synchronous equipment high frequency clock regenerator - SY02-FEC 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-FEC date: january 7, 2003 ? introduction the SY02-FEC 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 fec (forward error correction) or oc-n frequencies. ? features - low jitter output from intrinsically low jitter vcxo or vcso; - user selected one or two input references up to 800mhz ( see table on page 3) - one high frequency lvpecl output with 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-FEC 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-FEC 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 800mhz) output from a low jitter vcxo (crystal based oscillator) or vcso (saw based oscillators). the output can be disabled externally by setting outen pin high. the SY02-FEC can be locked to a user defined input reference/s signal/s (from 1.024mhz to 800mhz?for options please see table ) . raltron?s SY02-FEC 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-FEC 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 selected option 0 regenerated 622.08mhz into 622.08mhz 1 translates 666.5143mhz into 622.08mhz mux, fpd, counters & logic loop filter vcxo ref in q out j-tag port out alarm ref in q in p ut fre q . sel vcxo monitor lock monitor a=622.08mhz b= 666.513mhz sy02 - fec e/d
synchronous equipment high frequency clock regenerator - SY02-FEC 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 lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.885 2 ref in input reference complimentary signal lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.885 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 high or floating disables the output, active low 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 complementary 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 frequency select; low-primary frequency; high secondary frequency dc 0 0.15 0.3 2.97 3.3 3.465 13 n/c no connect ----- ----- ----- ---- ------ ------ ------ 14 n/c no connect ----- ----- ----- ---- ------ ------ ------ 15 gnd ground ----- ----- ----- ---- ------ ------ ------ 16 vcc positive supply voltage dc ? 3.3v ----- ----- ---- 2.97 3.3 3. 465 ? ordering information o input/output frequencies available; frequency suffix frequency suffix 77.7600mhz o3 168.0407mhz c2 78.125mhz b3 175.0000mhz c3 78.6432mhz b4 178.9440mhz c4 82.9440mhz b5 184.3200mhz c5 92.6000mhz u3 311.0400mhz o6 100.000mhz b6 622.0800mhz o7 112.000mhz b7 625.000mhz c8 114.000mhz b8 644.5312mhz c9 125.000mhz g2 666.5143mhz c10 133.000mhz g4 669.1281mhz f1 139.264mhz e6 669.3266mhz f2 155.520mhz o4 690.5692mhz f3 156.250mhz g6 710.9486mhz f4 161.1328mhz b9 719.7344mhz f5 166.6286mhz b10 777.6000mhz f6 167.3316mhz c1
synchronous equipment high frequency clock regenerator - SY02-FEC 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-FEC ? ip - is-ou |
