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2
2
Agere Systems Inc.
Data Sheet
June 2001
Wideband Photodiode Receivers
Description
(continued)
In most cases, the basic photodiode module is inte-
grated into a complete receiver, packaged either as a
flange-mount for extreme environments, or as a plug-in
for integration with Agere Systems Inc.’s System 10000
rack-mountable chassis and power supplies. Electron-
ics within flange-mount and plug-in receivers provide a
reverse bias for the photodiodes and monitor the dc
level of the optical input power, thus providing a fully
integrated wideband product.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Characteristics
1. Specified for <2 mW optical power, <50% modulation depth.
2. The photodiode RF current splits evenly between the internal matching resistor and the external load. (See Agere Systems’ System
Designer’s Guide to RF and Wideband Fiber Optics.)
3. Optical return loss specified for FC-APC connectors or fusion splices only. Other connection methods can degrade optical return loss.
4. SMF-28is a trademark of Corning Incorporated.
Parameter
Symbol
T
OP
Min
Max
Unit
Operating Temperature Range:
Modules and Flange-mount
Plug-ins
Storage Temperature Range:
Modules and Flange-mount
Plug-ins
Input Power:
2510A/B, 2515A.B, 1516A/B/C
2518A/B
Maximum Power for 60 s:
2510A/B, 2515A.B, 1516A/B/C
2518A/B
dc Current:
2510A/B, 2515A/B, 1516A/B/C
2518A/B
–40
0
70
50
°
C
°
C
Tstg
–40
–20
85
65
°
C
°
C
P
IN
2.0 (typ)
15
2.5
16
mW
mW
P
MAX
—
—
4
16
mW
mW
Idc
—
—
2
12
mA
mA
Table 1. Optical Characteristics
Package Type
Device Code
Module
Flange-Mount Receiver
Plug-in Receiver, for 19 in. rack system
2510A/B
1
4510A/B
1
10450A/B
1
2515A/B
1
4515A/B
1
10455A/B
1
2516A/B/C
1
4516A/B/C
1
10456A/B/C
1
2518A/B
4518A/B
10458A/B
Parameters
Specifications
dc Photodiode Responsivity
at 1310 nm, 25 °C
RF Receiver Efficiency (typ)
at 1 GHz
2
Optical Return Loss
3
Pigtail Fiber Type (where applicable)
>0.75 A/W
>0.75 A/W
>0.65 A/W
>0.70 A/W
>0.38
>0.38
>0.33
>0.35
>45 dB
>1 m, 9
μ
m/125
μ
m single-mode SMF-28
4
or equivalent