MAX3949ETE+T by Analog Devices

11.3Gbps, Low-Power, AC-Coupled Laser Driver


The MAX3949 is a 3.3V, multirate, low-power laser diode driver designed for Ethernet, Fibre Channel, and SONET transmission systems at data rates up to 11.3Gbps. This device is optimized to drive a differential transmitter optical subassembly (TOSA) with a 25Ω flex circuit. The unique design of the output stage enables use of unmatched TOSAs. The device receives differential AC-coupled signals with on-chip termination. It can deliver laser modulation currents of up to 85mA at an edge speed of 22ps (20% to 80%) into a 5Ω external differential load. The device is designed to have a high-bandwidth differential signal path with on-chip back termination resistors integrated into its outputs. An input equalization block can be activated to compensate for SFP+ host connector losses. The integrated bias circuit provides programmable laser bias currents up to 105mA. Both the laser bias current generator and the laser modulator can be disabled from a single pin. The use of a 3-wire digital interface reduces the pin count while permitting adjustment of input equalization, polarity, output deemphasis, and modulation and bias currents without the need for external components. The device is available in a 3mm x 3mm, 16-pin TQFN package, and is specified for the -40°C to +95°C extended temperature range.

Where to Buy

Prices starting from US$3.92

Distributor Stock
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Farnell
from US$3.92
No stock
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Logo for Analog Devices
Analog Devices
from US$4.05
891
in stock
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Newark Electronics
-
-
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Features

Low Power Consumption
Saves Board Space Small 3mm x 3mm Package
Small 3mm x 3mm Package
Flexibility Programmable Modulation Current Up to 85mA (5Ω Load) Programmable Bias Current Up to 105mA Programmable Input Equalization and Output Deemphasis
Programmable Modulation Current Up to 85mA (5Ω Load)
Programmable Bias Current Up to 105mA
Programmable Input Equalization and Output Deemphasis
Safety Supports SFF-8431 SFP+ MSA and SFF-8472 Digital Diagnostic Integrated Eye Safety Features with Maskable Faults Bias Current Monitor
Supports SFF-8431 SFP+ MSA and SFF-8472 Digital Diagnostic
Integrated Eye Safety Features with Maskable Faults
Bias Current Monitor

Specifications

Target Oper. Range (Gbps) 5 to >10
Data Rate (Mbps) (min) 1000
Data Rate (Mbps) (max) 11300
VSUPPLY (V) 3.3
ICC (mA) (typ) 55
IMOD (mA) (max) 85
IBIAS (mA) (max) 105
Package/Pins TQFN/16
BudgetaryPrice (See Notes) 3.33


MAX3949ETE+T Semiconductors - ICs by Analog Devices

LASER DRIVER 11.3GBPS TQFN-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Laser Driver Type SFP / SFF Optical Modules
Driver Case Style TQFN
No. of Pins 16Pins
Supply Voltage Min 2.95V
Supply Voltage Max 3.63V
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

1Gbps to 11.3Gbps, SFP+ Laser | Analog Devices
LASER DRIVER, 11.3GBPS, TQFN-16 | Farnell
Laser Driver, 11.3Gbps, Tqfn-16 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX3949ETE+T ?

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Is the MAX3949ETE+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX3949ETE+T have stock available?

Authorised distributors including Analog Devices, Farnell and Newark Electronics have stock available or on a lead time for MAX3949ETE+T .

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