XRT91L81 데이터 시트보기 (PDF) - Exar Corporation
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XRT91L81 Datasheet PDF : 40 Pages
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XRT91L81
2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
REV. P1.0.3
PRELIMINARY
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
• 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 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
• 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
• Targeted for SONET OC-48/SDH STM-16 • 600mW Typical Power Dissipation
Applications
• Package: 12 x 12 mm 196-pin STBGA
PRODUCT NUMBER
XRT91L81IB
PRODUCT ORDERING INFORMATION
PACKAGE TYPE
196 STBGA
OPERATING TEMPERATURE RANGE
-40°C to +85°C
2
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