fms6151 rev. 1b 1 www.fairchildsemi.com ja n uary 2006 fms6151 ultra portable video filter driver fms6151 ultra portable video filter driver features 5th order 8mhz (sd) ?ter po w er down to 25na dc coupled input ac or dc coupled output dc coupled output eliminate need for ac coupling cap sag correction reduces size of ac coupling cap fixed gain of 6db small, lead (pb) free, micropak packaging applications digital still cameras camera phones p ersonal digital assistants set top boxes digital video recorders description the fms6151 low cost, integrated, video ?ter is intended to replace passive lc ?ters and drivers in low voltage portable video applications. the 5th order ?ter provides better image quality compared to typical 2nd and 3rd order passive solutions. the fms6151 is intended to be directly driven by a dc-coupled da c output. the output can drive an ac or dc-coupled doubly terminated coax(150 ? ) load. dc-coupling the output removes the need for an expensive output coupling capacitor. if an ac-cou- pled output is needed, the sag correction circuit can be used to reduce the ac output coupling capacitor value. input dc levels are offset by approximately 100mv. this internal level shift is incorporated to prevent sync pulse clipping. offering sag correction, ?ed gain of 6db, and a 5th order low pass ?ter in a tiny space saving package (micropak) makes the fms6151 well suited for space sensitive applications such as cellular phones and digital cameras. block diagram v in v out 8mhz, 5th order + - sag v cc = 2.5v to 5.25v en
www.fairchildsemi.com 2 fms6151 rev. 1b fms6151 ultra portable video filter driver pin con?uration absolute maximum ratings reliability information recommended operating conditions p arameter min. max. unit dc supply voltage -0.3 6 v analog and digital i/o -0.3 v cc + 0.3 v maximum output current, do not exceed 45 ma p arameter min. typ. max. unit j unction temperature 150 ?c storage temperature range -65 150 ?c thermal resistance (thetaja), jedec standard multi-layer test boards, still air 271 ?c/w p arameter min. typ. max. unit operating temperature range -40 85 ?c supply voltage range 2.5 3.3 5.25 v fms6151 1 2 3 6 5 4 v in v out gnd sag en v cc pin assignments pin# pin type description 1v in input video input 2 gnd input ground 3s ag input sag 4v out output filtered video output 5 vcc input positive power supply 6e n input enable 0=disabled 1=enabled
fms6151 rev. 1b 3 www.fairchildsemi.com fms6151 ultra portable video filter driver dc electrical characteristics t c = 25?c, v cc = 2.7v, r s = 37.5 ? , ac coupled output into 150 ? load, sag pin connected to v out pin; unless otherwise noted. ac electrical characteristics t c = 25?c, v cc = 2.7v, r s = 37.5 ? , ac coupled output into 150 ? load, sag pin connected to v out pin; unless otherwise noted. notes: 1. 100% tested at 25?c symbol parameter conditions min. typ. max units i cc supply current 1 v cc = 2.7v, no load 3.8 6.4 ma v in video input voltage range referenced to gnd 1.2 vpp v ols output level shift 1 vin = 0v 50 200 350 mv psrr vols over power supply vcc = 2.7v to 3.3v 40 db i sh shut down current 25 na v il disabled logic low 1 0 0.8 v v ih enabled logic high 1 vcc*0.6 vcc v t on enable time 1.5 us t off disable time 50 ns symbol parameter conditions min. typ. max units a v gain 1 dc 5.6 6.0 6.6 db f 1db -1db bandwidth 1 5.0 6.7 mhz f c -3db bandwidth 8 mhz f sb attenuation 1 (stopband reject) 27mhz 40 47 db dg differential gain 0.5 % dp differential phase 0.5 ? snr signal-to-noise ratio ntc-7 weighting, 100khz to 4.2mhz 78 db
www.fairchildsemi.com 4 fms6151 rev. 1b fms6151 ultra portable video filter driver t ypical performance characteristics t c = 25?c, v cc = 2.7v, r s = 37.5 ? , ac coupled output into 150 ? load, sag pin connected to v out pin; unless otherwise noted. 30 50 70 80 10 gain (db) 0 f requency (mhz) 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 30 15 20 25 10 5 2.0 1.8 1.6 1.4 1.2 1.0 0.8 gain error (%) -40 t emperature (c) 0.6 -30 -20 -10 0 20 10 40 60 mkr frequency gain ref 400khz 6db 1 6.7mhz -1db bw 2 8.0mhz -3db bw 3 27mhz -42db f sbsd = gain (ref) ? gain (3) = 48db 3 1 2 -30 -40 -50 -60 -70 -80 psrr (db) 0.1 1 10 30 fr equency (mhz) -90 -20 -30 -40 -50 -60 -70 -80 psrr (db) 0.1 1 10 30 f requency (mhz) -90 using 0.1 f and 0.01 f bypass capacitors as suggested 3.0 signal amplitude (v) -1 time (s) 2.0 1.0 0 -1.0 6 23 5 4 1 0 2.5 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 differential gain (%) 1st -2.5 2nd 3rd 4th 5th 6th enable pulse output min = -0.58 max = 0.00 pp max = 0.58 ntsc without sag 2.5 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 differential phase (deg) 1st -2.5 2nd 3rd 4th 5th 6th min = -0.58 max = 0.12 pp max = 0.70 ntsc without sag 7.0 i cc (ma) 2.5 3.0 3.5 4.0 4.5 5.0 v cc (v) 6.0 5.0 4.0 3.0 2.0 1.0 0 5.5 figure 5. i cc vs. supply voltage figure 6. differential phase figure 3. enable/disable response figure 4. differential gain figure 1. frequency response figure 2. gain error vs. temp.
