VSC7226 Datasheet, PDF (2/2 Pages) Vitesse Semiconductor Corporation – Quad 3.125Gb/s Backplane Transceiver

VSC7226
VSC7226 Quad 3.125Gb/s Backplane Transceiver
GENERAL DESCRIPTION:
The VSC7226-01 and VSC7226-02 are quad
channel parallel-to-serial and serial-to-
parallel transceiver chips designed for
use in high bandwidth data transmission
between busses, backplanes and other
subsystems. Each channel's transmitter section contains
parallel 8-bit or 10-bit SSTL_2 input circuitry, an 8B/10B
encoder, serializer and a pair of serial PECL output drivers and
additional control inputs. Each channel's receiver section
contains a pair of PECL inputs, clock and data recovery
circuitry, a deserializer, an 8B/10B decoder, elastic buffers, 8-
bit or 10-bit SSTL_2 output drivers and additional control
outputs. Each transmitter may be supplied 8-bit data which
will be encoded into 10-bit characters for transmission, or
may be supplied pre-encoded 10-bit data in which case the
internal encoder is bypassed. The four channels may operate
independently or in a synchronized mode transferring data
that is word-aligned across 16 or 32 data inputs.
VSC7226 BLOCK DIAGRAM:
8
T(7:0)
C/D
WSEN
TBC
DQ
KCHAR
10
8B/10B
Encode
PTXEN
PTX+
PTX-
RTX+
RTX-
RTXEN
8
R(7:0)
IDLE
KCH
ERR
PLL
Clock
Gen
TXCLK
RXCLK
Elastic
Buffer
8B/10B ¹⁰
Decode
Clock/
Data
Recover
Signal Channel Shown
PSDET
PRX+
PRX-
RRX+
RRX-
RSDET
RRXSEL
VSC7226 APPLICATIONS:
Backplane
Backplane
Copper or
Fiber Media
Backplane
32
VSC7226
32
VSC7226
32
32
25Gb/s encoded duplex throughput
VSC7226 APPLICATIONS:
10GbE Parallel Optics Interface
XAUI
VSC7320
10Gb/s
VSC7226
MAC
XGMII
32-bits @
156.25MHz
Dual-edge
Clocking
VSC8476
LAN
Interface
Chip
OPTICS
10.3Gb/s
Serial Data
VSC7226 APPLICATIONS:
LAN/WAN Serial Interface
Parallel Optics
@ 3.125Gb/s
VSC7320
10Gb/s
MAC
VSC7640
4 channel
VSC7226
VCSEL
Driver or ^Optics
XGMII
XCVR
VSC7650
32-bits @
156.25 MHz
Dual-edge
Clocking
XAUI
4 channel
TIA+LA+LOS
4 x 3.125Gb/s
8B/10B
Optics Module
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©2002 Vitesse Semiconductor Corporation
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