ATA00501D1C Datasheet, PDF (1/8 Pages) ANADIGICS, Inc – AGC TRANSIMPEDANCE AMPLIFIER

FEATURES
· Single +5 Volt Supply
· Automatic Gain Control
· -43 dBm Sensitivity
· 0 dBm Optical Overload
· 70 MHz Bandwidth
APPLICATIONS
· OC-1 Receiver
· FITL
· Low Noise RF Amplifier
ATA00501
AGC Transimpedance Amplifier
SONET OC-1
PRELIMINARY DATA SHEET-Rev 1.5
VDD2
VDD1
GND
19F
GND
IIN
1992
GND
VOUT
GND GND GND CBY CBY GND ^CAGC GND
D1C
S2
12 Pin 4 Sided SQFP
Package
PRODUCT DESCRIPTION
The ANADIGICS ATA00501 is a 5V low noise
transimpedance amplifier with AGC designed to be
used in OC-1 fiber optic links. The device is used in
conjunction with a photodetector (PIN diode or
avalanche photodiode) to convert an optical signal
into an output voltage. The ATA00501 has a bandwidth
of 70MHz and a dynamic range in excess of 40dB. It
is manufactured in a GaAs MESFET process and
available in bare die form or a 12 pin SQFP package.
VDD
AGC
IIN
GND
or
neg.supply
20pF
60K
- 35
VGA
70K
+
CAGC
4pF
+ 0.8
VOUT
PATENT PENDING
GND
CBY
Photodetector cathode must be connected
To IIN for proper AGC operation
Figure 1: ATA00501 Equivalent Circuit
08/2001
1