1 ps8592i 04/29/10 features ? maximum rated frequency: 133 mhz ? low cycle-to-cycle jitter ? input to output delay, less than 300ps ? internal feedback allows outputs to be synchronized to the clock input ? 5v tolerant input* ? spread spectrum clock ready ? operates at 3.3v v dd ? packaging (pb-free & green available): -8-pin, 150-mil soic (w) -8-pin, 173-mil tssop (l) * clkin must r eference the same voltage thresholds for the pll to deliver zero delay skewing description the pi6c2405a is a pll based, zero-delay buf fer, with the ability to distribute fve outputs of up to 133mhz at 3.3v . all the outputs are distributed from a single clock input clkin and output out0 performs zero delay by connecting a feedback to pll. an inter nal feedback on out0 is used to synchronize the out - puts to the input; the relationshi p between loading of this signal and the outputs determines the input-output delay . pi6c2405a is able to track spread spectrum clocking for emi reduction. pi6c2405a is characterized for both commercial and industrial operation. pi6c2405a-1h is a high-drive version of pi6c2405a-1 zero-delay clock buffer pi6c2405a pll clkin out 0 out 1 out 2 out 3 out 4 pi6c2405a(C1, C1h) block diagram 1 2 3 gnd 4 out 1 out 0 v dd out 3 8 7 6 5 clkin out 2 out 4 pin confguration pin description pin signal description 1 clkin input clock reference frequency (weak pull-down) 2, 3, 5, 7 out[1-4] clock outputs 4 gnd ground 6 v dd 3.3v supply 8 out0 clockoutput, internal pll feedback (weak pull-down) 11-0001
2 ps8592i 04/29/10 pi6c2405a zero delay clock buffer the relationship between loading of the out0 signal and other outputs determines the input-output delay . zero delay is achieved when all outputs, including feedback, are loaded equally. zero delay and skew control clkin input to outx delay vs. difference in loading between out0 pin and outx pins output load difference: out0 load - outx load (pf) clkin - input to outx delay (ps) 600 800 400 200 0 -200 -400 -600 -800 -900 -1000 -25 -20 -15 -10 -5 0 5 10 15 20 25 pi6c2405a-1h pi6c2405a-1 maximum ratings supply v oltage to ground potential ............................................................................................................................. C0.5v to +7.0v dc input v oltage (except clkin) ...................................................................................................................... C0.5v to v dd +0.5v dc input v oltage clkin .................................................................................................................................................... C0.5 to 7v storage t emperature .................................................................................................................................................. C65oc to +150oc maximum soldering t emperature (10 seconds) ......................................................................................................................... 260oc junction t emperature .................................................................................................................................................................. 150oc static discharge v oltage (per mil-std-883, method 3015) .................................................................................................. >2000v operating conditions (v cc = 3.3v 0.3v) parameter description min. max. units v dd supply v oltage 3.0 3.6 v t a commerical operating t emperature 0 70 c industrial operating t emperature -40 85 c l load capacitance, below 100 mhz 30 pf load capacitance, from 100 mhz to 133 15 c in input capacitance 7 11-0001
3 ps8592i 04/29/10 pi6c2405a zero delay clock buffer ac electrical characteristics for industrial temperature devices parameter description test conditions min. typ. max. units f o output frequency 30pf load 10 100 mhz 15pf load 10 133 t dc duty cycle (1) (-1) measured at v dd /2, f out < 66.67mhz, 30pf load 40 50 60 % measured at v dd /2, f out < 45mhz 15pf load 45 55 duty cycle (1) (-1h) measured at v dd /2, f out < 100mhz 15pf load 40 60 measured at v dd /2, f out < 45mhz 30pf load 45 55 t r rise t ime (1) (-1) measured between 0.8v and 2.0v, 30pf load 2.2 ns measured between 0.8v and 2.0v, 15pf load 1.5 rise t ime (1) (-1h) measured between 0.8v and 2.0v, 30pf load 1.7 t f fall t ime (1) (-1) measured between 0.8v and 2.0v, 30pf load 2.2 measured between 0.8v and 2.0v, 15pf load 1.5 fall t ime (1) (-1h) measured between 0.8v and 2.0v, 30pf load 1.5 t sk(o) output to output skew (-1, -1h) (1) all outputs equally loaded 200 ps t 0 delay, clkin rising edge to out0 rising edge (1) measured at v dd /2 0 300 t sk(d) device-to-device skew (1) measured at v dd /2 on out0 pins of device 0 600 t slew output slew rate (1) measured between 0.8v and 2.0v on -1h device using t est circuit #2 1 v/ns t jit cycle-to-cycle jitter (-1, -1h) measured at 66.67 mhz, loaded 30pf load 200 ps t lock pll lock time (1) stable power supply, valid clocks presented on clkin pin 1.0 ms dc electrical characteristics for industrial temperature devices parameter description test conditions min. max. units v il input low v oltage 0.8 v v ih input high v oltage 2.0 i il input low current v in = 0v 50 a i ih input high current v in = v dd 125 v ol output low v oltage i ol = -8ma(-1); i ol = 12ma(-1h) 0.4 v v oh output high v oltage i oh = -8ma(-1); i oh = -12ma(-1h) 2.4 i dd supply current unloaded outputs 100 mhz, select inputs at v dd or gnd 54 ma unloaded outputs 66 mhz, clkin 39 notes: 1. see switching w aveforms on page 5. 11-0001
