GN2017中文资料一个集成的VCSEL驱动双14G的CDR和极限放大器数据手册Semtech规格书

特性 Features

Dual CDRs with 9.95-11.3Gb/s and 14.025Gb/s reference-free operation
Integrated limiting amplifier with sensitivity less than 10mV
Integrated VCSEL driver
Automatic rate detect
On-chip Automatic Power Control (APC) loop
Digital control and monitoring
Integrated eye monitor
PRBS7 generator/checker
Bi-directional loopback
Polarity invert, output mute available in both transmit and receive direction
Optional transmit path input trace equalization
Programmable analog pre-emphasis for SFI output
Programmable VCSEL-driver Output Crossing-Point Adjust
VCSEL driver analog pre-emphasis: programmable boost amplitude and width
Programmable Tx Fault signalling (open-drain)
Integrated analog to digital converter, which provides access to digital diagnostic information on supply voltage, die temperature, laser bias current, and transmit optical power
I2C Serial Interface
• Integrated laser safety features
Single 3.3V supply (+5%/-7%)
5x5 32-pin QFN package
-40°C to 95°C case operation
Single-ended or differential, AC-coupled bias sink/source VCSEL drive operation
Adjustable bias current from 1mA to 12mA
Adjustable modulation current from 2mA peak-to-peak to 15mA peak-to-peak, single-ended
Output: 2 x 50?single-ended terminations
Crossing point adjustment (20% to 80% of eye height)
Programmable analog pre-emphasis:

peaking tail current range of 0 to 6mA in 32 steps
peaking temporal range 0 to 100ps in 32 steps
Programmable rise/fall time; 20ps to 40ps
Optional on-chip APC loop
Programmable Tx Fault signalling