ONET8501PB Datasheet, PDF (1/27 Pages) Texas Instruments – 11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER

ONET8501PB
www.ti.com ....................................................................................................................................................................................................... SLLS910 – JULY 2008
11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER
FEATURES
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• Up to 11.3-Gbps Operation
• 2-Wire Digital Interface
• Digitally Selectable Input Bandwidth
• Adjustable LOS Threshold
• Digitally Selectable Output Voltage
• Digitally Selectable Output Pre-Emphasis
• Adjustable Input Threshold Voltage
• Low Power Consumption
• Input Offset Cancellation
• CML Data Outputs with On-Chip 50-Ω
Back-Termination to VCC
• Single +3.3-V Supply
• Output Disable
• Surface Mount Small Footprint 3mm × 3mm
16-Pin RoHS compliant QFN Package
APPLICATIONS
• 10-Gigabit Ethernet Optical Receivers
• 2x/4x/8x and 10x Fiber Channel Optical
Receivers
• SONET OC-192/SDH-64 Optical Receivers
• SFP+ and XFP Transceiver Modules
• XENPAK, XPAK, X2 and 300-pin MSA
Transponder Modules
• Cable Driver and Receiver
DESCRIPTION
The ONET8501PB is a high-speed, 3.3-V limiting amplifier for multiple fiber optic and copper cable applications
with data rates from 2 Gbps up to 11.3 Gbps.
The device provides a two-wire serial interface which allows digital control of the bandwidth, output amplitude,
output pre-emphasis, input threshold voltage (slice level) and the loss of signal assert level. Predetermined
settings for bandwidth and LOS assert levels can also be selected with external rate selection pins.
The ONET8501PB provides a gain of about 34dB which ensures a fully differential output swing for input signals
as low as 20mV_p-p. The output amplitude can be adjusted to 350mV_pp, 650mV_pp, or 850mV_pp. To compensate for
frequency dependent loss of microstrips or striplines connected to the output of the device, programmable
pre-emphasis is included in the output stage. A settable loss of signal detection and output disable are also
provided.
The device, available in RoHS compliant small footprint 3mm × 3mm 16-pin QFN package, typically dissipates
less than 170 mW and is characterized for operation from –40°C to 100°C.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated