GENERAL DESCRIPTION
The QuadPHYTM is a Quad PHYsical layer transceiver ideal for systems requiring large numbers of point-to-point gigabit links. It provides four individual serial channels capable of operation at up to 1.25 Gbps each, which may be grouped together to form a single 5.0 Gbps bidirectional link. Each of the four primary channels has a corresponding secondary channel that can be enabled via the MDC/MDIO serial interface.
FEATURES
⢠Four independent 1.0-1.25 Gbit/s transceivers
⢠Four secondary channels to support channel redundancy
⢠Ultra low power operation: 1.25 Watt typical
⢠Integrated serializer/deserializer, clock synthesis, clock recovery, and 8B/10B encode/decode logic
⢠Physical Coding Sublayer (PCS) logic for Gigabit Ethernet
⢠Selectable 8-bit, 10-bit, or IEEE 802.3z GMII parallel interface
⢠Optional Receive FIFOs which synchronize incoming data to local clock domain
⢠âTrunkingâ feature to de-skew and align received parallel data across four channels
⢠100-156 MHz Single Data Rate (SDR) parallel transmit interface with clock forwarding
⢠100-125 MHz SDR parallel receive interface
⢠Extensive control of loopback, BIST, and operating modes via 802.3 compliant MDC/MDIO serial interface
⢠Built-in packet generator/checker
⢠IEEE 1149.1 JTAG testing support
⢠IEEE 802.3z Gigabit Ethernet and ANSI X3T11 Fibre Channel support
⢠High speed outputs which feature programmable output current to directly drive dual-terminated line
⢠2.5V, 0.25 micron CMOS technology with 3.3V tolerant I/O
⢠Direct interface to optical modules, coax, or serial backplanes
⢠Small footprint 19x19 mm, 289-pin PBGA
APPLICATIONS
⢠High speed serial backplanes
⢠Gigabit Ethernet links
⢠Fibre Channel links
⢠Intra-system interconnect
⢠ASIC to PMD link
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