AGC Transimpedance Amplifier
SONET OC-3
FEATURES
·
·
·
·
Single +5 Volt Supply
Automatic Gain Control
Excellent Sensitivity
0 dBm Optical Overload
VDD1
ATA01501D1C
ATA01501S2C
Preliminary Data Sheet - Rev 5
V
DD2
GND
GND
1992
19F
I
IN
GND
GND
GND GND
C
BY
C
BY
V
OUT
GND
C
AGC
GND
APPLICATIONS
·
·
·
SONET OC-3 Receiver
FDDIk Ethernet Fiber LAN
Low Noise RF Amplifier
D1
S2
12 Pin 4 Sided
SQFP Package
Electrical Characteristics
(1)
(TA= 25
°
C, VDD=+5.0V + 10%, CDIODE+CSTRAY = 0.5 pF, Det. Cathode to IIN)
PAR AMETER
Transresi stance (RL=
¥
,Idc<500nA)
Transresi stance (RL=50
W
)
(1)
Bandwi dth -3dB (D 1C )
Bandwi dth -3dB (S2C )
Input Resi stance
(2)
Output Resi stance
Supply C urrent
Input Offset Voltage
Output Offset Voltage
AGC Threshold (I
IN
)
(3)
Opti cal Overload
(4)
MIN
5.5
150
130
30
1.4
15
-3
TYP
17
8
175
75
500
50
30
1.6
1.8
30
0
14
16
1
-38
-37
MAX
10
U N IT
K
W
K
W
MHz
MHz
W
1.
2.
3.
4.
5.
6.
7.
60
45
1.9
W
mA
Volts
Volts
mA
dB m
20
nA
m
se c
Input Noi se C urrent
(5)
AGC Ti me C onstant
(6)
Offset Voltage D ri ft
Opti cal Sensi ti vi ty -(D 1C )
(7)
Opti cal Sensi ti vi ty - (S2C )
(7)
Operati ng Voltage Range
Operati ng Temperature Range
+ 4.5
- 40
mV/ º C
dB m
dB m
+ 6.0
85
Volts
ºC
f = 50 MHz
Measured with I
IN
below
AGC Threshold. During
AGC, input impedance will
decrease proportionally to I
IN
Defined as the I
IN
where
Transresistance has
decreased by 50%.
See note on Indirect
Measurement of Optical
Overload.
See note on Measurement
of Input Referred Noise
Current.
C
AGC
= 220 pF
Parameter is guaranteed
(not tested) by design
and characterization
data @155Mb assuming
detector responsivity of 0.9
+ 5.0
ANADIGICS [ ANADIGICS, INC ]
