VSC7979, VSC7999

11.3 Gb/s Transimpedance Amplifiers with Photocurrent Monitor and Input Slicing Adjust

APPLICA TIONS:

10G Receiver Optical Sub-Assemblies:

- 9.983 Gb/s SONET OC-192/SDH STM-64

- 10.3 Gb/s Ethernet

- 10.5 Gb/s Fibre Channel

- 10.7 Gb/s OTN G.709/G.975

- 12.5 Gb/s SONET with FEC

- DWDM SONET/SDH

Transponders:

- XENPAK, X2, XPAK Modules

- 300-pin MSA Modules

Transceivers:

- XFP Modules

FEA TURES:

Single +3.3V Supply

9K

Ω Differential Transimpedance – VSC7999

3K

Ω Differential Transimpedance – VSC7979

Low Power Consumption for XFP Applications

Photo Linear Current Monitor

Input Slicing Adjust for Fiber Dispersion Compensation

Available in Bare Dice

.

PHYSICAL LAYER PRODUCTS

PB-VSC7979,7999-001

VSC7999

Optical

Distortion

Adjustment

Input

Current

Monitor

SLCDN

OUTP

OUTN

SLCUP

IIN

IMON

BENEFITS:

Source Terminated Differential Outputs for High Signal Integrity

Linear Photocurrent Monitor Offers Diagnostic Capabilities

Input Slicing Adjust Allows the End User to Optimize the Receiver

Performance for Fiber Dispersion and Non-linearity

SPECIFICA TIONS:

Supply Voltage: 3.3V

± 10%

Power Dissipation: 210mW – VSC7999

Power Dissipation: 180mW – VSC7979

Input Noise: 12 pA/ Hz

Bandwidth: 10.5GHz (typical)

Sensitivity : -19dBm (typical)

Max Input Current: 2.5mA p-p (min)

Operating Temperature from -10

°C to 85°c

BLOCK DIAGRAM: