PRODUCT DESCRIPTION

The ADN2849 is a low power 10.7Gbps driver for electro-absorption modulator (EAM) applications. The modulation voltage is programmable via an external voltage up to a maximum swing of 3V when driving 50?. The bias offset voltage and output eye cross point are also programmable. On-chip 50? resistor is provided for back termination of the output. The ADN2849 is driven by AC coupled differential CML level data and has selectable data retiming to remove jitter from data input signal. The modulation voltage can be enabled or disabled by driving the MOD_ENB pin with the proper logic levels. It can operate with positive or negative (5.2V or 5.0V) supply voltage.

The ADN284949 is available in a compact 4x4mm plastic package or dice format.

FEATURES

Data Rates up to 10.709Gb/s

Typical Rise/Fall Time 27ps

Power Dissipation 900mW (at 2V swing, 1V offset)

Programmable Modulation Voltage up to 3V

Programmable Bias Offset Voltage up to 2V

Voltage-input control for offset, modulation

Cross Point Adjust Range 30- 85

Selectable Data Retiming

PECL/CML Data & Clock Inputs

50? on Chip Data & Clock Terminations

Modulation Ebnable/Disable

|S11|<-10dB , |S22|<-8dB at 10GHz

Positive or negative 5.2 or 5.0V single supply operation

Available in dice and 4x4mm 24 Lead LFCSP package

APPLICATIONS

SONET OC-192 Optical Transmitters

SDH STM-64 Optical Transmitters

10Gb Ethernet IEEE802.3

XFP/X2/XENPACK/MSA-300 Optical Modules