Data Sheet
August 2000
2611A Broadband Photodiode Module
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
Features
s
s
s
Table 1. Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Ground
Ground
Ground
Ground
Ground
Ground
Open
Open
RF Out
Ground
Bias
Ground
Open
Ground
Flat response, ±0.5 dB
Frequency response up to 1 GHz
High responsivity:
— >0.85 A/W at 1310 nm
— 0.95 A/W at 1550 nm
Internal current gain, 6 dB (typ.)
Up to 3 dBm max. continuous received power
(6 dBm max.)
75
Ω
impedance-matched
s
s
s
Applications
s
Broadband CATV receivers requiring high input
power for improved performance
AGERE [ AGERE SYSTEMS ]
