synchronous equipment dual output hitless switching - SY05-HLPL 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 SY05-HLPL date: may 20, 200 2 ? introduction the SY05-HLPL is a high frequency clock that has been designed to be use at high speed line interface cards in telecommunication products mainly related to stn-n or oc-n. ? features a high frequency clock intended to be used at line cards for oc3 and oc12 (stm3 and stm12). along with sy0001 or SY05-HLPL provides complete timing solution. provides very low jitter output signal from 51.84mhz to 800mhz performs hitless switching between two reference signals supports four timing modes: (1) free-run, (2) locked to reference 1 (3) locked to reference 2, and (4) loop- back timing. accepts reference inputs from two clock sources from 8khz to 77.76mhz manual or automatic selection between operating modes. alarm and status signals. complies with itu-t recommendations g.813, etsi-ets 300 462-4 and bellcore gr-1244-core for stratum 3 and 3e applications. small dimensions of 1.8 x 1.8 x 0.50 inch. ? application the SY05-HLPL high frequency clock can be used in atm, sdh, pdh, and sonet networks devices. it is designed for manufacturers of network equipment, especially access switches, core switches, cross connects, digital multiplexers-exchangers, and sdh/sonet equipment. the SY05-HLPL is a timing solution for line interface cards.
synchronous equipment dual output hitless switching - SY05-HLPL 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. - the functional block diagram of SY05-HLPL ? description the SY05-HLPL synchronization module is a high frequency pll that performs hitless switching plus additional features necessary for timing at high-speed line interface cards. the functional block diagram is shown in figure 1. the SY05-HLPL receives two reference signals, usually 19.44mhz and using pll synthesizer generates a high frequency signal necessary for transceivers or framers. the pll that is complemented by high-speed logic that provide processing, switching between the timing modes, alarm and status messages and etc. a high quality vcxo provides very low jitter at the output. the additional output is provided using a divider. the module supports two operating modes: auto mode is the mode where all switching are done automatically and manual mode is where unit will switch according to the two external control pins con1 and con2. con1 con2 operational mode 0 0 free-run (unlocked) 1 0 locked to ex ref 1 0 1 locked to ex ref 2 1 1 locked to tlb ref the module operates in the following four timing modes: 1) free-run, 2) locked to ex ref1, 3) locked to ex ref2 and 4) locked to tbl ref. free-run it a mode the unit is unlocked to either of the inputs. the accuracy of the output frequencies in this mode is equal to the accuracy of free running vcxo. locked to ex ref 1 is the mode where the output of the module is phase locked to input reference 1. locked to ex ref 2 is the mode where the output of the module is phase locked to input reference 2, locked to tbl ref is the mode where is the output of the module is phase locked to the signal used in time loop-back operation. mux, counters & control logic pll (pd+ lf) out pecl opt out pecl status signals cu#1 status signals cu#2 ex ref1 cnt1 cnt2 tlb ref alarm & status rev/nonrev vcxo ex ref2 auto/man
synchronous equipment dual output hitless switching - SY05-HLPL 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 ? specifications general specifications mechanical 1.82? (d) x 1.82? (w) x 0.425? (h) 1.95? (d) x 1.95? (w) x 0.45? (h) metal box module on pcb power supply +3.3vdc current supply tbd operating temperature -20c to 70c storage temperature -40 to 85c humidity 5% to 95% non-condensing internal oscillators vcxo saw oscillators input signals number of inputs 2 input reference frequency 8khz~19.44mhz signal level hcmos/ttl compatible number of outputs 2 output 1 155.52mhz 622.08mhz optional output 2 out1 divide by 2/4 or 8 output signal signal level lvpecl 50+/-5% signal quality performance jitter tolerance bell-core: gr-1244-core 4.2, itu-t: g.812 phase transient tolerance bell-core: gr-1244-core 4.4 wander tolerance bell-core: gr-1244-core 4.3, itu-t: g.812 jitter generation and transfer bell-core: gr-1244-core 5.5, itu-t: g.812 frequency output performance free run accuracy 20ppm pull-in range 50ppm mtie bell-core: gr-1244-core 4.2, itu-t: g.812 tdev bell-core: gr-1244-core 4.2, itu-t: g.812
synchronous equipment dual output hitless switching - SY05-HLPL 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 assignment on the picture below it is shown the pin-out for the SY05-HLPL. for other pin-out requirement please contact the raltron. figure 3 ? bottom view 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 vcc ref1 ul gnd ex ref 1 ref2 ul gnd cnt 1 cnt 2 ex ref2 opt out comp opt out ref1 hl ref2 hl ref2 al gnd tlb ok tlb ref comp tlb ref gnd ref1 fr ref2 fr ref1 al rev/nonrev gnd out out comp auto/man alarm
