MAX3711 Datasheet, PDF (1/54 Pages) Maxim Integrated Products – 125Mbps to 3.125Gbps Integrated Limiting Amplifier/Laser Driver with Dual-Loop Power Control

19-6025; Rev 0; 9/11
EVALUATION KIT AVAILABLE
MAX3711
125Mbps to 3.125Gbps Integrated Limiting Amplifier/
Laser Driver with Dual-Loop Power Control
General Description
The MAX3711 limiting amplifier and laser driver provides
a highly integrated, low-cost, high-performance PMD
solution.
The low-jitter laser diode driver provides transmit aver-
age power control (APC) of laser bias current as well as
an integrated modulation current control loop (extinction
ratio control, or ERC). The ERC eliminates the need for
temperature lookup tables (LUTs) controlling the modula-
tion current.
The low-noise limiting amplifier maximizes optical sen-
sitivity and has adjustable SD/LOS threshold plus pro-
grammable output levels. The differential CML output
stage features a slew-rate adjustment for 1.25Gbps
operation. Integrated bias current monitor and Tx power
monitor enable a low-cost implementation of modules
with digital diagnostics.
A novel auto-calibration mode enables low-cost fiber
optic module production. An integrated 3-wire digital
interface controls the laser driver and limiting amplifier
functions, and enables communication with a low-cost
controller.
The MAX3711 is offered in a small, 4mm x 4mm, 24-pin
TQFN package with exposed pad, and operates over the
-40NC to +95NC temperature range.
Ordering Information appears at end of data sheet.
Benefits and Features
S Simplifies Module Manufacturing
 Enables Single-Temperature Module Testing
 Production Laser Auto-Calibration Mode
S Improved Performance
 Integrated APC Loop (Operates Up to
3.125Gbps)
 Integrated ERC Loop (Operates Up to 2.7Gbps)
 1.3mV_P-P Receiver Sensitivity
S Flexibility
 LVDS, LVPECL, and CML Compatible High-
Speed I/Os
 Programmable I/O Polarity
 3-Wire Digital Interface
S Safety and Reliability
 Integrated Safety Features with FAULT Mask
Register
 Supports SFP MSA and SFF-8472 Digital
Diagnostic
 Selectable Analog Monitor of Laser Power or
BIAS Current at BMON Pin
Applications
OC-3 to OC-48 SFP/SFF Transceivers
Ethernet SFP/SFF Transceivers
CPRI/OBSAI SFP/SFF Transceivers
CWDM SFP Transceivers
For pricing, delivery, and ordering information, please contact Maxim Direct
  1
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.