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data sheet ?2008-2010 cadeka microcircuits llc www.cadeka.com c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c c omlinear ? clc3800, clc3801 triple, standard defnition video amplifers f e a t u r e s n integrated 4th-order, 8mhz flters n integrated 6 or 9db video drivers n 8.8ma total supply current n 0.08%/0.04? differential gain/phase error n dc coupled inputs n ac or dc coupled outputs n dc-coupled outputs remove the need for ac-coupling capacitors n each channel can drive 2v pp into 1, 2, or 3 video loads (150, 75? or 50) n 0.1% thd n operates from 3v to 7v supplies n pb-free soic-8 package a p p l i c a t i o n s n cable or satellite set-top-box (stb) n portable dvd players n dvd players n portable media players with video out n video on demand n personal video recorders general description the clc3800 (6db) and clc3801 (9db) are triple low cost video amplifers capable of driving 2v pp into 1 (150), 2 (75), or 3 (50) video loads. the clc3800 and clc3801 feature integrated 8mhz, 4th-order low pass flters designed to cleanly pass standard defnition video signals while fltering out noise and other unwanted signals , resulting in a crisper, cleaner video signal. the 4th-order flters provide improved image quality when compared to 2nd- order passive fltering solutions. the clc3800 video amplifer offers a fxed gain of 6db. this integrated gain compensates for the voltage drop inherent in properly terminated video loads; ensuring a 1v pp video signal is present at the load. if additional gain is required, the clc3801 video amplifer offers a fxed gain of 9db. all three video amplifers can be driven by dc-coupled signals. their outputs can drive either ac- or dc-coupled loads. these video amplifers operate from 3v to 7v supplies and consume 8.8ma of supply current, making them well suited for battery powered devices. competitive comparison plots (continued on page 11) - 0.5 - 0.4 - 0.3 - 0.2 - 0.1 0 0.1 0.2 0.1 1 10 normalized gain (db) frequency (mhz) competitor a clc3800 v out = 2v pp competitor c competitor b - 80 - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 normalized gain (db) frequency (mhz) v out = 2v pp competitor a clc3800 competitor c competitor b ordering information part number gain package pb-free rohs compliant operating temperature range packaging method clc3800iso8x 6db soic-8 yes yes -40c to +125c reel clc3801iso8x? 9db soic-8 yes yes -40c to +125c reel clc3800ilp8x* 6db dfn-8 yes yes -40c to +125c reel *future product offering. ?not recommended for new design. moisture sensitivity level for all parts is msl-1. in1 out1 gain in2 out2 gain in3 out3 gain 8mhz, 4th order low pass filter clc3800 - 6db clc3801 - 9db clc3802 - 12db functional block diagram
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 2 soic pin assignments pin no. pin name description 1 in1 input, channel 1 2 in2 input, channel 2 3 in3 input, channel 3 4 +v s positive supply 5 gnd ground 6 out3 output, channel3 7 out2 output, channel 2 8 out1 output, channel 1 dfn pin confguration pin no. pin name description 1 in1 input, channel 1 2 in2 input, channel 2 3 in3 input, channel 3 4 +v s positive supply 5 gnd ground 6 out3 output, channel3 7 out2 output, channel 2 8 out1 output, channel 1 soic pin confguration dfn pin confguration 2 3 4 5 6 7 8 in3 out1 out3 gnd 1 in2 in1 +v s out2 in3 out1 out3 gnd in2 in1 +v s out2 5 6 7 8 bottom view 2 3 4 1 dfn package: use pb-free solder only
