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www.fairchildsemi.com rev. 3a august 2004 features 5v ?0% operation rgb/yuv ?ters for atsc digital television vesa standard 2:1 mux inputs for multiple rgb/yuv inputs triple reconstruction filter options for 6.7, 12, 24, 30, and 36mhz to handle various line rates multiple ml6426 outputs can be paralleled to drive rgb/ yuv outputs at different frequencies for various line rates by means of disable/enable pin. 6db drivers and sync tip clamps for dc restore dc restore with minimal tilt 0.4% differential gain on all channels 0.4?differential phase on all channels 0.8% total harmonic distortion on all channels 2kv esd protection general description the ml6426 are a family of triple video ?ters with buffered outputs. there are several versions of the ml6426, each with different passband cut-off frequencies of 6.7mhz, 12mhz, 24mhz, 30mhz, and 36mhz. each channel contains a 4 th - order butterworth lowpass reconstruction video ?ter. the ?ter is optimized for minimum overshoot and ?t group delay and guaranteed differential gain and phase at the out- puts of the integrated cable drivers. all input signals from dacs are ac coupled into the ml6426. all channels have dc restore circuitry to clamp the dc input levels during video h-sync, using an output feed- back clamp. an external h-sync signal is required for this purpose. all outputs must be ac coupled into their loads. each output can drive 2v p-p into a 150 ? load. all channels have a gain of 2 (6db) at 1v p-p input levels. block diagram ml6426-1 ml6426-2 ml6426-3 ml6426-4 ml6426-5 ML6426-15 filter a 6.7mhz 12mhz 24mhz 30mhz 36mhz 15mhz filter b 6.7mhz 12mhz 24mhz 30mhz 36mhz 15mhz filter c 6.7mhz 12mhz 24mhz 30mhz 36mhz 15mhz r in a/y in a 2 r in b/y in b b in a/v in a 8 b in b/v in b 9 a/b mux g in a/u in a 6 g in /u in b 7 r out /y out 13 g out /u out 11 b out /v out 10 4th-order filter a 4th-order filter b 4th-order filter c mux mux mux 2 2 2 transconductance error amp transconductance error amp transconductance error amp 1 syncin 16 gndo 14 disable 15 v cco 12 v cc 4 gnd 3 5 + + + 0.5v 0.5v 0.5v ml6426 high bandwidth triple video filters with buffered outputs for rgb or yuv
ml6426 data sheet 2 rev. 3a august 2004 pin con?uration pin description pin name function 1 a/b mux logic input pin to select between bank and bank video inputs . this pin is internally pulled high. 2r in a/y in a unfiltered analog r- or y-channel input for bank . sync must be provided at sync in pin. 3 gnd analog ground 4v cc analog 5v supply 5r in b/y in b unfiltered analog r- or y-channel input for bank . sync must be provided at sync in pin. 6g in a/u in a unfiltered analog g- or u-channel input for bank . sync must be provided at sync in pin. 7g in b/u in b unfiltered analog g- or u-channel input for bank . sync must be provided at sync in pin. 8b in a/v in a unfiltered analog b- or v-channel input for bank . sync must be provided at sync in pin. 9b in b/v in b unfiltered analog b- or v-channel input for bank . sync must be provided at sync in pin. 10 b out analog b or v-channel output 11 g out analog g or u-channel output 12 v cco 5v power supply for output buffers 13 r out analog r or y-channel output 14 gndo analog ground 15 disable disable/enable pin . turns the chip off when logic high. internally pulled low. 16 sync in input for an external h-sync logic signal for filter channels . cmos level input. active high. ml6426 16-pin narrow soic (s16n) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 top view a/b mux r in a/y in a gnd v cc r in b/y in b g in a/u in a g in b/u in b b in a/v in a sync in disable gndo r out /y out v cco g out /u out b out /v out b in b/v in b
