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general description the max4079 filters and buffers video (ntsc/pal/dvb) and stereo audio signals from the mpeg decoder of a cable/satellite receiver, vcr/dvd player, or a tv to an external load. the max4079 has luma-chroma (y-c) and composite (cvbs) video inputs with one y-c and two cvbs outputs. all video inputs are ac-coupled with internal dc biasing on the chroma input and active clamps for the luma and composite. the max4079 video reconstruction filters have a 6mhz cutoff frequency and 50db attenuation at 27mhz. the filters are matched with flat group delay for standard- definition video. the video gain is fixed at +6db to drive a 75 back-terminated load (150 ) to unity gain. the video outputs can be either dc- or ac-coupled and are powered by a single +5v supply. the max4079 audio amplifiers have differential inputs for optimum performance, but can be used with single- ended sources with external biasing. the audio chan- nels have a fixed gain of +6db and deliver 2.6v rms output with a differential input of ?.85v. the audio amplifiers operate from a +9v to +12v single supply and feature an internal bias generator. an on-chip mixer also provides a mono output, with +3db gain, derived from the left and right audio channels. the max4079 is available in 24-pin tssop package, and is fully specified over the 0? to +70? commercial temperature range. the max4079 evaluation kit is available to help speed designs. applications satellite receivers cable receivers home theater systems dvd players av receivers televisions features ? integrated video reconstruction filters6mhz lowpass filter supports ntsc, pal, or dvb per itu-601 ? integrated video and audio amplifiers ? integrated video input clamps and biasing ? mono audio and cvbs output to drive external modulator ? +5v (video) and +9v to +12v (audio) single- supply operation ? differential/single-ended audio inputs ? 24-pin tssop package max4079 complete audio/video backend solution ________________________________________________________________ maxim integrated products 1 ordering information 19-3780; rev 1; 3/09 evaluation kit available part temp range pin-package max4079cug+ 0? to +70? 24 tssop + denotes lead(pb)-free package. functional diagram lp filter clamp bias network clamp rinp rinn linp linn cin cvbsin yin cout cvbsout1 cvbsout2 rout1 rout2 mono lout1 lout2 gvid gaud vvid audv rext cbypass +3db +6db +6db +6db +6db +6db +6db +6db +6db yout lp filter lp filter max4079 pin configuration appears at end of data sheet. for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com.
max4079 complete audio/video backend solution 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. gvid to gaud.......................................................-0.1v to +0.1v vvid to gvid ............................................................-0.3v to +6v audv to gaud ......................................................-0.3v to +14v linp, linn, rinp, rinn, cbypass to gaud .........-0.3v to +6v lout1, lout2, rout1, rout2, mono to gaud ......-0.3v to lower of (+9v and audv + 0.3v) yin, cin, cvbsin, rext to gvid.............-0.3v to (vvid + 0.3v) yout, cout, cvbsout1, cvbsout2 to gvid.......................................................-0.3v to (vvid + 0.3v) video output short-circuit duration to gvid or vvid ........................................................................continuous audio output short-circuit duration to gaud or audv.......................................................................continuous continuous power dissipation (t a = +70?) 24-pin tssop (derate 12.2mw/? above +70?) .....975.6mw operating temperature range...............................0? to +70? storage temperature range .............................-65? to +150? junction temperature ......................................................+150? lead temperature (soldering, 10s) .................................+300? dc electrical characteristics (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r load_vid = 150 to gvid, r rext = 10k ?%, c cbypass = 1?, t a = 0? to +70?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units supplies audio supply voltage range audv 8.5 12.6 v video supply voltage range vvid 4.75 5.0 5.25 v video quiescent supply current i ccv v vvid = 5.25v, no load, all video inputs ac-coupled to ground 60 100 ma audio quiescent supply current i cca v audv = 12.6v, no load, audio inputs biased at 2.5v 815ma thermal shutdown t sd rising die temperature +150 ? thermal-shutdown hysteresis t sd , hys 25 ? video voltage gain a v,vid v in = 1v p-p , all video inputs, no load 5.8 6 6.2 db gain matching a v , vid v in = 1v p-p , all video inputs, no load -0.4 +0.4 db yin, cvbsin 0 1.2 input voltage swing v in,vid cin 0 0.9 v p-p clamp voltage v clmp cvbsout_ and yout, no signal, no load 1.0 v chroma bias v bias cout, no signal, no load 2.1 v droop d (note 2) 2 % rext reference voltage v rext 0.85 1.00 1.15 v cvbsin or yin 2.3 m input resistance r in,vid cin 10 k input clamping current i clmp cvbsin or yin input, v in = 3.5v 1 2.5 4 a cvbsout_, yout 2.4 output voltage swing v out , vid cout 1.8 v p-p short-circuit current i sc,vid video output shorted to vvid or gvid 50 ma yout/cout 48 power-supply rejection ratio psrr vid 4.75v v vvid 5.25v cvbsout_ 48 db