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 3 electrical characteristics at 3v t a = 25c, v s = +3v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. symbol parameter conditions min typ max units frequency domain response f -1db -1db bandwidth r l =150, ac-coupled 7.6 mhz r l =75, dc-coupled 7.6 mhz f -3db -3db bandwidth r l =150, ac-coupled 8.5 mhz r l =75, dc-coupled 8.5 mhz f sb stopband attenuation at 27mhz, r l =150, ac-coupled 48 db at 27mhz, r l =75, dc-coupled 48 db dg differential gain ntsc (3.58mhz), ac-coupled 0.7 % ntsc (3.58mhz), dc-coupled 0.62 % ntsc (3.58mhz), dc-coupled, r l =75 0.24 % dp differential phase ntsc (3.58mhz), ac-coupled 0.3 ntsc (3.58mhz), dc-coupled 0.13 ntsc (3.58mhz), dc-coupled, r l =75 0.25 time domain response gd group delay delta delay between 400khz and 3.58mhz 5.6 ns pd propogation delay delay from input to output, 4.5mhz 65 ns distortion/noise response thd total harmonic distortion v out = 2v pp , 1mhz, active video range + sync 0.1 % v out = 1.4v pp , 3.58mhz, active video range 0.9 % v out = 2v pp , 1mhz, active video range + sync, r l =75, dc-coupled 0.1 % v out = 1.4v pp , 3.58mhz, active video range, r l =75, dc-coupled 0.9 % snr signal to noise ratio ntc-7 weighting 100khz to 4.2mhz 77 db clg chroma / luma gain 400khz to 3.58mhz (ntsc) 1 % 400khz to 4.43mhz (pal) 1 % x talk crosstalk channel-to-channel at 1mhz 60 db channel-to-channel at 1mhz, r l =75, dc-coupled 58 db dc performance g gain (1) dc, clc3800, r l =75, dc-coupled 5.7 6.0 6.3 db dc, clc3801, r l =75, dc-coupled 8.6 9.0 9.4 db dc, clc3802, r l =75, dc-coupled tbd 12 tbd db g match inter-channel gain matching (1) 400khz, r l =75, dc-coupled 0.08 0.2 db v os output offset voltage (1) v in =0v, no load 230 330 390 mv i b input bias current (1) v in =0v, no load 1.4 5 a v in input voltage range (1) clc3800 0 to 1.25 v clc3801 0 to 0.9 v v o output voltage, clc3800 (2) v in =1.1v pp , r l =150, ac-coupled 2.5 v v in =1.1v pp , r l =75, dc-coupled (1) 2.35 2.5 2.66 v output voltage, clc3801 (2) v in =1.1v pp , r l =150, ac-coupled 2.5 v v in =1.1v pp , r l =75, dc-coupled (1) 2.32 2.5 2.69 v output voltage, clc3802 (2) v in =1.1v pp , r l =150, ac-coupled tbd v v in =1.1v pp , r l =75, dc-coupled (1) tbd tbd tbd v psrr power supply rejection ratio dc , no load, v s = 3v to 5.5v 52 db i s supply current (1) no load, all 3 channels 8.8 15 ma notes: 1. 100% tested at 25c 2. designed to handle sd video from -40c to +125
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 4 electrical characteristics t a = 25c, v s = +5v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. symbol parameter conditions min typ max units frequency domain response f -1db -1db bandwidth r l =150, ac-coupled 7.7 mhz r l =75, dc-coupled 7.7 mhz f -3db -3db bandwidth r l =150, ac-coupled 8.6 mhz r l =75, dc-coupled 8.6 mhz f sb stopband attenuation at 27mhz, r l =150, ac-coupled 48 db at 27mhz, r l =75, dc-coupled 48 db dg differential gain ntsc (3.58mhz), ac-coupled 0.17 % ntsc (3.58mhz), dc-coupled 0.08 % ntsc (3.58mhz), dc-coupled, r l =75 0.03 % dp differential phase ntsc (3.58mhz), ac-coupled 0.18 ntsc (3.58mhz), dc-coupled 0.04 ntsc (3.58mhz), dc-coupled, r l =75 0.04 time domain response gd group delay delta delay between 400khz and 3.58mhz 5.6 ns pd propogation delay delay from input to output, 4.5mhz 65 ns distortion/noise response thd total harmonic distortion v out = 2v pp , 1mhz, active video range + sync 0.1 % v out = 1.4v pp , 3.58mhz, active video range 0.5 % v out = 2v pp , 1mhz, active video range + sync, r l =75, dc-coupled 0.15 % v out = 1.4v pp , 3.58mhz, active video range, r l =75, dc-coupled 0.6 % snr signal to noise ratio ntc-7 weighting 100khz to 4.2mhz 77 db clg chroma / luma gain 400khz to 3.58mhz (ntsc) 1 % 400khz to 4.43mhz (pal) 1 % x talk crosstalk channel-to-channel at 1mhz -61 db channel-to-channel at 1mhz, r l =75, dc-coupled -58 db dc performance g gain (1) dc, clc3800, r l =75, dc-coupled 5.7 6.0 6.3 db dc, clc3801, r l =75, dc-coupled 8.6 9.0 9.4 db dc, clc3802, r l =75, dc-coupled tbd 12 tbd db g match inter-channel gain matching (1) 400khz, r l =75, dc-coupled 0.08 0.2 db v os output offset voltage (1) v in =0v, no load 230 330 390 mv i b input bias current (1) v in =0v, no load 1.4 5 a vr in video range - input (1) clc3800 0 to 1.1 0 to 1.4 v clc3801 0 to 0.78 0 to 1 v v o output voltage, clc3800 (2) v in =1.1v pp , r l =150, ac-coupled 2.5 v v in =1.1v pp , r l =75, dc-coupled (1) 2.35 2.5 2.66 v output voltage, clc3801 (2) v in =1.1v pp , r l =150, ac-coupled 2.5 v v in =1.1v pp , r l =75, dc-coupled (1) 2.32 2.5 2.69 v output voltage, clc3802 (2) v in =1.1v pp , r l =150, ac-coupled tbd v v in =1.1v pp , r l =75, dc-coupled (1) tbd tbd tbd v psrr power supply rejection ratio dc, no load 53 db i s supply current (1) total 9.5 15 ma notes: 1. 100% tested at 25c 2. designed to handle sd video from -40 to +125
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 5 absolute maximum ratings the safety of the device is not guaranteed when it is operated above the absolute maximum ratings. the device should not be operated at these absolute limits. adhere to the recommended operating conditions for proper device func - tion. the information contained in the electrical characteristics tables and typical performance plots refect the operating conditions noted on the tables and plots. parameter min max unit supply voltage 0 14 v input voltage range -v s -0.5v +v s +0.5v v output short circuit current +110, -85 ma reliability information parameter min typ max unit junction temperature 150 c storage temperature range -65 150 c lead temperature (soldering, 10s) 260 c package thermal resistance 8-lead soic 100 c/w 8-lead dfn 60 c/w notes: package thermal resistance ( q ja ), jdec standard, multi-layer test boards, still air. esd protection product soic-8 dfn-8 human body model (hbm), output esd protection 5kv tbd charged device model (cdm) 2kv tbd recommended operating conditions parameter min typ max unit operating temperature range -40 +125 c supply voltage range 3 7 v
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 6 typical performance characteristics at v s = 5v t a = 25c, v s = +5v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. phase vs. frequency group delay vs. frequency frequency response ( v out = 2v pp ) frequency response ( v out = 2v pp ) frequency response ( v out = 0.2v pp ) frequency response ( v out = 1v pp ) - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 0.2v pp - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 1v pp - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 2v pp 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 0.1 1 10 gain (db) frequency (mhz) v out = 2v pp - 160 - 140 - 120 - 100 - 80 - 60 - 40 - 20 0 20 0.1 1 10 phase ( ) frequency (mhz) v out = 2v pp 10 20 30 40 50 60 70 80 90 0.1 1 10 100 delay (ns) frequency (mhz) v out = 2v pp
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 7 typical performance characteristics at v s = 5v t a = 25c, v s = +5v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. large signal pulse response large signal pulse response differential gain and phase harmonic distortion vs. output voltage noise vs. frequency (snr) crosstalk vs. frequency - 100 - 90 - 80 - 70 - 60 - 50 - 40 - 30 0.1 1 10 crosstalk (db) frequency (mhz) ch.1 < - > ch.2 ch.1 < - > ch.3 ch.2 < - > ch.3 v out = 2v pp - 100 - 90 - 80 - 70 - 60 - 50 - 40 - 30 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 distortion (dbc) output amplitude (v pp ) hd3 hd2 f = 3.58mhz - 0.5 0 0.5 1 1.5 2 2.5 3 - 100 0 100 200 300 400 500 600 700 800 900 input/output voltage (v) time (ns) output input input rise/fall time = 140ns - 0.5 0 0.5 1 1.5 2 2.5 3 - 100 0 100 200 300 400 500 600 700 800 900 input/output voltage (v) time (ns) output input input rise/fall time = 1ns
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 8 typical performance characteristics at v s = 3v t a = 25c, v s = +3v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. phase vs. frequency group delay vs. frequency frequency response ( v out = 2v pp ) frequency response ( v out = 2v pp ) frequency response ( v out = 0.2v pp ) frequency response ( v out = 1v pp ) - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 0.2v pp - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 1v pp - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 1000 gain (db) frequency (mhz) v out = 0.2v pp 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 0.1 1 10 gain (db) frequency (mhz) v out = 0.2v pp - 160 - 140 - 120 - 100 - 80 - 60 - 40 - 20 0 20 0.1 1 10 phase ( ) frequency (mhz) v out = 2v pp 10 20 30 40 50 60 70 80 90 0.1 1 10 100 delay (ns) frequency (mhz) v out = 2v pp
