DESCRIPTION

The IDT82V3002A is a WAN PLL with dual reference inputs. It contains a Digital Phase-Locked Loop (DPLL), which generates ST-BUS clocks and framing signals that are phase locked to a 2.048 MHz, 1.544 MHz or 8 kHz input reference.

FEATURES

? Supports AT&T TR62411 and Telcordia GR-1244-CORE Stratum 3, Stratum 4 Enhanced and Stratum 4 timing for DS1 interfaces

? Supports ITU-T G.813 Option 1 clocks for 2048 kbit/s interfaces

? Supports ITU-T G.812 Type IV clocks for 1544 kbit/s interface and 2048 kbit/s interfaces

? Supports ETSI ETS 300 011, TBR 4, TBR 12 and TBR 13 timing for E1 interface

? Selectable input reference signal: 8 kHz, 1.544 MHz or 2.048 MHz

? Accepts reference inputs from two independent sources

? Provides eight types of clock signals: C1.5o, C3o, C2o, C4o, C6o, C8o, C16o and C32o

? Provides six types of 8 kHz framing pulses: F0o, F8o, F16o, F32o, RSP and TSP

? Holdover frequency accuracy of 0.025 ppm

? Phase slope of 5 ns/125 μs

? Attenuates wander from 2.1 Hz

? Fast Lock mode

? Provides Time Interval Error (TIE) correction

? MTIE of 600 ns

? JTAG boundary scan

? Holdover status indication

? Freerun status indication

? Normal status indication

? Lock status indication

? Input primary reference quality indication

? 3.3 V operation with 5 V tolerant I/O

? Package available: 56-pin SSOP