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Datasheet: CS6722 (Myson Technology)

2.5Gbps Fiber-optic Pin Pre-amplifier With Agc

 

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2.5Gbps Fiber-Optic PIN Pre-Amplifier with AGC
CS6722
BLOCK DIAGRAM
GENERAL DESCRIPTION
Century Semiconductor Inc.
FEATURES
APPLICATIONS
USA:
4020 Moorpark Avenue Suite 115
San Jose, CA, 95117
Tel: 408-243-8388 Fax: 408-243-3188
Sales@century-semi.com
Sales@century-semi.com.tw
www.century-semi.com
Rev.0.0 July 2001
page 1 of 1
Century Semiconductor, Inc.
Taiwan:
No. 2, Industry East Rd. 3rd,
Science-Based Industrial Park, Hsin-Chu, Taiwan
Tel: 886-3-5784866 Fax: 886-3-5784349
The CS6722 is a first-generation transimpedance
amplifier with AGC designed for STM8/OC-24 fiber
optic systems.
The CS6722 amplifies the current generated by a
PIN diode or avalanche photodiode and converts this
to a differential output voltage.
The PINK output of the CS6722 is connected to
V
CC
through a 1k
on-chip resistor. By using a
bypass capacitor at this pin, a filter function
significantly reduces the amount of noise at the
cathode of the photodiode.
Bandwidth from 40kHz to 1.7GHz typical.
Dynamic range typically 21dB.
-21dBm sensitivity, 0dBm maximum with
0.9A/W PIN.
Differential outputs.
2k
differential transimpedance gain.
On-chip Automatic Gain Control (AGC).
Bias voltage for PIN diode.
Supports 3.3V operation.
Available as die.
V
CC
, 5V
GND
DOUTP
PINA
PINK
DOUTN
CS6722
470pF
SDH STM-4
SONE OC-12
Fiber Channel
Gigabit Ethernet
622 Mbps SDH/SONET
High-Speed Fiber Optics
531 Mbps and 1062 Mbps Fiber Channel
2.5Gbps optional Receivers
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