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XRT91L81 Datasheet(PDF) 2 Page - Exar Corporation

Part # XRT91L81
Description  2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT91L81 Datasheet(HTML) 2 Page - Exar Corporation

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XRT91L81
2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
REV. P1.0.3
PRELIMINARY
2
FEATURES
2.488 / 2.666 Gbps Transceiver
Single-chip fully integrated solution containing
parallel-to-serial converter, clock multiplier unit
(CMU), serial-to-parallel converter, limiting amplifier
and clock data recovery (CDR) functions
Host mode serial microprocessor interface
simplifies monitor and control
Provides support for dual fiber rings
Integrated limiting amplifier accepts differential
inputs down to 10mVp-p
Separate reference and VCXO input ports support
multiple de-jittering modes
On-chip phase detector and charge pump for
external VCXO based de-jittering PLL
Targeted for SONET OC-48/SDH STM-16
Applications
Selectable full duplex operation between standard
rate of 2.488 Gbps or Forward Error Correction rate
of 2.666 Gbps
4-bit LVDS data paths at 622/666 MHz complies
with OIF SFI-4 Implimentation Agreement
Internal FIFO decouples transmit input and output
clocks
Tx CMU and Rx CDR lock detect
Provides Local, Remote and Split Loop-Back
modes as well as Loop Timing mode
Diagnostics features include various lock detect
functions
Meets Telcordia, ANSI and ITU-T jitter
requirements
Operates at 1.8V with 3.3V I/O
600mW Typical Power Dissipation
Package: 12 x 12 mm 196-pin STBGA
PRODUCT ORDERING INFORMATION
PRODUCT NUMBER
PACKAGE TYPE
OPERATING TEMPERATURE RANGE
XRT91L81IB
196 STBGA
-40°C to +85°C


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