max4079 complete audio/video backend solution _______________________________________________________________________________________ 3 dc electrical characteristics (continued) (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r load_vid = 150 to gvid, r rext = 10k ?%, c cbypass = 1?, t a = 0? to +70?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units audio voltage gain a v,aud 1.414v p-p differential input 5.8 6 6.2 db mono voltage gain a v , mono 1.414v p-p differential input, l in = r in 2.8 3 3.2 db gain matching between channels a v , aud 1.414v p-p differential input -0.4 +0.4 db input voltage range v in , aud inferred from cmrr test 0.3 5.2 v differential input voltage range v in , aud dif inferred from output voltage swing -1.85 +1.85 v input current i in,aud 2a output voltage swing v out , aud input overdriven, 10k load to 4.15v 7.4 v p-p short-circuit current i sc , aud 15 ma power-supply rejection ratio psrr aud 8.5v v audv 12.6v 70 db common-mode rejection ratio cmrr aud 0.3v v cm 5.2v 50 60 db ac electrical characteristics (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid, c out _ audio = 10?, r load_aud = 10k ?% to gaud, r rext = 10k , c cbypass = 1?, t a = 0? to +70?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units video f = 4mhz -0.5 +0.5 f = 7mhz 3 filter attenuation a video cvbsout1 = cvbsout2 = yout = cout = 2v p-p ; r l = 150 to ground, attenuation is referred to 100khz f = 27mhz 40 50 db slew rate sr v out = 2v p-p 30 v/? differential gain dg cvbsout_, yout, cout, 5-step modulated staircase 0.5 % differential phase dp cvbsout_, yout, cout, 5-step modulated staircase 0.9 degrees yout/cout 48 power-supply rejection ratio psrr vid f = 100khz, 0.5v p-p cvbsout_ 44 db peak signal to rms noise snr vid cvbsout_, yout, cout, v in = 1v p-p 65 db group delay deviation gd cvbsout_, yout, cout, f in = 0.1mhz to 4.5mhz 25 ns output impedance z out,vid f = 3.58mhz 0.5 capacitive load c l,vid no sustained oscillations 35 pf video crosstalk x talk,vid f = 3.58mhz, 1v p-p input, between any two active inputs -63 audio/video crosstalk x talk , vd/ad f = 15khz, 1v p-p input, between any two active audio or video inputs -76 db
max4079 complete audio/video backend solution 4 _______________________________________________________________________________________ ac electrical characteristics (continued) (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid, c out _ audio = 10?, r load_aud = 10k ?% to gaud, r rext = 10k , c cbypass = 1?, t a = 0? to +70?, unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units audio lout_, rout_, f in = 20hz to 20khz, 0.5v rms input 0.01 gain flatness a aud mono, f in = 20hz to 20khz, 0.5v rms input 0.01 db signal-to-noise ratio snr aud f in = 1.0khz, 0.5v rms , ccir weighing highpass filter at 20hz, lowpass filter at 20khz 85 db f in = 1.0khz, 0.5v rms 0.005 total harmonic distortion plus noise thd+n f in = 1.0khz, 1v rms 0.003 % output impedance z o,aud f = 1khz 0.2 ? power-supply rejection ratio psrr aud , ac f = 1khz, v ripple = 200mv p-p 60 db crosstalk x tlk,aud f = 1khz, 0.5v rms input 70 db capacitive load c l,aud no sustained oscillations 200 pf note 1: all devices are 100% production tested at t a = +25?. specifications over temperature limits are guaranteed by design. note 2: droop is defined as the percentage change in the dc level from the start to the end of a video line. inferred from input clamping current with a 0.1? coupling capacitor. chroma large-signal bandwidth max4079 toc01 frequency (mhz) response (db) 10 1 -70 -60 -50 -40 -30 -20 -10 0 10 -80 0.1 100 v in = 1v p-p luma large-signal bandwidth max4079 toc02 frequency (mhz) response (db) 10 1 -70 -60 -50 -40 -30 -20 -10 0 10 -80 0.1 100 v in = 1v p-p cvbsout_ large-signal bandwidth max4079 toc03 frequency (mhz) response (db) 10 1 -70 -60 -50 -40 -30 -20 -10 0 10 -80 0.1 100 v in = 1v p-p typical operating characteristics (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid , c out _ audio = 10?, r load_aud = 10k to g aud , r rext = 10k , c bypass = 1?, t a = +25?, unless otherwise noted.)
