crosstalk 2 input l, zero r, read r out; input r, zero l, read l out ?80 db analog output full-scale output voltage port-d and mono_out 1 v rms 2.83 v p-p output impedance 2 300 external load impedance 2 10 k output capacitance 2 15 pf external load capacitance 1000 pf full-scale output voltage port-a: headphone out 1 v rms 2.83 v p-p external load impedance 2 32 output capacitance 2 15 pf external load capacitance 2 1000 pf vref_filt 2.050 2.250 2.450 v mic_bias (port-b and port-c) at 50% setting 2.250 v at 80% setting 3.700 v at 0% setting 0.0 v current drive 5 ma mute click muted output, unmuted midscale dac output 5 mv static digital specifications high level input voltage (v ih ), digital inputs 0.65 dv dd v low level input voltage (v il ) 0.35 dv dd v high level output voltage (v oh ) i oh = 2 ma 0.90 dv dd v low level output voltage (v ol ) i ol = 2 ma 0.10 dv dd v input leakage current ?10 +10 a output leakage current ?10 +10 a input/output pin capacitance 7.5 pf
AD1983 rev. 0 | page 5 of 16 parameter conditions min typ max unit power supply power supply range analog (av dd ) 10% 4.5 5.5 v digital (dv dd ) 10% 2.97 3.63 v power dissipationanalog (av dd )/digital (dv dd ) 165/125 mw analog supply currentanalog (av dd ) 33 ma digital supply currentdigital (dv dd ) 38 ma power supply rejection 100 mv p-p signal @ 1 khz 40 db 1 rms values assume sine wave input. 2 guaranteed by design; not production tested. power down dissipation table 2. parameter dv dd av dd unit function node 1 0 1.8 ma dac 30 26 ma adc 28 26 ma mixer 37 17 ma 1 bit_clk off.
AD1983 rev. 0 | page 6 of 16 absolute maximum ratings table 3. parameter rating digital (dv dd ) ?0.3 v to +3.6 v analog (av dd ) ?0.3 v to +6.0 v input current (except supply pins) 10.0 ma analog input voltage (signal pins) ?0.3 v to av dd + 0.3 v digital input voltage (signal pins) ?0.3 v to dv dd + 0.3 v ambient temperature (operating) commercial range 0c to 70c industrial range ?40c to +85c storage temperature range ?65c to +150c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. environmental conditions table 4. thermal resistance package ja 1 jc 2 (bottom) jc 2 (top) unit lfcsp_vq 58.8 1.52 23.69 c/w 1 ja is the thermal resistance (junction-to-ambient). bottom pad not soldered. 2 jc is the thermal resistance (junction-to-case). bottom pad not soldered. esd caution esd (electrostatic discharge) sensitive device. electrosta tic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge without detection. although this product features proprietary esd protection circuitry, permanent dama ge may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd pr ecautions are recommended to avoid performance degradation or loss of functionality.
AD1983 rev. 0 | page 7 of 16 pin configuration and fu nction descriptions pin 1 indicator nc = no connect 1 nc (reserved) 2 sdata_out 3 bit_clk 4 dv ss 5 sdata_in 6 dv dd 7 sync 8 reset 24 port-d_r (line out) 23 port-d_l (line out) 22 av dd (optional) 21 sense_src 20 mic_bias-c 19 mic_bias-b 18 vref_filt 17 av ss 9 s e n s e _ a 1 0 n c 1 1 n c 1 2 n c 1 3 p o r t - b _ l ( m i c ) 1 4 p o r t - b _ r ( m i c ) 1 5 p o r t - c _ l ( l i n e i n ) 1 6 p o r t - c _ r ( l i n e i n ) 3 2 s / p d i f _o u t 3 1 g p i o _ 1 / j s _ 0 3 0 g p i o _ 0 / j s _ 1 2 9 a v s s 2 8 p o r t - a _ r ( h e a d p h o n e ) 2 7 p o r t - a _ l ( h e a d p h o n e ) 2 6 a v d d 2 5 m o n o _ o u t top view (not to scale) AD1983 05205-002 figure 2. pin configuration table 5. pin function descriptions mnemonic pin no. i/o 1 description sdata_out 2 i hd audio link seri al data output. codec input stream. bit_clk 3 i hd audio link bit clock input. 