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SYNCHRONOUS EQUIPMENT CLOCK/SYNCHRONIZER - SY02-PLL SY02-PLL Date: May 18, 2004 * INTRODUCTION The SY02-PLL is a crystal-based PLL synchronizer designed as a module level subsystem for easy incorporation into telecommunication equipment. * - FEATURES Low jitter output from intrinsically low jitter VCXO; Four selectable references inputs: 8, 16, 32 and 64KHz; Alarms and status; Buffered reference output; Tri-state (high impedance) reference and oscillators outputs; Provides free running clock output; The unit changes timing modes in response to external events; J-TAG service port for re-programming and servicing; * - APPLICATIONS ATM SDH PDH SONET other telecommunication equipment. RALTRON ELECTRONICS CORP. 10651 N.W.19 St Florida 33172 U.S.A. Tel: 305 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com th SYNCHRONOUS EQUIPMENT CLOCK/SYNCHRONIZER - SY02-PLL LOL LOR REF OUT REF IN FREE-RUN IN-B IN-A MUX, FPD, Counters & Logic LOOP FILTER VCXO OUT J-TAG PORT EN OUT * DESCRIPTION The SY02-PLL is a Phase Lock Loop has been designed as a module level subsystem for easy incorporation into telecommunication equipment. The module generates the output from a low jitter VCXO. The SY02-PLL can lock to one of four reference frequencies from 8 to 64kHz that can be selected using to external select pins. The counters, phase detector and other logic are implemented in programmable logic. The loop bandwidth is optimized according to used VCXO and wanted output performance. The two output signals monitor the status of the phase loop LOL (Loss of Lock) and LOR (Loss of Reference). The two control inputs provides module to go into free-run regardless of the reference (FREE_RUN) and to the tri-state high impedance output (OUT EN). The SMD package dimensions are 19.4 x 20.3 mm and power supply is 3.3V. - INPUT REFERENCE SELECTION IN-A 0 1 0 1 IN-B 0 0 1 1 REFERENCE SELECTED 8KHz (default) 16KHz 32KHz 64KHz - OUTPUT PROGRAMMING EN OUT 0 1 0 FREE-RUN 0 X 1 OUTPUT Locked to Reference Hi-Z Tri-State Free-Run - ALARM STATES LOL 0 1 0 LOR 0 0 1 ALARM No alarm Loss of Lock Loss of Reference RALTRON ELECTRONICS CORP. 10651 N.W.19 St Florida 33172 U.S.A. Tel: 305 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com th SYNCHRONOUS EQUIPMENT CLOCK/SYNCHRONIZER - SY02-PLL * PIN DESCRIPTION Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Name REF OUT TCK TMS GND FREE-RUN LOR LOL REF IN OUT OUT EN Vcc TDO IN-B IN-A Description Reference Output -> The buffered signal from REFERENCE IN pin. J-TAG port for factory usage - TCK J-TAG port for factory usage - TMS Ground Free-Run -> Control input to force unit to run as free running oscillator Loss of Reference -> Output signal shows presence of the reference Loss of Lock -> Output signal shows status of the PLL Reference Input -> Reference input signal Oscillator Output -> Output of the module Output Enable -> Control input to enable/disable the module output Positive supply voltage J-TAG port for factory usage - TDO External Reference 1 Input -> Select input from reference 1 External Reference 2 Input -> the input from reference 2 * ORDERING INFORMATION o Input/Output Frequencies available; Frequency 8KHz 1.024MHz 1.544MHz 2.048MHz 4.096MHz 6.1760MHz 6.480MHz 8.192MHz 10.000MHz 12.800MHz 13.000MHz 15.000MHz 16.384MHz 19.440MHz 20.000MHz 20.1416MHz 20.4800MHz 22.2171MHz 26.0000MHz 27.0000MHz 29.4912MHz 32.768MHz 34.560MHz 37.0560MHz Suffix F8 E0 T1 E1 E2 T2 D1 E3 A1 S1 G1 A2 E4 O1 M1 A3 A4 A5 G2 A6 A7 E4 A8 A9 Frequency 38.880MHz 44.4343MHz 44.7360MHz 51.8400MHz 61.4400MHz 62.5000MHz 65.5360MHz 77.7600MHz Suffix O2 B1 T3 D1 U1 G1 B2 O3 RALTRON ELECTRONICS CORP. 10651 N.W.19 St Florida 33172 U.S.A. Tel: 305 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com th SYNCHRONOUS EQUIPMENT CLOCK/SYNCHRONIZER - SY02-PLL P/N System SY02-PLL- IP < Input Frequency> - OU |
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