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Data Sheet
2
Operating Characteristics
Case Temperature = 25°C unless otherwise specified
Notes:
[1] Optical Wavelength between 1525-1575nm. Data to 1610nm available on request.
[2] Measured with 9.95328Gb/s NRZ 1031-1 PRBS data and no FEC.
[3] Load impedance is 50
Ω AC-coupled.
[4] Excludes APD responsivity.
[5] Differential.
[6] Single ended.
[7] Not polarity sensitive.
[8] Response time quoted is to achieve 99% of the desired attenuation value.
Parameter
Symbol
Measurement
Min
Typ
Max
Unit
Conditions
Optical sensitivity BOL
[1] [2]
Sens
231-1 PRBS
-26.5
-25.0
dBm
BER<10-12
V
APD=VM10
Sensitivity penalty EOL
231-1 PRBS
0.75
1.0
dB
over temperature
[1] [2]
BER<10-12
V
APD=VM10
T=-5 to +75°C
Deviation from linear phase
DC - 6GHz
-10
+10
°
High frequency -3dB corner
f
H
V
APD=VM10
7
7.5
GHz
Small signal
Low frequency -3dB corner
f
L
40
kHz
Transimpedance gain
[3] [4] [5]
T
Z
Small signal
1.1
1.6
2.3
k
Ω
Maximum output voltage6
V
OUT
Peak-to-peak
600
700
mV
Return loss
S
22
DC to 7.0GHz
-8
dB
Optical overload
[2]
P
SAT
0dB Attenuation
-3
-1
dBm
V
APD=VM3
BER<10-12
Optical overload extension
With VOA actuated
+13
dBm
APD breakdown voltage
V
br
T=25°C
25
40
V
I
APD=10mA
APD breakdown voltage
T
Vbr
0.030
0.045
0.061
V/°C
temperature coefficient
Dark current
I
d
At 90% of V
br
100
nA
Amplifier bias current
I
cc
75
95
mA
Input current for
I
In lim
Peak-to-peak
0.5
mA
output limiting
VOA maximum attenuation
Att
20
30
dB
VOA control voltage
[7]
V
Att
Attenuation = 20dB
5.5
9
V
VOA current
l
Att
Attenuation = 20dB
6
7.2
mA
VOA power dissipation
P
Att
Attenuation = 20dB
33
65
mW
(continuous)
VOA response time
[8]
From attenuation =
5
10
ms
1dB to 20dB
Polarisation dependent loss
PDL
VOA unbiased
0.15
dB
Polarisation dependent loss
PDL
VOA biased
0.4
dB
Thermistor resistance
R
TH
T=25°C
10
k
Ω
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