m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 1 the m655 series of voltage controlled saw oscillators is a low cost solution for many telecom applications. an internal saw filter provides jitter performance of less than 0.5psec (rms). this device is specified for an operating temperature range of -40 c to +85 c. a disable feature forces the output into a static condition by applying a logic ??to the clock enable input. the oscillator is housed in a hermetically-sealed, leadless surface mount package. the m655 series of vcos is available over an output frequency range of 155mhz to 900mhz. the device is most suited for phase-locked loop applications as well as clock and data recovery circuits. clock smoothing for oc192/oc48/ oc12/oc3 clock smoothing for sts96/sts48/ sts12/sts3/sts1 frequency translation clock and data retiming iso 9001 registered iso 9001 registered m655 series v oltage controlled saw oscillators output frequencies at 155mhz to 900mhz low phase jitter, 0.5psec (rms) typical 3.3 volt supply operation complementary outputs output disable feature lcc surface mount package (9 x 14mm) application features description operating temp. range (case): ........................ -40 c to +85 c storage temp. range (ambient): .................... -55 c to +125 c control voltage range: ................................................. 0 to v cc output current: ................................................................ 20 ma power supply voltage (vcc): ................................ 0 to +3.6 vdc absolute max ratings 9mm 14mm
m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 2 specifications @ vcc = +3.3 volts, vee = 0 volts, and ta = +25 c unless otherwise specified p arameter min typ max units output frequency 155 900 mhz absolute pull range 50 ppm f requency stability (-40 c to 85 c) +25/-150 ppm duty cycle 45 55 % spurious suppression-50 -60 dbc linearity 6% logic levels vol 1 vcc - 1.95 vcc - 1.63 volts voh 2 vcc - 0.98 vcc - 0.75 volts input control voltage (vc) range 0 vcc volts vco gain 200 ppm/v vc input impedance 8 12 k ? vc modulation bw 500 khz clock/output enable (pin 2) 2.0 vcc +0.3 volts clock/output disable (pin 2) -0.3 0.8 volts output rise time 250 400 psec output fall time 250 400 psec jitter @ 155.520mhz offset from carrier 12khz to 20mhz 0.230 psec rms jitter @ 622.080mhz offset from carrier 12khz to 80mhz 0.458 psec rms phase noise (offset from carrier) 100hz -65 dbc/hz 1khz -95 dbc/hz 10khz -120 dbc/hz 100khz -140 dbc/hz operating temperature -40 25 +85 c supply current icc 80 95 ma supply voltage vcc 3.2 3.3 3.4 v notes: 1. output levels are standard 10k ecl and are fully 100k ecl compatible. 2. transition times are measured from 20% to 80% of a full 10k ecl level swing. -170 -160 -150 -140 -130 -120 -110 -100 -90 1e+03 1e+04 1e+05 1e+ 0 frequency in hz ssb phase noise dbc/hz specifications phase noise
m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 3 -15 -10 -5 0 5 10 3.15 3.2 3.25 3.3 3.35 3.4 3.45 vcc (v) ppm deviation deviation (ppm) jitter output 622310000 622280000 622250000 622220000 622190000 622160000 622130000 622100000 622070000 622040000 622010000 621980000 0.2 0.4 0.6 08 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 typical linearity of a m655 operating at 622.08 mhz over the input range of .3 to 3.0 volts t ypical linearity specifications t ypical frequency pushing
m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 4 micro networks has subjected their vcso component to various reflow profiles and test conditions for optimum substrate mounting performance. the conditions suggested here are recommended temperature settings for the vcso device during the r eflow processes. the best case condition for the device is a slow ramp up to prevent thermal shock before reaching reflow temperatures of sn/pb flux activated solder with a melting point of 183 degree celsius. the m655 device should not see temperatures above 183 degrees celsius for an extended periods beyond 60 seconds. maximum peak temperature for the device should not exceed 220 degrees celsius for longer then 20 seconds. micro networks has designed the m655 device as a sealed unit. the package is 100% tested for seal defects. aqueous, solvent, or other wash type cleaning methods is acceptable for this device. ir reflow profile t ape & reel a b c d e f g h i n o j k l m 180 220 150 100 50 60 60?0 105?50 t ime (seconds) t emperature ( c) ir reflow profile (vendor recommendation) t ape mm reel mm a2 4f 1.78 b 11.5 g 21 c 1.5 h 13 d4 i 100 e12 j5 m 9.2 k 25 n 14.5 l 330 o 3.7 no. per reel: 300 max t ape & reel dimensions
m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 5 m655 155.520mhz 155.52mhz 155.52mhz and frequency detector loop filter applications jitter attenuator frequency translator multi-rate fec clock generator m655 666.514mhz m655 622.080mhz m655 669.13mhz programmable divider fin fout and frequency detector loop filter mux m655 622.080mhz divide by 32 19.44mhz 622.080mhz and frequency detector loop filter
m655 series p erformance specifications integrated circuit systems integrated circuit systems, inc. communications modules www.icst.com/comm-modules tel: 508-852-5400 6 mechanical dimensions & pin configuration rev. 9.0 m655 series gnd vcc 50 ? 50 ? 4 5 6 3 output output control voltage clock enable 1 2 v t v t = vcc-2v 6 5 4 .550 [ 13.97 ] 1 2 3 3 2 1 4 6 o rientati o n ke y 8x .040 [ 1.02 ] 8x .066 [ 1.68 ] .200 [ 5.08 ] .100 [ 2.54 ] .350 [8.89] .145 [3.28] max pin no. function 1vt 2ce 3 gnd 4 cout 5 ncout 6 vcc ordering information part number m655p 622.0800 p for pecl operation specify frequency in mhz xxx.xxxx (eg. 155.5200mhz, 311.0400mhz, 622.0800mhz, 666.5140mhz) absolute pull range blank = 50ppm 100ppm available for certain frequencies. consult factory. block diagram integrated circuit systems, inc. communications modules 32 4 clark street w orcester, ma 01606 tel: 508-852-5400 fax: 508-852-8456 european sales headquarters hertogsingel 20 6214 ad maastricht t he netherlands tel: +31-43-32-70912 fax: +31-43-32-70715 www.icst.com/comm-modules ics reserves the right to make changes in the device data identified in this publication without further notice. ics advises its customers to obtain the latest version of all device data to verify that any information being relied upon by the customer is current and accurate.
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