data sheet ml6426 rev. 3a august 2004 3 absolute maximum ratings absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. operating conditions parameter min. max. unit v cc ?.3 7 v junction temperature 150 ? esd >2000 v analog and digital i/o gnd ?0.3 v cc + 0.3 v storage temperature range ?5 150 ? lead temperature (soldering, 10 sec) 260 ? thermal resistance ( ja ) 100 ?/w parameter min. max. unit temperature range 0 70 c v cc range 4.5 5.5 v electrical characteristics unless otherwise speci?d, v cc = 5v?0%, t a = operating temperature range (note 1) symbol parameter conditions min typ max units general i cc supply current no load (v cc = 5.5v) 52 80 ma a v low frequency gain (r, g, b) v in = 100mv p-p at 100khz 5.34 6.0 6.65 db v out output level during sync (r, g, b,) output capability during sync 0.7 0.9 1.2 v rl = 150 ? , ac-coupled@1mhz 2 v p-p t clamp clamp response time settled to within 10mv, c in = 0.1? 10 ms v i input signal dynamic range (r, g, b,) ac coupled 1.4 v p-p os peak overshoot (r, g, b,) 2v p-p output pulse 4.3 % c l output load capacitance (r, g, b,) all outputs 35 pf output load drive capability, per pin (yuv or rgb outputs) one load is 150 ? 2 loads dg differential gain (r, g, b,) all outputs at f c /2 0.4 % d differential phase (r, g, b,) all outputs at f c /2 0.4 t hd output distortion (r, g, b,) v out = 2v p-p at 1 mhz 0.8 % psrr psrr (r, g, b,) 0.5v p-p (100khz) at v cc 35 db i sc output short circuit current (r, g, b,) note 2 120 ma v ih input voltage logic high disable, sync in 2.5 v v il input voltage logic low disable, sync in 1.0 v t mux input mux data valid time a/b mux pin valid high or low 2s
ml6426 data sheet 4 rev. 3a august 2004 6.7mhz filter: ml6426-1 f 1db ?db bandwidth flatness (r, g, b,) 25? 4.0 4.8 mhz f c ?db bandwidth flatness (r, g, b,) 25? 6.0 6.7 mhz f 0.8fc 0.8 x f c attenuation 1.5 db f sb stopband rejection (all channels 4 f c ) f in 4 fc, note 3 ?8 ?2 db noise output noise (r, g, b,) fullband 1.0 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels ?5 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz ?4 db t pd group delay (r, g, b,) 100khz 70 ns ? t pd group delay deviation from flatness (r, g, b,) to 3.58mhz 4.0 ns to 4.43mhz 8.0 ns to 10mhz 9 ns 12mhz filter: ml6426-2 f 1db ?db bandwidth flatness (r, g, b,) 25? 7.8 9.2 mhz f c ?db bandwidth flatness (r, g, b,) 25? 10.8 12 mhz f 0.8fc 0.8 x f c attenuation 1.2 db f sb stopband rejection (all channels 4 f c ) f in 4 f c , note 3 ?0 db noise output noise (r, g, b,) fullband 1 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels ?5 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz ?4 db t pd group delay (r, g, b,) 100khz 40 ns ? t pd group delay deviation from flatness (r, g, b,) to 3.58mhz 1 ns to 4.43mhz 1 ns to 10mhz 7 ns 24mhz filter: ml6426-3 f 1db ?db bandwidth flatness (r, g, b,) 25? 13.6 16 mhz f c ?db bandwidth flatness (r, g, b,) 25? 21.6 24 mhz f 0.8fc 0.8 x f c attenuation 1.7 db f sb stopband rejection (all channels 4 f c ) f in 4 f c , note 3 ?0 db noise output noise (r, g, b,) fullband 1.0 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels ?5 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz -54 db t pd group delay (r, g, b,) 100khz 22 ns ? t pd group delay deviation from flatness (r, g, b,) to 3.58mhz 1 ns to 4.43mhz 1 ns to 10mhz 2 ns electrical characteristics (continued) unless otherwise speci?d, v cc = 5v?0%, t a = operating temperature range (note 1) symbol parameter conditions min typ max units
