PRELIMINARY DATA SHEET-Rev 1.5
FEATURES
·
·
·
·
·
Single +5 Volt Supply
Automatic Gain Control
-43 dBm Sensitivity
0 dBm Optical Overload
70 MHz Bandwidth
VDD1
AGC Transimpedance Amplifier
SONET OC-1
ATA00501
V
DD2
GND
GND
1992
APPLICATIONS
·
·
·
OC-1 Receiver
FITL
Low Noise RF Amplifier
19F
I
IN
GND
GND
GND GND
C
BY
C
BY
V
OUT
GND
C
AGC
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.
V
DD
AGC
70K
60K
I
IN
GND
or
neg.supply
+
4pF
C
AGC
- 35
VGA
+ 0.8
V
OUT
GND
20pF
PATENT PENDING
C
BY
Photodetector cathode must be connected
To I
IN
for proper AGC operation
Figure 1: ATA00501 Equivalent Circuit
08/2001
1
ANADIGICS [ ANADIGICS, INC ]
