IDT82V2048

The IDT82V2048 is a single chip, 8-channel T1/E1 short haul PCM transceiver with a reference clock of 1.544MHz (T1) or 2.048MHz (E1). It contains 8 transmitters and 8 receivers.

Both the receivers and transmitters can be programmed to work either in single rail mode or dual rail mode. AMI or HDB3/B8ZS encoder/ decoder is selectable in single rail mode. Pre-encoded transmit data in NRZ format can be accepted when IDT82V2048 is configured in dual rail mode. The receivers perform clock and data recovery by using integrated digital phase-locked loop. As an option, the raw sliced data (no retiming) can be output on the receive data pins. Transmit equalization of IDT82V2048 is implemented with low-impedance output drivers that provide shaped waveforms to the transformer, guaranteeing template conformance.

A jitter attenuator is integrated in the IDT82V2048 and can be switched into either the transmit path or the receive path for all channels. The jitter attenuation performance meets ETSI CTR12/13, ITU G.736, G.742, G.823, and AT&T Pub 62411 specifications.

The IDT82V2048 offers hardware control mode and software control mode. Software control mode works with either serial host interface or parallel host interface. The latter works of IDT82V2048 via an Intel/Motorola compatible 8-bit parallel interface for both multiplexed or non-multiplexed applications. Hardware control mode uses multiplexed pins to select different operation modes when the host interface is not available to the device.

The IDT82V2048 also provides loopback and JTAG boundary scan testing functions. Using the integrated monitoring function, that  can be configured as a 7-channel transceiver with non-intrusive protected monitoring points.

The IDT82V2048 can be used for SDH/SONET multiplexers, central office or PBX, digital access cross connects, digital radio base stations, remote wireless modules and microwave transmission systems.