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 9 typical performance characteristics at v s = 3v t a = 25c, v s = +3v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. large signal pulse response large signal pulse response differential gain and phase harmonic distortion vs. output voltage noise vs. frequency (snr) crosstalk vs. frequency - 100 - 90 - 80 - 70 - 60 - 50 - 40 - 30 0.1 1 10 crosstalk (db) frequency (mhz) ch.1 < - > ch.2 ch.1 < - > ch.3 ch.2 < - > ch.3 v out = 2v pp - 100 - 90 - 80 - 70 - 60 - 50 - 40 - 30 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 distortion (dbc) output amplitude (v pp ) hd2 hd3 rl = 150 - 0.5 0 0.5 1 1.5 2 2.5 3 - 100 0 100 200 300 400 500 600 700 800 900 input/output voltage (v) time (ns) output input input rise/fall time = 140ns - 0.5 0 0.5 1 1.5 2 2.5 3 - 100 0 100 200 300 400 500 600 700 800 900 input/output voltage (v) time (ns) output input input rise/fall time = 1ns
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 10 typical performance characteristics driving multiple video loads t a = 25c, v s = +5v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. 1 load = 150, 2 loads = 75, 3 loads = 50, 4 loads = 37.5. output voltage swing differential gain and phase total harmonic distortion frequency response pulse response - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 0.1 1 10 normalized gain (db) frequency (mhz) v out = 0.2v pp 4 loads 3 loads 2 loads 1 load v out = 2v pp - 1.5 - 1.0 - 0.5 0.0 0.5 1.0 1.5 0.0 0.5 1.0 1.5 2.0 output (v) time (us) 1 load 4 loads 3 loads 2 loads 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 - 0.5 0.0 0.5 1.0 1.5 2.0 2.5 output voltage (v) input voltage (v) 1 load 2 loads 3 loads 4 loads
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 11 typical competitive comparison plots t a = 25c, v s = +5v, input is dc-coupled, input source resistance = 37.5, r l = 150 thru a 220f ac-coupling capacitor, v in = 1v pp ; unless otherwise noted. total harmonic distortion dc-coupled out (r l = 75?) signal to noise ratio and differential gain/phase total harmonic distortion (r l = 150?) total harmonic distortion (r l = 75?) frequency response frequency response - 0.5 - 0.4 - 0.3 - 0.2 - 0.1 0 0.1 0.2 0.1 1 10 normalized gain (db) frequency (mhz) competitor a clc3800 v out = 2v pp competitor c competitor b - 80 - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 0.1 1 10 100 normalized gain (db) frequency (mhz) v out = 2v pp competitor a clc3800 competitor c competitor b - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 0.1 1 10 thd (db) frequency (mhz) v out = 2v pp competitor a clc3800 competitor c competitor b - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 0.1 1 10 thd (db) frequency (mhz) competitor a clc3800 competitor c competitor b v out = 2v pp - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 0.1 1 10 thd (db) frequency (mhz) competitor a clc3800 competitor c competitor b v out = 2v pp
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 12 application information basic operation the clc3800, clc3801, and clc3802 are 3-channel video amplifers that operate with single supply voltages from 3v to 7v. they are designed to accept dc-coupled inputs and will drive ac- or dc-coupled outputs. each channel integrates a dc offset, 4th order butterworth flters, and fxed gain video drivers. the fltering is appropriate for standard defnition video signals and has a -3db cutoff of 8.6mhz. this cutoff provides an excellent compromise between fat in-band response and high frequency noise reduction. the input signals are level shifted prior to the input flters and output amplifers. inputs: dc-coupled the inputs must be dc-coupled. many dacs provide a current output that is resistively terminated to ground. these dacs are conveniently dc-coupled to the inputs of the clc3800, clc3801, or clc3802 as shown in figure 1. dc-coupled inputs use fewer components and lowers the overall system cost. figure 1. typical input confguration the input termination/source resistance is set by the