SY02-HLPL Datasheet | Raltron Electronics

SYNCHRONOUS EQUIPMENT HIGH FREQUENCY HITLESS SYNCHRONIZER - SY02-HLPL PRELIMINARY SPECIFICATION Date: July 1, 2002 - INTRODUCTION The SY02-HLPL is a dual input reference hitless switching device with high frequency crystal-based PLL synchronizer designed as a subsystem module. Mainly used at high speed Line Interface Cards in telemunication products mainly related to STN-n or OC-n. The SY02-HLPL is a synchronization solution for timing and jitter topics specified within ITU-T Remendations G.813, ETSI -ETS 300 4624, and Bellcore GR-1244-CORE. - - Features Low jitter output from intrinsically low jitter VCXO or VCSO; Two input references from 8KHz to 77.76MHz (See page 3 for options) One high frequency LVPECL output with enable/disable function up to 800MHz (pre-select frequency value - See page 3 for options) - Alarms and status; Provides free running clock output; Provides a manual input frequency selection 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: 0.96” x 1.050” - - APPLICATIONS ATM SDH PDH SONET Other telemunication 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. Internet: http:/.raltron. th SYNCHRONOUS EQUIPMENT HIGH FREQUENCY HITLESS SYNCHRONIZER - SY02-HLPL ALARM FRS REF 1 IN REF 2 IN CNT FR MUX, FPD, Counters & Logic LOOP FILTER VCXO J-TAG PORT EN OUT - DESCRIPTION The SY02-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 the figure above . The SY02-HLPL receives two reference signals, from 8KHz to 77.76MHz (See page 3 for available options) and using PLL synthesizer generates a high frequency signal necessary for transceivers or framers. The PLL...