2611A Broadband Photodiode Module
Data Sheet
August 2000
Features
a73 Flat response, ±0.5 dB
a73 Frequency response up to 1 GHz
a73 High responsivity:
— >0.85 A/W at 1310 nm
— 0.95 A/W at 1550 nm
a73 Internal current gain, 6 dB (typ.)
a73 Up to 3 dBm max. continuous received power
(6 dBm max.)
a73 75 Ω impedance-matched
Applications
a73 Broadband CATV receivers requiring high input
power for improved performance
Description
The 2611A is a packaged impedance-matched pho-
todiode module with internal gain designed for use in
optical broadband receivers in fiber-optic networks.
The patented impedance-match technology results in
improved gain-bandwidth product compared to exter-
nal circuits due to control of parasitics between the
photodiode and the transformer.
Additionally, the 2611A is designed for superior dis-
tortion performance at up to 6 dBm (received) input
power.
Pin Information
Table 1. Pin Descriptions
Pin No. Description
1 Ground
2 Ground
3 Ground
4 Ground
5 Ground
6 Ground
7Open
8O
9RF Out
10 Ground
11 Bias
12 Ground
13 Open
14 Ground