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SY58627L
DC-to-6.4Gbps Backplane Receive Buffer with
Four Stage Programmable Equalization
and DC-Offset Control
Precison Edge is a registered trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
January 2006
M9999-010606-A
General Description
The SY58627L high-speed, low jitter receive buffer is
optimized for backplane and transmission line data-path
management applications. The SY58627L is capable of
receiving serial data up to 6.4Gbps across up to 36
inches of FR4.
The
SY58627L
differential
input
includes
Micrel’s
unique, 3-pin input termination architecture that directly
interfaces to any differential signal as small as 100mVpk
(AC- or DC-coupled) without any termination resistor
networks in the signal path. The outputs are 50
source-terminated CML optimized to drive 400mVpk into
50
(100 load across the output pair). The I/O
termination is connected to a dedicated VTT pin for
added bias flexibility.
The SY58627L receiver input provides four levels of
equalization
to
compensate
for
degraded
signals
resulting from transmission losses. The equalization is
programmed with a three-bit interface.
The SY58627L operates at 3.3V ±10% supply and is
guaranteed over the full industrial temperature range of
-40°C to +85°C. The SY58627L is part of Micrel’s high-
speed, Precision Edge
product line.
All data sheets and support documentation can be found
Precision Edge
Features
Selectable equalizing network to optimize incoming
data eye pattern
Four selectable equalization levels
Receives up to 36” FR4 PCB trace, or longer
combinations of FR4+cable+interconnect
DC through 6.4Gbps data rate throughput
Integrated loopback capability
Unique, flexible I/O:
- Patented, Internal termination to VTTIN pin
interfaces to any differential AC- or DC-coupled
signals
- 50
source terminated CML outputs minimize
round-trip reflections
- Wide input voltage range: 100mV to 1.3VPK
- Output disable
- DC-offset control with VTT I/O
Input loss-of-signal
- Hysteresis included
3.3V ±10% supply voltage
-40°C to +85°C temperature range
Available in 32-pin (5mm x 5mm) QFN package
Applications
ATE, T&M backplane management
Serial backplane management
Combination FR4+cable+interconnect receiver
Fibre Channel, GigE, SONET/SDH data
transmission
Electrical interface and interconnect applications
that require DC-offset control