24 mhz. sdata_in 5 i/o hd audio link se rial data input. codec output stream. sync 7 i hd audio link frame sync. reset 8 i hd audio link reset. master hardware reset. gpio_1/js_0 31 digital i/o gpio_1: general purpose input/o utput pin. digital signal used for circuit control. js_0: classical (dc) jack sense for line_out pins. low = jack not present, high = jack present. gpio_0/js_1 30 digital i/o gpio_0: general purpose input/ output pin. digital signal used circuit control. js_1: classical (dc) jack sense for headphone. low = jack not present, high = jack present. sense_a 9 digital i jack sense input for presence detect on port a through port d. used with isolated switches on audio jacks. sense_src 21 digital o connect via 2.67 k 1% resistor to pin 9 (sense_a) when using the sense_a functionality. this reduces the current draw of the jack presence tree during idle states. remove the resistor between pin 9 and av dd in this mode. port-b_l (mic) 13 analog i microphone or line-in left input. port-b_r (mic) 14 analog i microphone or line-in right input. port-c_l (line in) 15 analog i line-in or microphone left input. port-c_r (line in) 16 analog i line-in or microphone right input. port-d_l (line out) 23 analog o line-out-(front)-left channel. port-d_r (line out) 24 analog o line-out-(front)-right channel. mono_out 25 analog o monaural output to telephony subsystem speakerphone. port-a_l (headphone) 27 analog o headphone-out-left channel. port-a_r (headphone) 28 analog o headphone-out-right channel. vref_filt 18 o voltage reference filter. mic_bias-b 19 o programmable microphone bias output. intended for connection to port-b.
AD1983 rev. 0 | page 8 of 16 mnemonic pin no. i/o 1 description mic_bias-c 20 o programmable microphone bias output. intended for connection to port-c. dv ss 4 i digital supply return (ground). dv dd 6 i digital supply voltage (3.3 v). av ss 17, 29 i analog supply return (ground). av dd 22, 26 i analog supply voltage (5.0 v). av dd supplies should be well filtered because supply noise degrades audio performance. connection to pin 22 is optional. s/pdif_out 32 digital o supports s/pdif output. nc 1, 10 to 12 1 i refers to input and o refers to output.
AD1983 rev. 0 | page 9 of 16 hd audio codec information table 6. widget list and descriptions nid (hex) name type id type description 00 root x root device identification. 01 function x function designates this device as an audio codec. 02 s/pdif 0 audio output designates the codec s/pdif digital stream output interface. 03 front dac 0 audio output designates the pl ayback channel digital/audio converters. 04 record adc 1 audio input designates the record channel audio/digital converters. 05 port-d (line out) 4 pin complex port-d pin drivers. typically used as rear panel line output. 06 port-a (headphone out) 4 pin complex port-a pin drivers. typically used as front panel headphone output. 07 mono_out 4 pin complex monaural output pin driver. typica lly used to drive an internal speaker or as a microphone selector on a telephony system. 08 port-b (front microphone) 4 pin complex port-b pin drivers. typically used as front panel microphone. 09 port-c (line in) 4 pin complex port-c pin drivers. typically used as rear panel line input. 0a s/pdif_out 4 pin complex s/pdif output digital interface. 0b mono selector 3 audio selector chooses the si gnals that drive the mono output mixer and pin. 0c microphone selector/boost 3 audio mixer allows microphone source port selection and boost preamplifier setting. 0d line in selector 3 audio selector allows line in source port selection. 0e analog mixer 2 audio mixer selectively mixes analog input signals into a single signal. 0f mono mixer 2 audio mixer stereo-to-mono mixer. 10 digital pc beep 7 beep generator digital pc beep generator. 11 front mix amp 3 audio selector individual gain control for the dac (front) input to the analog mixer. 12 port-b mix amp 3 audio selector individual gain control for the port-b (front microphone) input to the analog mixer. 13 port-c mix amp 3 audio selector individual gain control for the port-c (line in) input to the analog mixer. 14 record selector 3 audio selector chooses the signal that is recorded by the record adc. also contains the record gain controls. 15 analog power-down 5 power widget controls power on analog mixer and associated amplifiers. this controls the power of all widgets in its connection list. table 7. root and function node parameters 1 type vendor id revision id sub node count function group type audio f.g. caps gpio caps nid (hex) name id type pid 00 2 pid 02 2 pid 04 2 pid 05 2 pid 08 2 pid 11 2 00 root x root 11d41983 00100400 00010001 01 function x function 00020014 00000001 00010c0c 40000002 1 default ssid: bfd30000. 2 pid = parameter id.
