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