max4079 complete audio/video backend solution _______________________________________________________________________________________ 5 video crosstalk (cvbsout_ to yin) max4079 toc04 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p video crosstalk (cvbsout_ to cin) max4079 toc05 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p video crosstalk (cout to cvbsin) max4079 toc06 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p video crosstalk (cout to yin) max4079 toc07 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p video crosstalk (yout to cvbsin) max4079 toc08 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p video crosstalk (yout to cin) max4079 toc09 frequency (mhz) response (db) 10 1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.1 100 v in = 1v p-p cvbsout_ group delay max4079 toc10 frequency (mhz) delay (ns) 1 10 20 30 40 50 60 70 80 90 100 0 0.1 10 chroma group delay max4079 toc11 frequency (mhz) delay (ns) 1 10 20 30 40 50 60 70 80 90 100 0 0.1 10 yout group delay max4079 toc12 frequency (mhz) delay (ns) 1 10 20 30 40 50 60 70 80 90 100 0 0.1 10 typical operating characteristics (continued) (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid , c out _ audio = 10?, r load_aud = 10k to g aud , r rext = 10k , c bypass = 1?, t a = +25?, unless otherwise noted.)
max4079 complete audio/video backend solution 6 _______________________________________________________________________________________ typical operating characteristics (continued) (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid , c out _ audio = 10?, r load_aud = 10k to g aud , r rext = 10k , c bypass = 1?, t a = +25?, unless otherwise noted.) differential gain max4079 toc13 differential phase (deg) 13 245 6 7 13 245 6 7 0.2 0.1 0 -0.1 -0.2 differential gain (%) 0.2 0.1 0 -0.1 -0.2 differential phase audio large-signal bandwidth max4079 toc14 frequency (khz) response (db) 10 1 0.1 2.8 2.9 3.0 3.1 3.2 3.3 2.7 0.01 100 mono channel v in = 0.5v rms audio large-signal bandwidth max4079 toc15 frequency (khz) response (db) 10 1 0.1 5.5 6.0 6.5 7.0 5.0 0.01 100 right channel v in = 0.5v rms audio large-signal bandwidth max4079 toc16 frequency (khz) response (db) 10 1 0.1 5.5 6.0 6.5 7.0 5.0 0.01 100 left channel v in = 0.5v rms audio crosstalk max4079 toc17 frequency (khz) response (db) 10 1 0.1 -110 -100 -90 -80 -70 -60 -50 -40 -120 0.01 100 left to right channel right to left channel v in = 0.5v rms total harmonic distortion plus noise ratio (left channel) max4079 toc18 frequency (khz) thd+n (%) 10 1 0.1 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.010 0.001 0.01 100 v in = 1v rms v in = 0.5v rms
typical operating characteristics (continued) (v vvid = +5v, v audv = +12v, v gvid = v gaud = 0v, r in_video = 75 to gvid, c in_video = 0.1?, r load_vid = 150 to gvid , c out _ audio = 10?, r load_aud = 10k to g aud , r rext = 10k , c bypass = 1?, t a = +25?, unless otherwise noted.) max4079 complete audio/video backend solution _______________________________________________________________________________________ 7 2.0 2.9 2.6 2.3 3.2 3.5 0 10203040506070 input clamp current vs. temperature max4079 toc22 temperature ( c) input clamp current ( a) yin cvbsin v in = 3.5v input clamp current vs. input voltage max4079 toc23 input voltage (v) input clamp current ( a) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 10 100 1000 10,000 1 0 5.0 cvbsin yin sinking sourcing 0.7 0.8 1.0 0.9 1.1 1.2 1.3 020 10 30 40 50 60 70 output bias voltage vs. temperature max4079 toc24 temperature ( c) output bias voltage (v) cvbsout_ yout 1.5 1.7 2.1 1.9 2.3 2.5 020 10 30 40 50 60 70 output bias voltage vs. temperature max4079 toc25 temperature ( c) output bias voltage (v) cout 55 58 57 56 60 59 64 63 62 61 65 0 10203040506070 video supply current vs. temperature max4079 toc20 temperature ( c) video supply current (ma) 5.0 6.0 5.5 7.0 6.5 8.5 8.0 7.5 9.0 020 10 30 40 50 60 70 audio supply current vs. temperature max4079 toc21 temperature ( c) audio supply current (ma) total harmonic distortion plus noise ratio (right channel) max4079 toc19 frequency (khz) thd+n (%) 10 1 0.1 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.010 0.001 0.01 100 v in = 1v rms v in = 0.5v rms
