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XRT91L80 Datasheet(PDF) 2 Page - Exar Corporation

Part # XRT91L80
Description  2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT91L80 Datasheet(HTML) 2 Page - Exar Corporation

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XRT91L80
PRELIMINARY
xr
xr
xr
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2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
REV. P1.1.0
2
FEATURES
2.488 / 2.666 Gbps Transceiver
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
Single-chip fully integrated solution containing parallel-to-serial converter, clock multiplier unit (CMU), serial-
to-parallel converter, and clock data recovery (CDR) functions
4-bit LVDS signaling data paths running at 622.08/666.51 Mbps compliant with OIF SFI-4 Implimentation
Agreement
Non-FEC and FEC rate REFCLKP/N single reference input port
Supports 77.76/83.31 MHz or 155.52/166.63 MHz transmit and receive external reference input port
Optional VCXO input port support multiple de-jittering modes
On-chip phase detector and charge pump for external VCXO based de-jittering PLL
Internal FIFO decouples transmit parallel clock input and transmit parallel clock output
Provides Local, Remote Serial, Remote Parallel and Split Loopback modes as well as Loop Timing mode
Diagnostics features include various lock detect functions and transmit CMU and receive CDR Lock Detect
Host mode serial microprocessor interface simplifies monitor and control
Meets Telcordia, ANSI and ITU-T jitter requirements including T1.105.03 - 2002 SONET Jitter Tolerance
specification, GR-253 CORE, GR-253 ILR SONET Jitter specifications.
Operates at 1.8V CMOS and CML with 3.3V I/O
490mW Typical Power Dissipation
Package: 12 x 12 mm 196-pin STBGA
IEEE 1149.1 Compatable JTAG port
PRODUCT ORDERING INFORMATION
PRODUCT NUMBER
PACKAGE TYPE
OPERATING TEMPERATURE RANGE
XRT91L80IB
196 STBGA
-40°C to +85°C


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