AD1983 rev. 0 | page 10 of 16 table 8. widget parameters nid widget caps pcm size, rate stream format pin caps input amp caps con. list len power states processing caps gpio caps vendor- specific (hex) name pid 09 1 pid 0a 1 pid 0b 1 pid 0c 1 pid 0d 1 pid 0e 1 pid 0f 1 pid 10 1 pid 11 1 pid f0 1 01 function 000004c0 000e007f 00000001 00000000 00000009 00000001 80053f3d 00000084 02 s/pdif 00030311 00020060 00000005 00000002 03 front dac 00000441 000e007f 00000001 00000000 00000009 00004601 00000010 04 record adc 00100501 000e007f 00000001 00000001 00000009 05 port-d (line out) 00400185 00000017 00000002 80053f3d 00000008 06 port-a (headphone out) 00400185 0000001f 00000002 80053f3d 00000008 07 mono_out 00400104 00000010 00000001 80053f3d 08 port-b (front microphone) 00400081 00001727 00000000 00000008 09 port-c (line in) 00400081 00001727 00000000 00000008 0a s/pdif_out 00400301 00000010 00000001 0b mono selector 00300101 00000004 0c microphone selector/boost 0030010d 00000002 00270300 0d line in selector 00300101 00000002 0e analog mixer 00200101 00000003 0f mono mixer 00200100 00000001 00000002 10 digital pc beep 0070000c 00000000 800b0f0f 11 front mix amp 0030010d 00000001 80051f17 12 port-b mix amp 0030010d 00000001 80051f17 13 port-c mix amp 0030010d 00000001 80051f17 14 record selector 0030010d 00000004 80050f00 15 analog power- down 00500500 00000004 00000009 1 pid = parameter id.
AD1983 rev. 0 | page 11 of 16 table 9. default configuration parameters bit 31 29 27 23 19 15 8 7 3 bit 30 28 24 20 16 12 8 4 0 location misc. node id (hex) name type id value connect chassis position def. device conn. type color ovrrd. def. assn. sequence 05 line out 4 01014010 jack external rear line out 1/8" jack green 0 1 0 06 hp out 4 0221401f jack external front hp out 1/8" jack green 0 1 f 07 mono out 4 991301f0 fixed internal special 3 speaker atapi unknown 1 f 0 08 microphone in 4 02a19020 jack external front mic in 1/8" jack pink 0 2 0 09 line in 4 0181302e jack external rear line in 1/8" jack blue 0 2 e 0a s/pdif out 4 014511f0 jack external rear spdif out optical black 1 f 0 table 10. widget connection list index 0 1 2 3 nid (hex) name nid (hex) ni d (hex) nid (hex) nid (hex) 02 s/pdif 01 04 03 front dac 04 record adc 14 05 port-d (line out) 03 0e 06 port-a (headphone out) 03 0e 07 mono_out 0f 08 port-b (front microphone) 09 port-c (line in) 0a s/pdif_out 02 0b mono selector 03 0c 0d 0e 0c microphone selector/boost 08 09 0d line in selector 09 08 0e analog mixer 11 12 13 0f mono mixer 0b 10 digital pc beep 11 front mix amp 03 12 port-b mix amp 0c 13 port-c mix amp 0d 14 record selector 0c 0d 0e 0f 15 analog power-down 05 09 0b 14
AD1983 rev. 0 | page 12 of 16 verb support table 11 and table 12 list only those hd audio verbs that are supported. table 11. widget verb support stream format amplifier gain/mute processing coefficient cofficient index parameter connection select connection list entry processing state sdi select power state channel / stream id pin widget control unsolicited enable pin sense beep generator digital converter 1 digital converter 2 get (hex) axx bxx cxx dxx f00 f01 f02 f03 f04 f05 f06 f07 f08 f09 f0a f0d node id (hex) name set (hex) 2xx 3xx 4xx 5xx --- 701 --- 703 704 705 706 707 708 709 70a 70d 70e 00 root 01 function s 1 s 1 u 2 02 s/pdif s 1 u 2 03 front dac u 2 04 record adc u 2 05 line out 06 hp out 07 mono out 08 microphone in 09 line in 0a s/pdif out 0b mono selector 0c microphone selector 0d line in selector 0e analog mixer 0f mono mixer 10 digital pcbeep 11 front mixamp 12 microphone mixamp 13 line in mixamp 14 adc selector 15 analog power down 1 s = supports adi specific functionality. re fer to the programming guide fo r more details (available from your assigned applica tions engineer). 2 u = unsupported in the AD1983; the get verb al ways returns 0, the se t verbs are ignored.
