VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Datasheet
VSC7139
Features
• Four Complete Transmitter/ Receiver Functions
in a Single Integrated Circuit
• Full Fibre Channel (T11) and Gigabit Ethernet
(IEEE 802.3z) Compliance
• 1.05Gb/s to 1.36Gb/s Operation per Channel
• Common or Per-Channel Transmit Byte Clocks
• TTL or PECL Reference Clock Input
• 1/10
th
or 1/20
th
Baud Rate Recovered Clocks
Quad Transceiver for
Gigabit Ethernet and Fibre Channel
• Common and Per-Channel, Serial and Paral-
lel Loopback Controls
• Common Comma Detect Enable Inputs
• Per-Channel Comma Detect Outputs
• Cable Equalization in Receivers
• Automatic Lock-to-Reference
• 3.3V Power Supply, 2.67 W Max Power
Dissipation
• 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 “Comma” 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
÷10
QD
0
1
Clock
Recovery
Rx+
Rx-
RCM
RCx1
RCx0
SYNCx
ENCDET
PLUP
SLPN
LPNx
Tx(0:9)
SEL
÷10/
÷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
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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