 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| SYNCHRONOUS EQUIPMENT CLOCK/SYNCHRONIZER - SY02-PLL2 SY02-PLL2 Date: December 12, 2003 * INTRODUCTION The SY02-PLL2 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; Two references inputs, user selects the frequencies; Alarms and status; Buffered reference output; Tri-state (high impedance) reference and oscillators outputs; Provides free running clock output of 20ppm; The unit changes timing modes in response to external events; J-TAG service port for re-programming and servicing; * - APPLICATIONS Line Cards 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-PLL2 FRS ALARM REF OUT CNT FREE-RUN REFA REFB MUX, FPD, Counters & Logic LOOP FILTER OUT VCXO J-TAG PORT EN OUT * DESCRIPTION The SY02-PLL2 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 and provides recovered signal as secondary output. The SY02-PLL2 has two reference inputs with frequencies that can be selected by user from 8 to 77.76MHz. The input reference selection pin (CNT) selects which reference will be used. The loop bandwidth is optimized according to used VCXO and wanted output performance. The ALARM output signal monitors the status of the phase loop in case of Loss of Lock (LOL) and Loss of Reference (LOR) both internal signals. 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 CNT 0 1 Reference selected REF A REF B - OUTPUT PROGRAMMING EN OUT 0 1 0 FREE-RUN 0 X 1 FRS output 0 0 1 OUTPUT Locked to Reference Hi-Z Tri-State Free-Run - ALARM STATES LOL 0 1 0 LOR 0 0 1 ALARM 0 -No alarm 1- Loss of Lock 1-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-PLL2 * 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 ALARM REF B IN REF A IN OUT FRS Vcc TDO OUT EN CNT Description Reference Output -> The recovered signal from reference. 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 Alarm output -> Output signal presents if LOL or LOR Reference B Input -> Reference input signal Reference A Input -> Reference input signal Oscillator Output -> Output of the module Free Run Status Output -> Status of free run mode. Positive supply voltage J-TAG port for factory usage - TDO Output Enable -> Control input to enable/disable the module output Control Input -> Select one of the reference input 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-PLL2 * ORDERING INFORMATION SY02-PLL2- IP < Input Frequency> - OU |
Price & Availability of SY02-PLL2
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |