Overview

The GN2010D is an integrated bi-directional CDR, DFB/FP laser driver and limiting amplifier for XFP & SFP+ SONET, 10GBase-LR Ethernet and 8.5Gb/s Fibre Channel applications.

It is a highly-integrated, low-power, small-footprint device, that is ideal for small form factor optical modules.

The transmit path consists of optional input equalization, a multi-rate Tx CDR, and a DFB laser driver. The receive path is comprised of a limiting amplifier with programmable equalization, a multi-rate Rx CDR, and output de-emphasis. Both transmit and receive directions offer highly configurable eye shaping features, which allow for optimal electrical and optical outputs. Both directions also offer the option for polarity-invert, loopback, output mute, and programmable output equalization.

The GN2010D has an integrated analog to digital converter, which through the serial interface, provides digital diagnostic information on supply voltage, die temperature, laser bias current, and transmit optical power. The GN2010D is configurable for multi-rate operation. The GN2010D also offers integrated laser safety features.

The GN2010D device is packaged in a small-outline 5mm × 5mm 32-pin, high-frequency QFN package with exposed pad. The GN2010D is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous sub-components are RoHS compliant.

Order Codes

GN2010D-INE3 | 32-QFN

PB Free/ROHS

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Features

Dual CDR with 8.5Gb/s, 9.95-11.3Gb/s and 10.3-11.7Gb/s reference-free operation
Integrated DFB/FP laser driver
Integrated limiting amplifier with sensitivity less than 7mV
Digital control through I2C or SPI interface
Programmable Jitter Transfer bandwidth
On-chip Automatic Power Control (APC) loop
Bi-directional loopback
Polarity invert and output available in both transmit and receive direction
Programmable output de-emphasis
Mission-mode eye monitor
PRBS Generator and Checker
Programmable Limiting Amplifier Equalization
Programmable Transmit Input Equalization
Programmable Input Slice Level Adjust
Programmable LOS with adjustable threshold and hysteresis
Programmable Sampling Phase Adjust
Programmable Tx Fault signalling
Integrated analog to digital converter, which provides access to digital diagnostic information on supply voltage, die temperature, laser bias current, and transmit optical power
Single 3.3V supply (+5% / - 15%)
Integrated laser safety features
5x5 32-pin QFN package
-40°C to 100°C case operation
Laser bias current up to 120mA
Option for source or sink bias current
Modulation current into differentially-driven 25? TOSA up to 80mA peak-to-peak
2x 25? single-ended terminations
Transmitter disable pin
Crossing point adjustment
Jitter Optimization with Phase Adjust feature
Optional on-chip APC loop
Programmable Tx Fault signalling