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SY58626L Datasheet, PDF (1/18 Pages) Micrel Semiconductor – DC-to-6.4Gbps Backplane Transmit Buffer with Selectable Output Pre-emphasis, I/O DCOffset Control, and 200mV-3.0VPP Output Swing | |||
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SY58626L
DC-to-6.4Gbps Backplane Transmit Buffer
with Selectable Output Pre-emphasis, I/O DC-
Offset Control, and 200mV-3.0VPP Output
Swing
General Description
The SY58626L high-speed, low jitter transmit buffer is
optimized for backplane and transmission line data-path
management applications in Automatic Test Equipment
(ATE) and Test & Measurement (T&M) systems. The
buffer includes a CML compatible, variable swing output
with selectable pre-emphasis. The SY58626L is
capable of driving serial data from DC through 6.4Gbps
with a 3VPP (1.5VPK single ended) differential swing.
The SY58626L differential input includes Micrelâs
unique, 3-pin input termination architecture that directly
interfaces to any DC- or AC-coupled, differential signal
as small as 100mVPK without any termination resistor
networks in the signal path. The outputs are 50â¦
source-terminated CML with a programmable output
swing from 200mVPP to 3VPP (100mVPK to 1.5VPK).
The SY58626L includes an output stage that provides 4
levels of pre-emphasis. The output pre-emphasis level is
programmed with a three-bit interface. Unlike other
transmitter solutions, the output pre-emphasis duration
can be programmed from 60ps to 400ps.
The SY58626L operates at 3.3V ±10% supply and is
guaranteed over the commercial temperature range of
0°C to +70°C. The SY58626L transmitter is optimized to
work with the SY58627L receiver. The SY58626L is part
of Micrelâs high-speed, Precision Edge® product line.
Data sheets and support documentation can be found
on Micrelâs website at: www.micrel.com.
Features
Precision Edge®
⢠Transmit driver provides output pre-emphasis to
extend transmission range
⢠4 selectable pre-emphasis levels
⢠Drives 6.4Gbps up to 12" FR4 PCB trace, or longer
combinations of FR4+cable+interconnect
⢠DC through 6.4Gbps data rate throughput
⢠Integrated loopback capability
⢠Unique pre-emphasis:
- Programmable pre-emphasis magnitude
- Programmable pre-emphasis duration
⢠Unique, flexible I/O:
- Internal termination to VTTIN pin interfaces to any
differential AC- or DC-coupled signals
- 50⦠source terminated CML outputs minimize
round-trip reflections
- Programmable output swing control: 200mV-
3.0VPP
- Output Disable and output shutdown
- DC-offset control with VTT I/O
⢠3.3V ±10% supply voltage
⢠0°C to +70°C temperature range
⢠Available in 32-pin (5mm x 5mm) MLFTM package
Applications
⢠ATE, T&M backplane management
⢠Combination FR4+cable+interconnect driver
⢠Cable drivers
⢠Electrical interface and interconnect applications that
require DC-offset control
Precison Edge is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are trademarks of Amkor Technology, 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
March 2006
M9999-030206-B
hbwhelp@micrel.com or (408) 955-1690
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