application. any value up to several k can be used. lower values reduce noise, but if higher values are needed, there is little effect on flter shape or distortion performance of the clc380x. if the clc380x is located on the same board as the video source, and within a few inches, the input termination resistance is determined by the requirements of the video dac or encoder. if a cable is needed to connect the clc380x to the video source, the termination must match the cable impedance which is 75 for standard video cable. the clc380x family of video amplifers add a dc offset, raising the input signal by approximately 330mv. for example, when 0v is applied to the input, the output becomes approximately 330mv above ground. this offset eliminates sync tip clipping. figure 2 illustrates a typical dc- coupled input signal and resulting output signal after exiting the clc3800. figure 2. typical dc-coupled signal for clc3800 the input voltage range is typically 0v to 1.4v for the clc3800 at 5v supply. due to the internal fxed gain of 6db (for the clc3800) and the internal level shift of nominally 330mv, the v in range is generally limited by the output. v in and v out are fully detailed in the electrical characteristics section. outputs: ac- or dc-coupled each channel of the clc3800, clc3801, and clc3802 can drive either ac- or dc-coupled loads. each channel can drive single or dual video loads, 150 (1 video load) or 75 (2 video loads). figure 3 shows the typical confguration for driving either ac- or dc-coupled loads. with dc-coupled loads, ac-coupling capacitors are not used. match the series termination resistors to the typical cable impedance, 75 for standard video cable. keep the output connection to the series termination resistors as short as possible. if driving 2 video loads, place both resistors close to the clc3800. with ac-coupled loads, use an ac-coupling capacitor of at least 220f in a 75 environment. a value of at least 220f will ensure that low frequencies are passed, preventing video droop across the line, referred to as tilt. 0.00v 0.02v input signal 0.32v 1.02v 0.35v output signal 0.97v 2.39v clc3800 in1 out1 in2 in3 out3 +vs out2 gnd video dac/ encoder r or y b or p r g or p b dac load resistors per video dac/encoder specs +3v or +5v 0.1f 1.0f 8 7 6 5 1 2 3 4
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 13 figure 3. typical output confguration power supply decoupling for optimum performance, power supply decoupling is required. figure 4 shows the recommended usage of power supply decoupling capacitors. the 0.1f decoupling capacitor must be placed as close to pin 4 as possible, < 0.1 or < 2.5mm, to be effective. the larger, 1f capacitor can be placed further away. figure 4. recommended power supply decoupling 0 0.5 1 1.5 2 2.5 - 40 - 20 0 20 40 60 80 maximum power dissipation (w) ambient temperature ( c) soic - 8 figure 5. maximum power derating power dissipation considerations with dc-coupled loads when driving dc loads, the supply current is much higher than in ac applications and care must be taken to dissipate the extra heat generated. the output signal will swing from about 0.3v to 2.3v for full swing video. in the worst case condition, an all white screen with dual dc loads, the additional thermal rise over the quiescent condition is about 20c. an easy way to help distribute this extra heat is to place a ground plane under the part and add ground plane on the bottom of the board immediately under the part with vias between the two planes. the clc3800 is designed primarily for low voltage operation with supply values between 3.0v and 5.5v, but larger supplies can be used. in this situation, dc loads may not be possible due to thermal considerations. with single dc loads on all three channels and a 12v supply, the thermal rise is an additional 45 this gives a total temperature rise of about 57. layout considerations general layout and supply bypassing play major roles in high frequency performance. c adeka has evaluation boards to use as a guide for high frequency layout and as aid