data sheet ml6426 rev. 3a august 2004 5 notes 1. limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions. 2. sustained short circuit protection limited to 10 seconds. 3. 38db is based on tester noise limits. 30mhz filter: ml6426-4 f 1db ?db bandwidth flatness (r, g, b,) 25? 15.3 18 mhz f c ?db bandwidth flatness (r, g, b,) 25? 27 30 mhz f 0.8fc 0.8 x f c attenuation 1.7 db f sb stopband rejection (all channels 4 f c ) f in 4 f c , note 3 -40 db noise output noise (r, g, b,) fullband 1.0 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels -55 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz -54 db t pd group delay (r, g, b,) 100khz 18 ns ? t pd group delay deviation from flatness (r, g, b,) to 10mhz 0.5 ns to 27mhz 2 ns 36mhz filter: ml6426-5 f 1db ?db bandwidth flatness (r, g, b,) 25? 17 20 mhz f c ?db bandwidth flatness (r, g, b,) 25? 32.4 36 mhz f 0.8fc 0.8 x f c attenuation 2 db f sb stopband rejection (all channels 4 f c ) f in 4 f c , note 3 ?0 db noise output noise (r, g, b,) fullband 1.0 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels ?5 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz ?4 db t pd group delay (r, g, b,) 100khz 17 ns ? t pd group delay deviation from flatness (r, g, b,) to 10mhz 0.5 ns to 30mhz 4 ns 15mhz filter: ML6426-15 f 1db ?db bandwidth flatness (r, g, b,) 25? 10.8 12.2 mhz f c ?db bandwidth flatness (r, g, b,) 25? 13.8 15 mhz f 0.8fc 0.8 x f c attenuation 1.2 db f sb stopband rejection (all channels 4 f c ) f in 4 f c , note 3 ?0 db noise output noise (r, g, b,) fullband 1.0 mv rms x talk crosstalk input of 0.5v p-p at 1 mhz between any two channels ?5 db x talk a/b mux crosstalk input of 0.5v p-p at 3.58/4.43mhz ?4 db t pd group delay (r, g, b,) 100khz 40 ns ? t pd group delay deviation from flatness (r, g, b,) to 3.58mhz 1 ns to 4.43mhz 1 ns to 10mhz 9 ns electrical characteristics (continued) unless otherwise speci?d, v cc = 5v?0%, t a = operating temperature range (note 1) symbol parameter conditions min typ max units
ml6426 data sheet 6 rev. 3a august 2004 functional description the ml6426 is a triple monolithic continuous time video ?ter designed for reconstructing video signals from an yuv/rgb video d/a source. the ml6426 is intended for use in ac coupled input and output applications. the ?ters approximate a 4th-order butterworth characteris- tic with an optimization toward low overshoot and ?t group delay. all outputs are capable of driving 2v p-p into ac coupled 150 ? video loads, with up to 35pf of load capaci- tance. all outputs are capable of driving a 75 ? load at 1v p-p . all channels are clamped during sync to establish the appro- priate output voltage swing range (dc restore). thus the input coupling capacitors do not behave according to the conventional rc time constant. in most applications, the ml6426's input coupling capacitors are only 0.1?. an external cmos compatible hsync pulse is required which is active high on the sync in pin. see figure 2. during sync, the feedback clamp sources/sinks current to restore the dc level. the net result is that the average input current is