82P2821BH IDT, Integrated Device Technology Inc, 82P2821BH Datasheet - Page 11

• Manufacturer Part Number: 82P2821BH
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2821BH

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

APPLICATIONS
DESCRIPTION
haul Line Interface Unit. Each channel of the IDT82P2821 can be inde-
pendently configured. The configuration is performed through a Serial or
Parallel Intel/Motorola Non-Multiplexed /Multiplexed microprocessor
interface.
face, the received signal is processed by an adaptive Equalizer and then
sent to a Slicer. Clock and data are recovered from the digital pulses
output from the Slicer. After passing through an enabled or disabled
Receive Jitter Attenuator, the recovered data is decoded using B8ZS/
AMI/HDB3 line code rule in Single Rail NRZ Format mode and output to
the system, or output to the system without decoding in Dual Rail NRZ
Format mode and Dual Rail RZ Format mode.
Applications
IDT82P2821
The IDT82P2821 is a 21+1 channels high-density T1/E1/J1 short
In the receive path, through a Single Ended or Differential line inter-
SDH/SONET multiplexers
Central office or PBX (Private Branch Exchange)
Digital access cross connects
Remote wireless modules
Microwave transmission systems
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
11
Single Rail NRZ Format mode or TDPn/TDNn in Dual Rail NRZ Format
mode and Dual Rail RZ Format mode, and is sampled by a transmit
reference clock. The clock can be supplied externally from TCLKn or
recovered from the input transmit data by an internal Clock Recovery. A
selectable JA in Tx path is used to de-jitter gapped clocks. To meet T1/
E1/J1 waveform standards, five preset T1 templates and two E1
templates, as well as an arbitrary waveform generator are provided. The
data through the Waveform Shaper, the Line Driver and the Tx Trans-
mitter is output on TTIPn and TRINGn.
detected in both receive line side and transmit system side. AIS alarm,
PRBS, ARB and IB patterns can be generated /detected in receive /
transmit direction for testing purpose. Analog Loopback, Digital Loop-
back and Remote Loopback are all integrated for diagnostics.
other 21 channels, channel 0 also supports G.772 Monitoring and Jitter
Measurement per ITU O.171.
sive Monitoring of channels of other devices.
In the transmit path, the data to be transmitted is input on TDn in
Alarms (including LOS, AIS) and defects (including BPV, EXZ) are
Channel 0 is a special channel. Besides normal operation as the
A line monitor function per T1.102 is available to provide a Non-Intru-
JTAG per IEEE 1149.1 is also supported by the IDT82P2821.
February 6, 2009