AD1983 rev. 0 | page 13 of 16 table 12. widget extended verb support gpi/o data gpi/o enable gpi/o direction gpi/o wake mas k gpi/o unsolicited gpi/o sticky mask config def byte1 config def byte2 config def b y te3 config def b y te4 subsystem id b y te1 subsystem id b y te2 subsystem id b y te3 subsystem id byte4 get (hex) f15 f16 f17 f18 f19 f1a f1c f20 node id name set (hex) 715 716 717 718 719 71a 71c 71d 71e 71f 720 721 722 723 01 1 function u 2 u 2 05 line out 06 hp out 07 mono out 08 microphone 09 line in 0a s/pdif out 1 only the function node (node id 01) supports the reset verb 7ff (set verb only). 2 u = unsupported in the AD1983. the get verb alwa ys returns 0, and the set verbs are ignored.
AD1983 rev. 0 | page 14 of 16 jack presence detection the AD1983 uses one jack sense line for presence detection on up to four external jacks. this enables software to determine if there is a device plugged into a jack; then, the AD1983 sensing engine can determine what type of device it is. jack presence is detected using a resistor tree arrangement outlined in the hd audio specification. up to four jacks can be sensed on a single sense line by using a different value resistor for each between the sense line and ground (av ss ). jacks must have normally- open, isolated switches to use this method of jack presence detection. for proper operation there must be a 2.67 k 1% resistor connected between sense_a and av dd . for this configuration r1 and c1 should be installed; r2 should not be installed (see figure 3 ). the specific resistor values for each jack are shown in table 13 . to ensure accurate detection, use 1% tolerance resistors for all jack presence circuitry. table 13. jack sense mapping sense_a resistor (1%) name port node id (hex) 5.1 k line out d 05 10.0 k line in c 09 20.0 k microphone b 08 39.2 k headphone out a 06 an alternate method reduces the current for sensing by connecting a single 2.67 k 1% resistor between the sense_a and sense_src pins. for this configuration r1 and c1 are not installed; however, r2 is installed (see figure 3 ). it is recommended that designers place circuitry for both sensing methods and only install one of the two options. sense_a/src_b to jacks for port a through port d AD1983 c1 1f sense_src av ss 22, 26 21 17, 29 9 av dd a v dd r1 2.67k ? , 1%, 1/8w r2 (dne) 2.67k ? , 1%, 1/8w 05205-003 figure 3. jack presence detection
AD1983 rev. 0 | page 15 of 16 outline dimensions compliant to jedec standards mo-220-vhhd-2 0.30 0.23 0.18 0.20 ref 0.80 max 0.65 typ 0.05 max 0.02 nom 12 max 1.00 0.85 0.80 seating plane coplanarity 0.08 1 32 8 9 25 24 16 17 0.50 0.40 0.30 3.50 ref 0.50 bsc pin 1 indicato r top view 5.00 bsc sq 4.75 bsc sq 3.65 3.50 sq 3.35 pin 1 indicator 0.60 max 0.60 max 0.25 min exposed pad (bottom view) figure 4. 32-lead lead frame chip scale package [lfcsp_vq] 5 mm 5 mm body, very thin quad (cp-32-4) dimensions shown in millimeters ordering guide model temperature range package description package option AD1983jcpz 1 0 c to +70 c 32-lead lfcsp_vq, tray cp-32-4 AD1983jcpz-reel 1 0 c to +70 c 32-lead lfcsp_vq, reel cp-32-4 1 z = pb-free part.
AD1983 rev. 0 | page 16 of 16 notes ?2006 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. d05205-0-4/06(0)

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