4 ps8592i 04/29/10 pi6c2405a zero delay clock buffer ac electrical characteristics for commercial temperature devices parameter description test conditions min. typ. max. units f o output frequency 30pf load 10 100 mhz 15pf load 10 133 t dc duty cycle (1) (-1) measured at v dd /2, f o < 66 mhz, 30pf load 40 50 60 % duty cycle (1) (-1h) measured at v dd /2, f o < 66 mhz, 30pf load 45 50 55 t r rise t ime (1) @ 30pf measured between 0.8v and 2.0v 2.2 ns rise t ime (1) @ 15pf 1.5 rise t ime (1) @ 30pf (-1h) 1.5 t f fall t ime (1) @ 30pf measured between 0.8v and 2.0v 2.2 fall t ime (1) @ 15pf 1.5 fall t ime (1) @ 30pf (-1h) 1.5 t sk(o) output to output skew (-1, -1h) (1) all outputs equally loaded 200 ps t 0 input to output delay, clkin rising edge to out0 rising edge (1) measured at v dd /2 0 300 t sk(d) device-to-device skew (1) measured at v dd /2 on out0 pins of device 0 600 t slew output slew rate (1) measured between 0.8v and 2.0v on -1h device using t est circuit #2 1 v/ns t jit cycle-to-cycle jitter (-1, -1h) measured at 66.67 mhz, loaded 30pf load 200 ps t lock pll lock time (1) stable power supply, valid clocks presented on clkin pin 1.0 ms notes: 1. see switching w aveforms on page 5. dc electrical characteristics for commercial temperature devices parameter description test conditions min. max. units v il input low v oltage 0.8 v v ih input high v oltage 2.0 i il input low current v in = 0v 50 a i ih input high current v in = v dd 125 v ol output low v oltage i ol = -8ma(-1); i ol = 12ma(-1h) 0.4 v v oh output high v oltage i oh = -8ma(-1); i oh = -12ma(-1h) 2.4 i dd supply current unloaded outputs 100 mhz, select inputs at v dd or gnd 54 ma unloaded outputs 66.67 mhz, select inputs at v dd or gnd 39 11-0001
5 ps8592i 04/29/10 pi6c2405a zero delay clock buffer switching waveforms t low t high v dd /2 v dd /2 v dd /2 t f t r 0.8v 2.0v 0.8v 2.0v output 0v 3.3v v dd /2 v dd /2 v dd /2 v dd /2 v dd /2 v dd /2 t sk(o) output output t 0 input output t sk(d) output device 1 output device 2 duty cycle timing all outputs rise/fall time output-output skew input-output propagation delay device-device skew t dc = t high t high+ t low v dd c load v dd gnd gnd clk out outputs test circuit 1 test circuit 2 0.1f 0.1f test circuit for all parameters except t slew v dd 10pf v dd gnd gnd clk out outputs 0.1f 0.1f test circuit for t slew , output slew rate on C1h device 1k? 1k? 11-0001
6 ps8592i 04/29/10 pi6c2405a zero delay clock buffer packaging mechanical: 8-pin soic (w) 1 .0040 .0098 seating plane .013 .020 .050 bsc .016 .0075 .0098 1 8 .0099 .0196 0-8? .050 .149 .157 x.xx x.xx denotes dimensions in millimeters 3.78 3.99 .189 .196 4.80 5.00 1.27 .016 .026 1.35 1.75 .2284 .2440 5.80 6.20 0.406 0.660 0.330 0.508 0.10 0.25 0.40 1.27 0.19 0.25 0.25 0.50 x 45? .053 .068 ref description: 8-pin, 150-mil wide, soic package code: w document control no. pd - 1001 revision: f date: 03/09/05 notes: 1) controlling dimensions in millimeters. 2) ref: jedec ms-012d/aa pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 11-0001
7 ps8592i 04/29/10 pi6c2405a zero delay clock buffer packaging mechanical: 8-pin tssop (l) 1 description: 8-pin, 173-mil wide, tssop package code: l document control no. pd - 1308 revision: e date: 11/15/05 note: 1. package outline exclusive of mold flash and metal burr 2. controlling dimentions in millimeters 3. ref: jedec mo-153f/aa pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 11-0001
8 ps8592i 04/29/10 pi6c2405a zero delay clock buffer pericom semiconductor corporation ? 1-800-435-2336 ? www .pericom.com ordering information for commercial operating ranges ordering code package code package description pi6c2405a-1hwe w pb-free & green, 8-pin 150-mil soic pi6c2405a-1le l pb-free & green, 8-pin 173-mil tssop pi6c2405a-1hle l pb-free & green, 8-pin 173-mil tssop ordering information for industrial operating ranges ordering code package code package description pi6c2405a-1hwie w pb-free & green, 8-pin 150-mil soic pi6c2405a-1lie l pb-free & green, 8-pin 173-mil tssop PI6C2405A-1HLIE l pb-free & green, 8-pin 173-mil tssop notes: 1. thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. x = t ape/reel 3. e = pb-free & green 11-0001
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