MAX3710 Datasheet, PDF (1/58 Pages) Maxim Integrated Products – 125Mbps to 2.5Gbps Integrated Limiting Amplifier/Burst Mode Laser Driver with Dual-Loop Power Control

19-5910; Rev 0; 8/11
EVALUATION KIT AVAILABLE
MAX3710
125Mbps to 2.5Gbps Integrated Limiting Amplifier/
Burst Mode Laser Driver with Dual-Loop
Power Control
General Description
Benefits and Features
The MAX3710 limiting amplifier and burst mode laser
driver provides a highly integrated, low-cost, high-perfor-
mance PMD solution for GPON/EPON ONU applications
in modules or directly on the ONU board.
The low-jitter laser diode driver provides transmit burst
mode average 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
modulation current.
The low-noise limiting amplifier maximizes optical sensi-
tivity and has adjustable SD/LOS threshold plus program-
mable output levels. The differential CML output stage
features a slew-rate adjustment for 1.25Gbps EPON
operation. Integrated bias current monitor, burst mode Tx
power monitor, and a digital laser power monitor enable
a low-cost implementation of the next-generation GPON
and EPON 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 MAX3710 is offered in a small, 4mm x 4mm, 24-pin
TQFN package with exposed pad, and operates over the
-40NC to +95NC temperature range.
S Simplifies Module Manufacturing
 Enables Single-Temperature Module Testing
 Production Laser Auto-Calibration Mode
S Improved ONU Performance
 Integrated APC and ERC Loops
 1.3mV_P-P Receiver Sensitivity
 Separate Laser Driver Supply (Rogue ONU
Shutdown)
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
BOSA On-Board
GPON/EPON ONU
Ordering Information appears at end of data sheet.
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.