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203x LA Rcvr revC.fm Page 19 Friday, August 10, 2001 3:12 PM
For the Model 2034 the bandwidth is 700 kHz for the
low gain setting, 90 kHz for the medium gain setting,
and 80 kHz for the high gain setting.
a.
10 dB/div
Frequency Response
Noise
39 pA/√Hz
10
2
b.
10
3
10
4
10
Frequency, Hz
5
10
6
Frequency Response
10 dB/div
Figure 8:
Typical
frequency
response and
noise spectra
for the Model
2034 extendedwavelength
InGaAs
photoreceiver
with the gain
set to (a) Low,
(b) Medium,
and (c) High
Noise
2.2 pA/√Hz
10
2
10
3
10
4
10
5
Frequency, Hz
c.
10 dB/div
Frequency Response
Noise
2.2 pA/√Hz
10
2
10
3
10
4
10
5
Frequency, Hz
Large-Area Photoreceivers
Frequency Response and Noise • 19