synchronous equipment dual output hitless switching - SY05-HLPL 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 # name description signal technology vl vh/ dc voltage min typ max min typ max 1 +vcc positive voltage supply dc ----- ----- ----- 4.75** (3.135) 5.0** (3.3) 5.25** (3.465) 2 ref1 ul reference 1 unlocked input -> the signal pll unlock comes from clock unit 1 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 3 gnd ground ----- ----- ----- ---- ------ ------ ------ 4 ex ref 1 external reference 1 input -> the input signal from reference 1 hcmos (3.3 tolerable) 0 ----- 0.5** (0.3) 4.5** (2.97) ---- ---- 5 ref2 ul reference 2 unlocked input -> the signal pll unlock comes from clock unit 2 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 6 gnd ground ----- ----- ----- ---- ------ ------ ------ 7 cnt 2 control input 2 -> the external input for selecting mode of the unit ? see table. dc 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) 8 cnt 1 control input 1 -> the external input for selecting mode of the unit ? see table. dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 9 ex ref 2 external reference 2 input -> the input signal from reference 2 hcmos (3.3 tolerable) 0 ----- 0.5** (0.3) 4.5** (2.97) ---- ---- 10 opt out comp optional output -> the secondary output of the synchronized signal, for frequency range see table below lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.88 5 11 opt out optional output -> the secondary output of the synchronized signal, for frequency range see table below. lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.88 5 12 ref1 hl reference 1 holdover input -> the signal holdover comes from clock unit 1 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 13 ref2 hl reference 2 holdover input -> the signal holdover comes from clock unit 2 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 14 ref2 al reference 2 alarm input -> the signal alarm out comes from clock unit 2 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 15 alarm alarm signal -> the output is high when there is an alarm in the module dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 16 auto/man auto/manual configuration input -> selection input for operating mode dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 17 out synchronized output -> the output of the synchronized signal. lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 vcc-1.085 vcc-1.025 vcc-0.88 5 18 out comp synchronized complementary output -> the output of the synchronized signal. lv/pecl vcc-1.680 vcc-1.620 vcc-1.560 v cc-1.085 vcc-1.025 vcc-0.88 5 19 gnd ground ----- ----- ----- ---- ------ ------ ------ 20 rv/nrv revert / non revert input-> selection input for revert feature revertive-?1? ; non-revertive = ?0? dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 21 ref1 al reference 1 alarm input -> the signal alarm out comes from clock unit 1 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 22 ref2 fr reference 2 free-run input -> the signal free run comes from clock unit 2 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 23 ref1 fr reference 1 free-run input -> the signal free run comes from clock unit 1 dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 24 gnd ground ----- ----- ----- ---- ------ ------ ------ 25 tlb ref time loop-back reference input -> the input from time loop-back reference dc 0 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 26 tlb ref comp time loop-back reference complementary input -> the input from time loop-back dc 0 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 27 tlb ok time loop-back ok -> the reference is valid for use. dc 0 0.25 ** (0.15) 0.5** (0.3) 4.5** (2.97) 5.0** (3.3) 5.25** (3.465) 28 gnd ground ----- ----- ----- ---- ------ ------ ------
synchronous equipment dual output hitless switching - SY05-HLPL 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 ? ordering information o input frequencies available frequency suffix frequency suffix 8khz f8 20.4800mhz a4 1.024mhz e0 22.2171mhz a5 1.544mhz t1 26.0000mhz g2 2.048mhz e1 27.0000mhz a6 4.096mhz e2 29.4912mhz a7 6.1760mhz t2 32.768mhz e4 6.480mhz d1 34.560mhz a8 8.192mhz e3 37.0560mhz a9 10.000mhz a1 38.880mhz o2 12.800mhz s1 44.4343mhz b1 13.000mhz g1 44.7360mhz t3 15.000mhz a2 51.8400mhz d1 16.384mhz e4 61.4400mhz u1 19.440mhz o1 62.5000mhz g1 20.000mhz m1 65.5360mhz b2 20.1416mhz a3 77.7600mhz o3 o output frequencies available frequency suffix frequency suffix frequency suffix 1.024mhz e0 44.4343mhz b1 178.9440mhz c4 1.544mhz t1 44.7360mhz t3 184.3200mhz c5 2.048mhz e1 51.8400mhz d1 311.0400mhz o5 4.096mhz e2 61.4400mhz u1 622.0800mhz o6 6.1760mhz t2 62.5000mhz g1 625.000mhz c7 6.480mhz d1 65.5360mhz b2 644.5312mhz c8 8.192mhz e3 77.7600mhz o3 666.5143mhz c9 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 b5 719.7344mhz f5 19.440mhz o1 112.000mhz b6 777.6000mhz f6 20.000mhz m1 114.000mhz b7 20.1416mhz a3 125.000mhz g2 20.4800mhz a4 133.000mhz g3 22.2171mhz a5 139.264mhz e5 26.0000mhz g2 155.520mhz o4 27.0000mhz a6 156.250mhz g4 29.4912mhz a7 161.1328mhz b8 32.768mhz e4 166.6286mhz b9 34.560mhz a8 167.3316mhz c1 37.0560mhz a9 168.0407mhz c2 38.880mhz o2 175.0000mhz c3
synchronous equipment dual output hitless switching - SY05-HLPL 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 SY05-HLPL ? ip < in freq>-ou1 |