fms6151 rev. 1b 5 www.fairchildsemi.com fms6151 ultra portable video filter driver t ypical performance characteristics t c = 25?c, v cc = 2.7v, r s = 37.5 ? , ac coupled output into 150 ? load, sag pin connected to v out pin; unless otherwise noted. figure 7. supply current vs. temp. figure 8. shutdown current vs. temp. application information input voltage the fms6151 is intended to be directly driven by a dc coupled da c output. the input common mode range of the fms6151 is 1.2v pp , ground referenced. enable/shutdown the fms6151 has a shutdown feature that disables the output and reduces the quiescent current to ~25na. this feature is especially useful in portable applications, such as cellular phones, hand held gaming devices, and video cameras requiring video ?tering and drive capability. internal level shift the fms6151 has an internal level shift circuit to avoid sync tip clipping. the output signal is shifted 200mv toward the v cc r ail to help prevent clipping. this offset is extremely useful when dc coupled out or using sag correction. sag correction sag correction provides excellent performance with a small output coupling capacitor. it eliminates the 220? - 1000? output cou- pling capacitors traditionally used. the traditional output circuit (220? into 150 ? load) creates a single pole (-3db) at 5hz. reducing this capacitor causes excessive phase shift, resulting in video ?ld tilt which can prevent proper recovery of the syn- chronization signals. the fms6151 sag correction circuit provides a small amount of peaking, which provides compensation of the phase response, signi?antly reducing video ?ld tilt. the sag correction circuit allows you to decrease the large, 220?, output coupling capacitor. a 22? is used for sag correction and a 47? is used for the out- put coupling capacitor, extremely smaller and cheaper than the traditional circuit requirements. output con?uration the fms6151 output is a low impedance voltage driver. it is capable of driving an ac or dc coupled single load. f or more application information, please refer to our fms6151 application note, an-8005. te mperature (c) 4.0 3.9 3.8 3.7 3.6 i cc (ma) -40 -20 0 20 40 60 80 3.5 60 i sh (na) -40 t emperature (c) 50 40 30 20 10 0 20 40 80 60 0 -20
www.fairchildsemi.com 6 fms6151 rev. 1b fms6151 ultra portable video filter driver mechanical dimensions 6-lead micropak package 1.000.05 0.55 max (0.13) 4x 0.15 0.25 notes 1. jedec package registration is anticipated 2. dimensions are in millimeters 3. this drawing is preliminary and subject to change 4. drawing conforms to asme y14.5m-1994 detail a 1 5x 0.35 0.25 0.5 123 0.10 c 5 6 4 1.450.05 chamfer 0.075 x 45 detail a pin 1 lead 6x 2x 0.15 a b c 1 1x 0.52 0.3 6x 0.10 c 0.49 5x 0.5 1 b a (0.05) 6x 0.4 0.3 c recommended land pattern top view bottom view 0.75 0.6
www.fairchildsemi.com 7 ?006 fairchild semiconductor corporation fms6151 ultra portable video filter driver disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. life support policy f airchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ordering information temperature range for all parts: -40?c to 85?c. model part number lead free package container pack qty fms6151 FMS6151L6X yes upak-6 reel 5000
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