in device testing and characterization. follow the steps below as a basis for high frequency layout: ? include 1f and 0.1f ceramic capacitors for power supply decoupling ? place the 6.8f capacitor <0.75 inches of the power pin ? place the 0.1f capacitor <0.1 inches of the power pin ? remove the ground plane near the input and output pins to reduce parasitic capacitance ? minimize all trace lengths to reduce series inductances refer to the evaluation board layouts for more information. evaluation board information the following evaluation boards are available to aid in the testing and layout of these devices: evaluation board products ceb021 clc3800, clc3801 in soic pack - ages 220f 220f clc3800 in1 out1 in2 in3 out3 +vs out2 gnd 75? 75? 75? 75? 220f 75? 75? video cables ac-coupling caps are optional 8 7 6 5 1 2 3 4 75? clc3800 in1 out1 in2 in3 out3 +vs out2 gnd +3v or +5v 0.1f 1.0f 8 7 6 5 1 2 3 4
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 14 evaluation board schematics evaluation board schematics and layouts are shown in figures 9-11. application note an-6 provides a detailed description of the evaluation board. short for clc3800/clc3801/clc3802 figure 9. ceb021 schematic figure 10. ceb021 top view figure 11. ceb006 bottom view
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 15 typical application circuits 220f 220f clc3800 in1 out1 in2 in3 out3 +vs out2 gnd 75? 75? 75? 75? 220f 75? 75? video cables video dac/ encoder r or y b or p r g or p b dac load resistors per video dac/encoder specs ac-coupling caps are optional dvd player or stb r g b +3v or +5v 0.1f 1.0f 8 7 6 5 1 2 3 4 75? figure 11. typical confguration for component video (rgb, yp b p r , or yuv) 220f 220f clc3800 in1 out1 in2 in3 out3 +vs out2 gnd 75? 75? 75? 75? 220f 75? 75? video cables video dac/ encoder y cv c dac load resistors per video dac/encoder specs ac-coupling caps are optional dvd player or stb y c cv1 +3v or +5v 0.1f 1.0f 8 7 6 5 1 2 3 4 75? 220f 75? 75? cv2 figure 11. typical confguration for composite video an extra composite output is available to drive an rf modulator
data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c ?2008-2010 cadeka microcircuits llc www.cadeka.com 16 220f 220f clc3800 in1 out1 in2 in3 out3 +vs out2 gnd 75? 75? 75? 220f 75? 75? video dac/ encoder y cvbs c dac load resistors per video dac/encoder specs ac-coupling caps are optional dvd player or stb cvbs1 +3v or +5v 0.1f 1.0f 8 7 6 5 1 2 3 4 video cables 75? video cables 75? 75? 220f 75? 75? cvbs2 s-video figure 11. typical confguration for composite (cvbs) and s-video 75? 220f 220f 220f clc3800 clc3800 in1 out1 in2 in3 out3 +vs in1 out1 out3 in2 in3 out2 gnd out2 +3v or +5v +vs gnd 75? 75? 75? 75? 75? 220f 75? 75? video cables 220f 75? 75? video cables 220f 75? 75? video dac/ encoder r or y b or p r y out cv out g or p b c out dac load resistors per video dac/encoder specs ac-coupling caps are optional dvd player or stb r g b y c cv 0.1f 1.0f +3v or +5v 0.1f 1.0f 8 7 6 5 8 7 6 1 2 3 4 1 2 3 5 4 75? 75? figure 11. typical confguration for 6-channel application
for additional information regarding our products, please visit cadeka at: cadeka.com cadeka, the cadeka logo design, comlinear, and the comlinear logo design ar e trademarks or registered trademarks of ca - deka microcircuits llc. all other brand and product names may be trademarks of their respective companies. cadeka reserves the right to make changes to any products and services herein at any time without notice. cadeka does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by cadeka; nor does the purchase, lease, or use of a product or service from cadeka convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of cadeka or of third parties. copyright ?2008-2010 by cadeka microcircuits llc. all rights reserved. cadeka headquarters loveland, colorado t: 970.663.5452 t: 877.663.5452 (toll free) data sheet c omlinear clc3800, clc3801 triple, standard defnition video amplifers rev 1c mechanical dimensions soic-8 package

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