zero. any change in the input coupling capacitors' value will linearly affect the clamp response times. each channel is essentially tilt-free. each input is clamped by a feedback amp which responds to the output during sync. the ml6426 is robust and stable under all stated load and input conditions. bypassing both v cc pins directly to ground ensures this performance. figure 1. typical application schematic figure 2. sync in pulse width r in 5v 5v r g 0.1 f 220 f 75 ? g in 0.1 f 220 f 75 ? b 220 f 75 ? b in sync in 0.1 f r in a/y in a 2 r in b/y in b b in a/v in a 8 b in b/v in b 9 a/b mux g in a/u in a 6 g in b/u in b 7 r out /y out 13 g out /u out 11 b out /v out 10 4th-order filter a 4th-order filter b 4th-order filter c mux mux mux 2 2 2 transconductance error amp transconductance error amp transconductance error amp 1 syncin 16 gndo 14 disable 15 v cco 12 v cc 4 gnd 3 5 + + + 0.5v 0.5v 0.5v active high v il = 1.0v 50% x v sync in v ih = 2.5v pw min = 2 s
data sheet ml6426 rev. 3a august 2004 7 typical applications reconstruction ?ter selection for hdtv and vga signal ?tering the ?tering requirements for hdtv and vga standards vary depending on the resolution of the image to be dis- played, and its refresh rate. the actual refresh rate of the dis- play is not necessarily the same as the transmission rate of the frames of images. some formats use a frame rate of 30hz, but the display of those formats cannot be scanned onto the crt at 30hz. excessive large area ?cker would result. such kinds of ?cker can be seen on a pal display with its brightness set high. to avoid this, the video will need to be stored in a frame buffer. this buffer already exists in the mpeg decoder of hdtv systems, so there is no cost penalty. the buffer is read out at twice the rate as the frame rate for 30hz systems, thus getting us a refresh rate of 60hz. similar things are done for the 24hz frame rate formats to boost them to a 60hz refresh rate. table 1. hdtv / advanced tv applications: (from table 10.3 from atsc document a54) p=progressive scan, i=interlaced scan table 2. choosing the correct reconstruction filter and video amplifier for tv applications, ml6426 options p=progressive scan, i=interlaced scan, na = not available notes 1. ntsc display rates, can be fed directly into ntsc encoder (set top box) 2. 60 hz also includes 59.94hz 3. custom frequencies ranging ?3 to 6mhz can be special cut to order pixels vertical lines aspect ratio picture transmission rate 1920 1080 16:9 60i, 30p, 24p 1280 720 16:9 60p, 30p, 24p 704 480 16:9 and 4:3 60p, 60i, 30p, 24p 640 480 4:3 60p, 60i, 30p, 24p standard pixels vertical lines picture transmission rate (note 2) display refresh rate (note 2) approximate horizontal rate approximate sample clock approximate reconstruction filter cutoff fairchild filter to use (note 3) 1920 1080 30p, 24p 60hz 70.6khz 162mhz 81mhz n/a smpte 1280 720 60p, 30p, 24p 60hz 47.1khz 60mhz 30mhz ml6426-5 ml6426-4 704 480 (note 1) 60i 60hz 15.7khz 13.5mhz 6.75mhz ml6426-1 704 480 60p, 30p, 24p 60hz 31khz 27mhz 13.5mhz ml6426-2 ml6426-4 640 480 (note 1) 60i 60hz 15.7khz 24.5mhz 12mhz ml6426-2 640 480 60p, 30p, 24p 60hz 31khz 12.27mhz 6mhz ml6426-1
