XRT91L80(2005-03) 查看數據表（PDF） - Exar Corporation

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XRT91L80
(Rev.:2005-03)

2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER

Exar Corporation 

XRT91L80

PRELIMINARY

2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER

xr

REV. P1.0.4

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

• 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 compliant 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

• 420mW Typical Power Dissipation

• Package: 12 x 12 mm 196-pin STBGA

• IEEE 1149.1 Compatable JTAG port

PRODUCT NUMBER

XRT91L80IB

PRODUCT ORDERING INFORMATION

PACKAGE TYPE

196 STBGA

OPERATING TEMPERATURE RANGE

-40°C to +85°C

2

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