GN2406

Product Information
Documentation

Overview

The GN2406 is a quad repeater/re-timer device designed to enhance the reach and robustness of high speed serial links by compensating for transmission losses and re-setting the crosstalk and jitter budget.

The GN2406 features Gennum’s proven reference-free CDR architecture which simplifies system design and reduces overall cost. Each channel supports independent locking to data rates from 9.95 - 11.3Gb/s. To enable backward compatibility with legacy data rates, half rate (5Gb/s) and quarter rate (2.5Gb/s) operation is also supported. Other rates can be supported using the re-timer bypass feature.

High sensitivity limiting amplifiers at the input make this device suitable for use in optical modules. Gennum’s proprietary CLEAREDGE™ technology ensures extremely low output jitter. Copper cable or backplane trace losses of up to 28dB can be compensated using the output de-emphasis capability.

Features/Highlights

Automatic locking from 9.95Gb/s to 11.3Gb/s
Automatic rate detect for quarter rate (2.5Gb/s) and half rate (5Gb/s) modes
Re-timer bypass up to 11.3Gb/s

No reference clock required

Integrated limiting amplifier, with 10mV to 1600mV differential input voltage range

Programmable output, with 400mV to 800mV differential output voltage range

Independent channel operation

De-emphasis to compensate up to 28dB of loss

Polarity inversion

I2C control interface

Automatically loads configuration data from E2PROM

Loss of signal detect with adjustable threshold

Low power dissipation

Single 3.3V supply

7x7mm, 48-pin QFN package

Key Applications

Active Copper Cable assemblies and optical modules for:
- Infiniband® SDR/DDR/QDR
- 40Gb/s and 100Gb/s Ethernet

Re-timer on line card for:

QSFP modules
Parallel optical modules
SFP+ modules

10Gb/s serial backplane retimer

Ordering Information

Part No	Package
GN2406-INE3	48 pin QFN

Document	Type	Size
GN2405 & GN2406 Quad 10Gb/s CDR with Transmit De-Emphasis	Brochure	362 kB
GN2406-INE3 Material Composition	RoHS Document	15 kB
GN2406-INE3 RoHS Certificate	Certificate	159 kB
Optical and IC Products for High Speed Communications	Brochure	2.5 MB

Restricted Downloads

Document	Type	Size
GN2406 Quad 10Gb/s CDR with Transmit De-Emphasis	Product Brief	264 kB
Comparison of GN2405 & GN2406 Quad 10Gb/s Devices	Information Note	503 kB
EB GN2406_R3	PCB Drawing	172 kB
GN2405 and GN2406 Characterization Report	Information Note	2.8 MB
GN2405/GN2406 Customer Reliability Qualification Report	Reliability Report	108 kB
GN2406 Errata	Information Note	153 kB
GN2406 Evaluation Board User Guide	User Guide	2.3 MB
GN2406 Quad 10Gb/s CDR with Transmit De-Emphasis	Datasheet	3.3 MB
How to Configure Multiple GN2405/06 CDRs: App Note	Application Note	230 kB