AGC Transimpedance Amplifier
SONET OC-3
FEATURES
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·
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Single +5 Volt Supply
TO Package Compatible
Automatic Gain Control
-38 dBM Sensitivity
0 dBm Overload
175 MHz Bandwidth
ATA01504
PRELIMINARY DATA SHEET-Rev 1
APPLICATIONS
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SONET OC-3/SDH STM-1 (155 Mb/s) Receiver
FDDI, Ethernet Fiber LAN
Low Noise RF Amplifier
D1C
PRODUCT DESCRIPTION
The ANADIGICS ATA01504 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
into an output voltage. The ATA01504 offers a
bandwidth of 175MHz, a dynamic range of 38dB and
an alternate pad layout as compared to the ATA01501.
It is manufactured in a GaAs MESFET process and
is available in bare die form.
V
DD
AGC
19K
70K
+
C
AGC
4.5 pF
- 45
VGA
+ 0.8
V
OUT
I
IN
GND
or
neg.supply
GND
US PATENT
5442321,5602510,5047728
Photodector cathode must be connected
to I
IN
for proper AGC operation
Figure 1: Equivalent Circuit
08/2001
ANADIGICS [ ANADIGICS, INC ]
