ONET1131EC Datasheet, PDF (1/46 Pages) Texas Instruments – Externally Modulated Laser Driver

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ONET1131EC
SLLSEQ6 – SEPTEMBER 2016
ONET1131EC Externally Modulated Laser Driver With Integrated
Clock and Data Recovery (CDR)
1 Features
•1 Modulator Driver with Minimum Output Amplitude
up to 2 Vpp Single-Ended and Bias Current up to
150 mA Source
• Supports Externally Modulated Lasers Including
the Electro-Absorption Modulator Lasers (EML)
and the Mach-Zahnder Modulator (MZM) Based
lasers
• Integrated CDR with 9.80 – 11.7 Gbps Reference-
Free Operation
• Two-Wire Digital Interface with Integrated DACs
and ADC for Control and Diagnostic Management
• Output Polarity Select
• Programmable Jitter Transfer Bandwidth to Adjust
CDR Bandwidth
• CDR Bypass Mode for Low Data Rate Operation
• Automatic Power Control (APC) Loop with
Selectable Monitor PD Range
• Programmable Transmit Input Equalizer
• Transmitter Cross-Point Adjust and De-Emphasis
• Includes Laser Safety Features
• Power Supply Monitor and Temperature Sensor
• Single 2.5 V Supply
• –40°C to 100°C Operation
• Surface Mount 4 mm x 4 mm 32-Pin QFN
Package with 0.4 mm Pitch
2 Applications
• 10-Gbps Passive Optical Network (PON), Optical
Line Terminal (OLT) Transceivers for FTTx
deployment
• XFP and SFP+ 10-Gbps SONET OC-192 Optical
Transceivers
• XFP and SFP+ 10GBASE-ER/ZR Optical
Transceivers
• 8x and 10x Fibre Channel Optical Transmitters
3 Description
The ONET1131EC is a 2.5-V EML modulator driver
with transmit clock and data recovery (CDR)
designed to operate between 9.8 Gbps and 11.7
Gbps without the need for a reference clock. CDR
bypass mode can be used for operation at lower data
rates and a two-wire serial interface allows digital
control of features like output polarity select and input
equalization.
The transmit path consists of an adjustable input
equalizer for equalization of up to 300 mm
(12 inches) of microstrip or stripline transmission line
of FR4 printed circuit boards, a multi-rate CDR and
an output modulator driver. Output waveform control,
in the form of cross-point adjustment and de-
emphasis, is available to improve the optical eye
mask margin. The device provides bias current for
the laser and an integrated automatic power control
(APC) loop to compensate for variations in average
optical power over voltage, temperature and time.
The ONET1131EC contains internal analog to digital
and digital to analog converters to support transceiver
management and eliminate the need for special
purpose microcontrollers.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ONET1131EC
VQFN (32)
4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Block Diagram
n-bit
parallel
data
DE-
MUX
Clock
Data
Clock
n-bit
parallel
data
MUX
Clock
Data
Clock
Optical Module
CDR
PA
Optical Transceiver
EQ
CDR
LD
ONET1131EC
TIA
PD + Optical
DEMUX
ROSA
Optical Fiber
Laser + Optical
MUX
TOSA
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.