ml6426 data sheet 8 rev. 3a august 2004 pixel clock rates for the output d/a converters can be roughly determined from the table 1. dont forget that the de?ction system of a crt display needs retrace time for the vertical and horizontal. this retrace time can vary from one design of an hdtv set to another, as it only involves tradeoffs between the frame buffer in the mpeg decoder and the crt de?ction system. allowing for 10% retrace time for the vertical and 20% for the horizontal, the appropriate reconstruction filter is sum- marized in table 2. for vga or rgb monitors, the following resolutions can use the corresponding reconstruction filter and video ampli?r as shown in table 3. figures 4, 5, and 6 show system diagrams when the ml6426 provides a good solution. figure 7 provides a more detailed description for advanced tv applications using various reso- lutions for legacy video, sdtv, and hdtv. using the ml6426 in multiple resolutions several ml6426 devices can be used in parallel to construct a selectable ?ter selection block ranging from frequencies between 6.7 mhz to 50mhz. each ml6426 can be individu- ally controlled via the disable pin. in a parallel con?uration, as shown in figure 3 and 7, several ml6426 devices can be used and selected via general purpose i/o or other logic to perform the proper reconstruction ?tering for the resolution of choice. this con?uration allows for a minimum of bill of materials and reduces cost. fairchilds ml6426 eval kit demonstrates multi-resolution designs. furthermore, since the ml6426 pin-out is identical for all the options, the ?ters can be interchanged. this allows for ease of product migra- tion to integrate newer resolutions to ?ter and drive various dac outputs at different sampling frequencies. table 3. choosing the correct reconstruction filter and video amplifier for tv applications, ml6426 options n/a = not available pixels vertical lines name refresh rate (prog except noted) horizontal rate sample clock reconstruction filter cutoff fairchild filter to use 640 480 vga 60hz 31.5khz 25.175mhz 12.5mhz ml6426-2 vga 72hz 37.9khz 31.5mhz 15.5mhz ml6426-3 vga 75hz 37.5khz 31.5mhz 15.5mhz ml6426-3 800 600 svga 56hz 35.1khz 36mhz 18mhz ml6426-3 svga 60hz 37.9khz 40mhz 20mhz ml6426-3 svga 72hz 48.1khz 50mhz 25mhz ml6426-3 svga 75hz 46.9khz 49.5mhz 25mhz ml6426-3 1024 768 xga 43hz interlaced 35.5khz 44.9mhz 23mhz ml6426-3 xga 60hz 37.9khz 65mhz 33mhz ml6426-5 xga 70hz 56.5khz 75mhz 37.5mhz ml6426-5 1280 1024 sxga 75hz 80khz 135mhz 68mhz na sxga 60hz 113mhz 57mhz na 1600 1200 uxga 60hz 166mhz 83mhz na
data sheet ml6426 rev. 3a august 2004 9 figure 3. atsc digital television application y in /r in u in /g in 5v 13 11 10 12 4 14 3 v in /b in 15 2 5 6 7 8 9 16 1 13 11 10 12 4 14 3 15 2 5 6 7 8 9 16 1 13 11 10 12 4 14 3 15 2 5 6 7 8 9 16 1 sync in select logic general purpose i/o disable/enable lines 220 f 75 ? 220 f 75 ? 220 f 75 ? r/y g/u b/v 0.1 f 0.1 f 0.1 f ml6426-1 6.7mhz ml6426-5 36mhz ml6426-2 12mhz
ml6426 data sheet 10 rev. 3a august 2004 figure 4. digital tv receiver or hdtv decoder box figure 5. pc graphics/frame grabber editing card figure 6. pc mri, xray, ultrasound, ct scan from sat or cable ml6426 u v y d/a hdtv decoder and display processor graphic processor mpeg2 transport and decoder digital tv from camera vcr from dvd-rom or memory ycrcb digital cv s-video analog ml6426 u v y d/a rgb video decoder and display processor video encoder rgb monitor mri, xray, ultrasound, ct scan digital yuv analog ml6426 u v y medical imaging d/a dsp
