synchronous equipment high frequency clock regenerator - sy02-mftp raltron electronics corp. 10651 n.w.19 th st florida 33172 u.s.a. tel: 305 593-6033 fax: 305-594-3973 e-mail: sales@raltron.com internet: http:/www.raltron.com sy02-mftp date: aug 4, 2005 ? introduction the sy02-mftp is a high frequency crystal-based pll synchronizer designed as a module level subsystem for easy incorporation into telecommunication equipment sonet/sdh/atm/dwdm. supports multiplexing of up to 4 independent references translated into one single jitter free frequency source. ? features - low jitter output from intrinsically low jitter vcxo ; - user selected one hcmos input frequency up to 77.76mhz - one high frequency lvpecl output with a complimentary port and enable/disable function up to 800mhz (pre-select frequency value ?upon order) - alarms status and vcxo monitor; - the unit changes timing modes in response to external events; - j-tag service port for re-programming and servicing; - 3.3v dc power supply - small dimensions: 0.8? x 1.00? ? applications - atm - sdh - pdh - sonet - dwdm - fec - other telecommunication equipment.
synchronous equipment high frequency clock regenerator - sy02-mftp raltron electronics corp. 10651 n.w.19 th st florida 33172 u.s.a. tel: 305 593-6033 fax: 305-594-3973 e-mail: sales@raltron.com internet: http:/www.raltron.com figure 1 ? block diagram (***components outside the dotted line are user supplied) ? description the sy02-mftp is a high frequency phase lock loop has been designed as a module level subsystem for easy incorporation into telecommunication equipment. the module generates the high frequency (up to 170mhz) output from a low jitter vcxo (crystal based oscillator. the output can be disabled externally by setting outen pin high. the sy02- mftp can be locked to a user defined input reference signal (from 8khz to 77.76mhz?for options please see table ) . frequency selection could be simultaneously achieved of up to 4 independent sources while combining the module with an external mux. raltron?s sy02-mftp device could be used as a frequency translator in pll circuits or frequency re- generator device in cases where jitter cleaning and filtering is required. the module has a fast locking time and tolerates reference inputs with different duty cycles. the loop bandwidth is optimized in accordance with the vcxo used and required output performance. the alarm output signals monitor the status of the phase lock loop and indicates lold (loss of lock detect). if the reference ref in is absent, the sy02-mftp will automatically switch to free run mode and lold will show ?0? logic level. the smd package dimensions are 0.80?x1.00? inch and powered by a supply of 3.3v. alarm states lol d alarm 0 module in free-run 1 module locked input reference control select cnt a cnt b selected option 0 0 ext ref 1 0 1 ext ref 2 1 0 ext ref 3 1 1 ext ref 4 sy02-mftp mux, fpd, counters & logic loop filte r vcxo ref in out (opt., for pecl ) j-tag port ref 2 input freq. cnt a vcxo monitor lock monitor e/d input freq. cnt b mux ref 1 alarm ref 3 ref 4 ou t
synchronous equipment high frequency clock regenerator - sy02-mftp raltron electronics corp. 10651 n.w.19 th st florida 33172 u.s.a. tel: 305 593-6033 fax: 305-594-3973 e-mail: sales@raltron.com internet: http:/www.raltron.com ? pin description name description signal technology vl vh/ dc voltage min typ max min typ max 1 ref in input reference signal hcmos (3.3 tolerable) 0 ----- 0.5 (0.3) 4.5 (2.97) ---- ---- 2 gnd ground ----- ----- ----- ---- ------ ------ ------ 3 lol lock detect alarm out ? high when locked; low when unlocked dc 0 0.15 0.3 2.97 3.3 3.465 4 mntr vcxo monitor out- dc control voltage offset indicator (when locked shall be within); 0.3 enables the output, active low (?0? logic) or floating disables the output, active high (?1? logic) dc 0 0.15 0.3 2.97 3.3 3.465 9 out oscillator output -> output of the module lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.885 10 out oscillator comp. output -> output of the module lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.885 11 n/c no connect ----- ----- ----- ---- ------ ------ ------ 12 cnt a frequency select; see table page 2. dc 0 0.15 0.3 2.97 3.465 13 cnt b frequency select; see table page 2. dc 0 0.15 0.3 2.97 3.3 3.465 14 n/c no connect ----- ----- ----- ---- ------ ------ ------ 15 gnd ground ----- ----- ----- ---- ------ ------ ------ 16 vcc positive supply voltage dc ----- ----- ----- 3. 135 3.3 3.465 ? ordering information o input/output frequencies available; frequency suffix frequency suffix frequency suffix 8khz f8 38.880mhz o2 175.0000mhz c3** 1.024mhz e0 44.4343mhz b1 178.9440mhz c4** 1.544mhz t1 44.7360mhz t3 184.3200mhz c5** 2.048mhz e1 51.8400mhz d2 311.0400mhz o6** 4.096mhz e2 61.4400mhz u1 622.0800mhz o7** 6.1760mhz t2 62.5000mhz g5 625.0000mhz c8** 6.480mhz d1 65.5360mhz b2 644.5312mhz c9** 8.192mhz e3 77.7600mhz o3** 666.5143mhz c10** 10.000mhz a1 78.125mhz b3** 669.1281mhz f1** 12.800mhz s1 78.6432mhz b4** 669.3266mhz f2** 13.000mhz g1 82.9440mhz b5** 690.5692mhz f3** 15.000mhz a2 92.6000mhz u3** 710.9486mhz f4** 16.384mhz e4 100.000mhz b6** 719.7344mhz f5** 19.440mhz o1 112.000mhz b7** 777.6000mhz f6** 20.000mhz m1 114.000mhz b8** 20.1416mhz a3 125.000mhz g2** 20.4800mhz a4 133.000mhz g4** 22.2171mhz a5 139.264mhz e6** 26.0000mhz g3 155.520mhz o4** 27.0000mhz a6 156.250mhz g6** 29.4912mhz a7 161.1328mhz b9** 32.768mhz e5 166.6286mhz b10** 34.560mhz a8 167.3316mhz c1** 37.0560mhz a9 168.0407mhz c2** ** signifies an output frequency only
synchronous equipment high frequency clock regenerator - sy02-mftp raltron electronics corp. 10651 n.w.19 th st florida 33172 u.s.a. tel: 305 593-6033 fax: 305-594-3973 e-mail: sales@raltron.com internet: http:/www.raltron.com p/n system sy02-mftp ? ip < input frequency> - ou |
