LG1628BXA Ver la hoja de datos (PDF) - Agere -> LSI Corporation
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LG1628BXA Datasheet PDF : 12 Pages
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Preliminary Data Sheet
January 1998
LG1628AXA SONET/SDH 2.488 Gbits/s
Transimpedance Amplifier
Characteristic Curves (at TA = 25 °C, VSS = –5.2 V, CDETECTOR = 0.0 pF, 0.5 pF, 1.0 pF, RLOAD = 50 Ω)
80
77
74
71
1.0 pF
68
0.5 pF
65
0.0 pF
62
59
56
53
50
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
FREQUENCY (GHz)
A. Small-Signal Transimpedance
600
500
400
300
200
100
0
0.001
0.01
0.1
1
10
APD CURRENT (mAavg)
B. Overload Characteristics1
30
1.0 pF
25
0.5 pF
0.0 pF
20
15
10
5
400
350
1.0 pF
300
0.5 pF
0.0 pF
250
200
150
100
50
0
0.0 0.5
1.0 1.5 2.0 2.5 3.0
FREQUENCY (GHz)
3.5 4.0
0
0.0 0.5
1.0 1.5 2.0 2.5 3.0
FREQUENCY (GHz)
3.5 4.0
C. Input Spectral Noise Density
D. Total Input Noise Current
5-5330(F)r.1, 5-5331(F).ar2, 5-5332(F)r.2, 5-5333(F)r.2
1. >25 dB dynamic range requires an external Si dual operational amplifier. The detector polarity is such that current enters the LG1628A (i.e.,
the detector anode is connected to the LG1628A).
Figure 6. Characteristic Curves as Measured on the LG1628AXA Hybrid Integrated Circuit
Lucent Technologies Inc.
9
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