data sheet ml6426 rev. 3a august 2004 11 figure 7. typical applications schematic r in a r in b gna gnb b in a b in b a/b mux sync in c 29 c 30 c 31 c 32 c 33 c 34 2 5 6 7 8 9 1 16 13 11 10 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f r out g out b out u3 ml6426-4 disable gndo gnd v cco v cc 15 14 3 12 4 c6 1 f c14 0.1 f c13 0.1 f c5 1 f r3 47k ? r in a r in b gna gnb b in a b in b a/b mux sync in c 23 c 24 c 25 c 26 c 27 c 28 2 5 6 7 8 9 1 16 13 11 10 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f r out g out b out u2 ml6426-3 disable gndo gnd v cco v cc 15 14 3 12 4 c4 1 f c12 0.1 f hysync in sw2 c11 0.1 f c3 1 f r2 47k ? r10 75 ? 0 1 r in a r in b c 17 c 18 2 5 13 11 10 0.1 f 0.1 f c 19 c 20 6 7 0.1 f 0.1 f c 21 c 22 8 9 1 16 0.1 f 0.1 f r out r11 75 ? r12 75 ? r13 75 ? r out/ y out u1 ml6426-1 disable gndo gnd 15 14 3 r1 47k ? r in a r in b gna gnb b in a b in b a/b mux sync in c 35 c 36 c 37 c 38 c 39 c 40 2 5 6 7 8 9 1 16 13 11 10 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f r out g out b out ux ml6426-x disable gndo gnd v cco v cc 15 14 3 12 4 c8 1 f c16 0.1 f c15 0.1 f c7 1 f r4 47k ? b in b/v in b 4th order filter g in a g in b g out 4th order filter b in a b in b b out 4th order filter sync in a/b mux v cco v cc 12 4 c2 1 f c10 0.1 f c9 0.1 f c1 1 f fb2 5v gnd gnd fb1 c 41 220 f g out/ u out c 42 220 f b out/ v out c 43 220 f 2 3 4 1 3 5 7 2 jp1 swi 4 6 8 r9 75 ? b in a/v in a r8 75 ? g in b/u in b r7 75 ? g in a/u in a r6 75 ? r in b/y in b r5 75 ? r in a/y in a
ml6426 data sheet 12 rev. 3a august 2004 performance data figure 8. passband flatness all outputs (normalized) 6.7 mhz, ml6426cs-1 figure 9. passband flatness all outputs (normalized) 12 mhz, ml6426cs-2 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 amplitude (db) frequency (mhz) 0.01 1 100 0.1 10 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 amplitude (db) frequency (hz) 10k 100k 1m 10m 100m 1g figure 10. passband flatness all outputs (normalized) 24 mhz, ml6426cs-3 figure 11. passband flatness all outputs (normalized) 30 mhz, ml6426cs-4 amplitude (db) frequency (mhz) 1m 10m 100m 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 amplitude (db) frequency (mhz) 1m 10m 100m 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 figure 12. passband flatness all outputs (normalized) 36mhz, ml6426cs-5 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 amplitude (db) frequency (hz) 100k 1m 10m 100m 1g
data sheet ml6426 rev. 3a august 2004 13 figure 13. frequency response all outputs ml6426-cs-1 figure 14. group delay deviation of passband, all outputs ml6426cs-1 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?00 amplitude (db) frequency (mhz) 04080 100 20 60 30 70 90 10 50 12 10 8 6 4 2 0 ? ? ? ? group delay deviation (ns) frequency (mhz) 0 2.8 5.6 7.0 1.4 4.2 2.1 4.9 6.3 0.7 3.5 figure 15. group delay deviation all band, all outputs ml6426cs-1 figure 16. frequency response all outputs ml6426cs-2 14 12 10 8 6 4 2 0 ? ? ? group delay deviation (ns) frequency (mhz) 04080 100 20 60 30 70 90 10 50 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?00 amplitude (db) frequency (mhz) 04080 100 20 60 30 70 90 10 50 figure 17. group delay deviation of passband, all outputs ml6426cs-2 figure 18. group delay deviation all band, all outputs ml6426cs-2 10 8 6 4 2 0 ? ? ? ? ?0 group delay deviation (ns) frequency (mhz) 048 10 26 379 15 12 10 8 6 4 2 0 ? ? ? ? group delay deviation (ns) frequency (mhz) 04080 100 20 60 30 70 90 10 50
ml6426 data sheet 14 rev. 3a august 2004 figure 19. frequency response all outputs ml6426cs-3 figure 20. group delay deviation of passband, all outputs ml6426cs-3 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?00 amplitude (db) frequency (mhz) 04080 100 20 60 30 70 90 10 50 10 8 6 4 2 0 ? ? ? ? ?0 group delay deviation (ns) frequency (mhz) 01020 25 515 7.5 17.5 22.5 2.5 12.5 figure 21. group delay deviation all band, all outputs ml6426cs-3 figure 22. frequency response all outputs ml6426cs-4 12 10 8 6 4 2 0 ? ? ? ? group delay deviation (ns) frequency (mhz) 04080 100 20 60 30 70 90 10 50 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?00 amplitude (db) frequency (mhz) 04080 100 20 60 30 70 90 10 50 figure 23. group delay deviation of passband, all outputs ml6426cs-4 figure 24. group delay deviation all band, all outputs ml6426cs-4 10 8 6 4 2 0 ? ? ? ? ?0 group delay deviation (ns) frequency (mhz) 01632 40 824 12 28 36 420 6 4 2 0 ? ? ? ? ?0 ?2 ?4 group delay deviation (ns) frequency (mhz) 04080 100 20 60 30 70 90 10 50
data sheet ml6426 rev. 3a august 2004 15 figure 25. frequency response all outputs ml6426-cs-5 figure 26. group delay deviation of passband, all outputs ml6426cs-5 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?00 amplitude (db) frequency (mhz) 04080 100 20 60 30 70 90 10 50 12 10 8 6 4 2 0 ? ? ? ? group delay deviation (ns) frequency (mhz) 02040 50 10 30 15 35 45 525 figure 27. group delay deviation all band, all outputs ml6426cs-5 12 10 8 6 4 2 0 ? ? ? ? group delay deviation (ns) frequency (mhz) 04080 100 20 60 30 70 90 10 50
ml6426 data sheet 16 rev. 3a august 2004 mechanical dimensions seating plane 0.148 - 0.158 (3.76 - 4.01) pi n 1 i d 0.228 - 0.244 (5.79 - 6.20) 0.386 - 0.396 (9.80 - 10.06) 0.012 - 0.020 (0.30 - 0.51) 0.050 bsc (1.27 bsc) 0.015 - 0.035 (0.38 - 0.89) 0.059 - 0.069 (1.49 - 1.75) 0.004 - 0.010 (0.10 - 0.26) 0.055 - 0.061 (1.40 - 1.55) 16 0.006 - 0.010 (0.15 - 0.26) 0 - 8 1 0.017 - 0.027 (0.43 - 0.69) ( 4 pl a c es) package: s16n 16-pin narrow soic
ml6426 data sheet life support policy fairchild? products are not authorized for use as critical components in life support devices or systems without the express written approval of the president 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, and (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 a significant injury of the user. 2. a critical component in 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. www.fairchildsemi.com 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. ? 2004 fairchild semiconductor corporation ordering information model part number cuttoff freq lead free package container pack quantity ml6426 ml6426cs1 6.7mhz soic-16 (narrow) rail 48 ml6426 ml6426cs1x 6.7mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs1x_nl 6.7mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs2 12mhz soic-16 (narrow) rail 48 ml6426 ml6426cs2x 12mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs3 24mhz soic-16 (narrow) rail 48 ml6426 ml6426cs3x 24mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs4 30mhz soic-16 (narrow) raill 48 ml6426 ml6426cs4x 30mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs4x_nl 30mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs5 36mhz soic-16 (narrow) rail 48 ml6426 ml6426cs5x 36mhz soic-16 (narrow) reel 2500 ml6426 ml6426cs15 15mhz soic-16 (narrow) rail 48 ml6426 ml6426cs15x 15mhz soic-16 (narrow) reel 2500 temperature range for all parts: 0? to +70?

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