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VSC7139TW Datasheet

  • VSC7139TW

  • Telecomm/Datacomm

  • 18頁

  • ETC

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VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Datasheet
VSC7139
Features
鈥?Four Complete Transmitter/ Receiver Functions
in a Single Integrated Circuit
鈥?Full Fibre Channel (T11) and Gigabit Ethernet
(IEEE 802.3z) Compliance
鈥?1.05Gb/s to 1.36Gb/s Operation per Channel
鈥?Common or Per-Channel Transmit Byte Clocks
鈥?TTL or PECL Reference Clock Input
鈥?1/10
th
or 1/20
th
Baud Rate Recovered Clocks
Quad Transceiver for
Gigabit Ethernet and Fibre Channel
鈥?Common and Per-Channel, Serial and Paral-
lel Loopback Controls
鈥?Common Comma Detect Enable Inputs
鈥?Per-Channel Comma Detect Outputs
鈥?Cable Equalization in Receivers
鈥?Automatic Lock-to-Reference
鈥?3.3V Power Supply, 2.67 W Max Power
Dissipation
鈥?208-Pin, 23mm BGA Packaging
General Description
The VSC7139 is a full-speed Quad Fibre Channel and Gigabit Ethernet Transceiver IC. Each of the four
transmitters has a 10-bit wide bus, running up to 136MHz, which accepts 8B/10B encoded transmit characters
and serializes the data onto high speed differential outputs at speeds up to 1.36Gb/s. The transmit data can be
synchronous to the reference clock, a common transmit byte clock or a per-channel transmit byte clock. Each
receiver samples serial receive data, recovers the clock and data, deserializes it into 10-bit receive characters,
outputs a recovered clock and detects 鈥淐omma鈥?characters. The VSC7139 contains on-chip (PLL) circuitry for
synthesis of the baud-rate transmit clock and extraction of the clocks from the received serial streams.
VSC7139 Block Diagram (1 of 4 Channels)
Rx(0:9)
10
QD
Serial to
Q Parallel D
梅10
QD
0
1
Clock
Recovery
Rx+
Rx-
RCM
RCx1
RCx0
SYNCx
ENCDET
PLUP
SLPN
LPNx
Tx(0:9)
SEL
梅10/
梅20
Comma
Detect
Loopback
Control
4
0
10
DQ
4
Parallel
to Serial
DQ
1
Tx+
Tx-
TBCx
REFT
REF+
REF-
RFCM
LTCN
4
Clock
Multiply
Unit
x10/x20
RFCO0
RFCO1
G52196-0, Rev 3.3
5/14/01
漏
VITESSE
SEMICONDUCTOR CORPORATION
鈥?741 Calle Plano 鈥?Camarillo, CA 93012
Tel: (800) VITESSE 鈥?FAX: (805) 987-5896 鈥?Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Page 1

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