max4079 detailed description the max4079 filters and buffers video (ntsc/pal/dvb) and stereo audio signals from the mpeg decoder of a cable/satellite receiver, vcr/dvd player, or a tv to an external load. the max4079 has luma-chroma (y-c) and composite (cvbs) video inputs with one y-c and two cvbs outputs. all video inputs are ac-coupled with internal dc biasing on the chroma input and active clamps for the luma and composite. the max4079 video reconstruction filters have a 6mhz cutoff frequency and 50db attenuation at 27mhz. the filters are matched, with flat group delay for standard- definition video. the video gain is fixed at +6db to drive a 75 back-terminated load (150 ) to unity gain. the video outputs can be either dc- or ac-coupled and are powered by a single +5v supply. the max4079 audio amplifiers have differential inputs for optimum performance, but can be used with single- ended sources with external biasing. the audio chan- nels have a fixed gain of +6db and deliver 2.6v rms output with a differential input of ?.85v. the audio amplifiers operate from a +9v to +12v single supply and feature an internal bias generator. an on-chip mixer also provides a mono output, with +3db gain, derived from the left and right audio channels. video the video section of the max4079 implements dc restore/biasing, amplification, and reconstruction filter- ing for the y-c and cvbs input signals. all of the video inputs are ac-coupled. dc restore is performed using a sync tip clamp for both luma and composite video channels. the chroma dc level input is biased at the midlevel of the signal. all video channels have a fixed gain of +6db. the dc level at the video outputs is controlled so that coupling capacitors are not required. all composite and luma video outputs are capable of driving 2.4v p-p , and the chroma output is capable of driving 1.8v p-p into 150 resistive load to ground. up to 35pf of load capacitance can be tolerated at each video output without stability or slew-rate issues. complete audio/video backend solution 8 _______________________________________________________________________________________ pin description pin name function 1 rext external filter resistor. bypass with a 10k ?% resistor and a 0.1? capacitor to gvid. 2, 24 vvid video power-supply input 3 cvbsin composite video input 4, 21 gvid video ground 5 yin luma input 6 cbypass audio ldo regulator bypass capacitor. bypass with a1? capacitor to gaud. 7 cin chroma input 8 audv audio power-supply input 9 linp left-channel audio positive input 10 linn left-channel audio negative input 11 rinn right-channel audio negative input 12 rinp right-channel audio positive input 13 rout2 right-channel audio output 2 14 rout1 right-channel audio output 1 15 gaud audio ground 16 mono mono audio output 17 lout2 left-channel audio output 2 18 lout1 left-channel audio output 1 19 cout chroma video output 20 yout luma video output 22 cvbsout1 composite video output 1 23 cvbsout2 composite video output 2
all video inputs are stable with up to 150 source resis- tance. for higher values, consult maxim applications. video reconstruction filter the max4079 reconstruction filters are 4th-order butterworth filters that provide a cutoff frequency of 6mhz and flat group delay response up to 4.5mhz. the stopband offers 26db of attenuation at 13.5mhz and 50db at 27mhz. audio the audio section of the max4079 is a stereo amplifier with one differential input and two single-ended outputs for each channel (left and right). a mono output is pro- vided by summing the two channels of the stereo signal together. the stereo channels have a +6db typical gain, while the mono has a +3db gain. the audio inputs can be dc-coupled, eliminating space- consuming coupling capacitors. each of the five outputs can deliver 2.6v rms into an ac-coupled 10k load. applications information audio dac interfacing differential audio dac the max4079 accepts differential audio signals. figure 1 shows a typical configuration for connecting the device to an audio dac with differential outputs. figure 2 shows the reconstruction filters that can be used for the differential audio inputs. carefully select resistors and capacitors to attenuate out-of-band noise and mini- mize the effect on the gain. the common-mode voltage for these signals is typically 2.5v. single-ended audio dac the max4079 can also be configured for single-ended inputs. figure 3 shows how to connect an audio dac with single-ended outputs to the max4079. figure 4 shows how reconstruction filters can be used for single-ended audio inputs. choose these values to minimize the effect on gain. if the single-ended audio dac does not include a com- mon-mode voltage output, create a bias point with well- matched resistors and couple the audio signal to the positive differential input (see figure 5). the bias point can also be created using a resistor-divider network from the video supply voltage. note that the tolerance of the resistors will affect the common-mode and