Advance Data Sheet
September 2000
R768-Type OC-768/STM-256
Lightweight Receiver
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 operations section of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Positive Supply Voltage
Photodiode Forward Current*
Maximum Reverse Bias
Optical Input Power, PIN
Operating Case Temperature
Storage Temperature
Lead Soldering Temperature
Lead Soldering Time
Symbol
V
CC
I
PD
V
B
P
MAX
T
C
Tstg
—
—
Min
5.0
—
—
—
0
–40
—
—
Max
7.0
1
5
8
65
85
250
10
Unit
V
mA
V
dBm
°C
°C
°C
s
* Device is normally reverse biased. Forward biasing the photodiode can compromise device performance and reliability.
Optical Characteristics
Table 2. Optical Characteristics
(T
A
= 25 °C)
Parameter
Optical wavelength for Rated Sensitivity
Sensitivity, PIN
Maximum Optical Input Power, Average, PIN
Optical Return Loss
Responsivity of PIN
,
λ
= 1.55
µm
Total Dark Current
Polarization-dependent Loss
Symbol
λ
P
LOW
P
HIGH
—
ℜ
PIN
I
D
PDL
Min
1.480
—
—
–27
—
—
—
Typ
—
–7
3
–30
0.7
0.5
—
Max
1.610
—
—
—
—
—
0.5
Unit
µm
dBm
dBm
dBm
A/W
µA
dB
Agere Systems Inc.
3
AGERE [ AGERE SYSTEMS ]
