PRELIMINARY DATA SHEET - Rev 1.6
FEATURES
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Single +5 Volt Supply
Automatic Gain Control
-38 dBm Sensitivity
0 dBm Optical Overload
175 MHz Bandwidth
SONET OC-3/SDH STM-1 (155mb/s) receiver
FDDI Ethernet Fiber LAN
Low Noise RF Amplifier
AGC Transimpedance Amplifier
SONET OC-3
ATA01501
V
DD2
V
DD1
GND
GND
1992
APPLICATIONS
19
I
I
IN
GND
GND
GND GND
C
BY
C
BY
GND
C
AGC
V
OUT
GND
D1
Die Package
PRODUCT DESCRIPTION
The ANADIGICS ATA01501 is a 5V low noise
transimpedance amplifier with AGC designed to be
used in OC-3/STM-1 fiber optic links. The device is
used in conjunction with a photodetector (PIN diode
or avalanche photodiode) to convert an optical signal
S2
12 Pin 4 Sided
SQFP Package
into an output voltage. The ATA01501 offers a wide
bandwidth of 175MHz and a dynamic range of 38dB.
It is manufactured in a GaAs MESFET process and
available in bare die form or a 12 pin SQFP package.
V
DD1
V
DD2
AGC
19 K
70K
+
4pF
I
IN
GND
or
neg.supply
C
AGC
- 45
VGA
+ 0.8
V
OUT
GND
US PATENT
C
BY
Photodector cathode must be connected
to Iin for proper AGC operation
I
IN
Figure 1: Equivalent Circuit
08/2001
2-1
ANADIGICS [ ANADIGICS, INC ]