power- supply rejection ratios. tighter tolerances improve the per- formance of cmrr and psrr, e.g., 1% resistors will not give any better than 40db of cmrr and psrr, whereas 0.1% resistors could improve the number to 60db. power supplies and bypassing the max4079 features single +5v (video) and +12v (audio) supply operation, and requires no negative supply. connect the vvid pins together and bypass to gvid with 0.01?, 0.1?, and 4.7? capacitors in paral- lel. bypass the audv to gaud with 0.1?, 1?, and 47? capacitors in parallel. bypass cbypass to gaud with a 1? capacitor (see the typical operating circuit ). max4079 complete audio/video backend solution _______________________________________________________________________________________ 9 rinp rinn linp linn left audio channel right audio channel +5v a outl+ a outl- a outr+ a outr- audio dac max4079 figure 1. differential audio inputs max4079 r2 c2 r2 a outl+ a outl- linp linn r1 r1 c1 c2 figure 2. filtering differential audio inputs
max4079 complete audio/video backend solution 10 ______________________________________________________________________________________ rinp rinn linp linn left audio channel right audio channel +5v a outl a outr audio dac max4079 ~2.5v v cm figure 3. single-ended audio inputs max4079 r1 c1 r1 a outl v cm linp linn figure 4. filtering single-ended audio inputs rinp rinn linp linn left audio channel right audio channel max4079 r r r r r r r r a outl a outr v bias v bias figure 5. biasing single-ended audio inputs 40 s/div input output figure 6. vertical sync interval layout and grounding for optimal performance, stitch ground vias between the narrow adjacent signal traces to minimize crosstalk. avoid running video traces parallel to high-speed data lines. the max4079 provides separate ground connections for video and audio supplies. for best performance use separate ground planes for each of the ground returns, and connect all ground planes together at a single point. refer to the max4079 evaluation kit for a proven circuit board layout example.
max4079 complete audio/video backend solution ______________________________________________________________________________________ 11 1 f 10k 10k 10k 10 f 10 f 10 f 10 f 10 f 10k 10k 75 75 75 75 z 0 = 75 z 0 = 75 z 0 = 75 z 0 = 75 330 f 330 f 330 f 330 f 0.1 f 1 f 47 f +12v audio supply 0.01 f 0.1 f 4.7 f +5v video supply 0.1 f 0.1 f 0.1 f 75 75 75 rinp rinn linp linn 0.1 f 10k 75 75 75 75 audv gaud yout cout cvbsout1 cvbsout2 rout1 rout2 mono lout1 cbypass lout2 *optional capacitors (typical values shown) vvid vvid gvid gvid yin yin cin cin cvbsin cvbsin rinp rinn linp linn rext max4079 typical operating circuit
max4079 complete audio/video backend solution 12 ______________________________________________________________________________________ 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 vvid cvbsout2 cvbsout1 gvid gvid cvbsin vvid rext top view yout cout lout1 lout2 audv cin cbypass yin 16 15 14 13 9 10 11 12 mono gaud rout1 rout2 rinp rinn linn linp tssop max4079 + pin configuration chip information process: bicmos
max4079 complete audio/video backend solution ______________________________________________________________________________________ 13 max4079 tssop4.40mm.eps package type package code document no. 24 tssop u24+1 21-0066 package information for the latest package outline information and land patterns, go to www.maxim-ic.com/packages .
max4079 complete audio/video backend solution 14 ______________________________________________________________________________________ soicw.eps package outline, .300" soic 1 1 21-0042 b rev. document control no. approval proprietary information title: top view front view max 0.012 0.104 0.019 0.299 0.013 inches 0.291 0.009 e c dim 0.014 0.004 b a1 min 0.093 a 0.23 7.40 7.60 0.32 millimeters 0.10 0.35 2.35 min 0.49 0.30 max 2.65 0.050 0.016 l 0.40 1.27 0.512 0.496 d d min dim d inches max 12.60 13.00 millimeters min max 20 ac 0.447 0.463 ab 11.75 11.35 18 0.398 0.413 aa 10.50 10.10 16 n ms013 side view h 0.419 0.394 10.00 10.65 e 0.050 1.27 d 0.614 0.598 15.20 24 15.60 ad d 0.713 0.697 17.70 28 18.10 ae h e n d a1 b e a 0-8 c l 1 variations: package information (continued) for the latest package outline information and land patterns, go to www.maxim-ic.com/packages .
max4079 complete audio/video backend solution heaney maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 15 2009 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 0 8/05 initial release 1 3/09 changes to remove so package, style edits 1?, 12, 13, 14

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