108894643 데이터 시트보기 (PDF) - Agere -> LSI Corporation
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108894643 Datasheet PDF : 6 Pages
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R768-Type OC-768/STM-256
Lightweight Receiver
Advance Data Sheet
September 2000
Description
Pin Information
Receiver Operation
The R768 40 Gbits/s fiber-optic receiver consists of a
high-speed photodetector (PIN) and a wide-band linear
preamp in a pigtailed surface-mount metal package
with a single-ended V-connector. It is designed for use
in single-mode, high-speed telecommunication applica-
tions at the SONET OC-768 and the ITU-T SDH
STM-256 data rate of 42.5 Gbits/s.
The operating case temperature range for the receiver
is 0 °C to 65 °C.
The receiver is manufactured in a compact, 16-pin sur-
face-mount package with a single-mode optical fiber
pigtail. The fiber pigtail is internally beveled for low
return loss and is available with an FC-PC optical con-
nector.
The received data is dc-coupled.
The receiver requires only a 6 V power supply for oper-
ation, plus an optional VADJUST from –1.0 V to +1.0 V
(see pin descriptions). The photodiode requires a sep-
arate bias voltage: for the PIN, a nominal reverse bias
of 4 V is required.
Table 1. Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
Not Used
GND
Alternate PIN Bias
GND
GND
GND
VADJUST (optional)
GND
GND
GND
GND
VCC
GND
PIN Bias
GND
NC
2
Agere Systems Inc.
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