Data Sheet

2

Operating Characteristics

Case temperature = 25°C unless otherwise specified

Parameter

Symbol

Measurement

Min

Typ

Max

Unit

Conditions

Optical sensitivity BOL

[1] [2]

Sens

-18.5

-17.0

dBm

Sensitivity penalty EOL

over temperature

[1] [2]

0.75

1.0

dB

Deviation from linear phase

DC – 6GHz

-10

+10

°

High frequency -3dB corner

f

H

Small signal

8

9.5

GHz

Low frequency -3dB corner

fL

40

kHz

Transimpedance gain

[3] [4] [5]

T

Z

Small signal

1.1

1.6

2.3

k

Ω

Maximum output voltage

[6]

VOUT

Peak-to-peak

600

700

mV

Return loss

S

22

DC to 7.0GHz

-8

dB

Optical overload

[2]

0dB Attenuation

+1

dBm

Optical overload extension

With VOA actuated

+9

dBm

PIN bias voltage

V

pd

5

V

PIN responsivity

[1]

R

0.7

0.8

A/W

Dark current

I

d

10

nA

Amplifier bias current

I

cc

75

95

mA

Input current for

output limiting

I

In_lim

Peak-to-peak

0.5

mA

VOA maximum attenuation

Att

20

30

dB

VOA control voltage

[7]

V

Att

Attenuation = 20dB

5.5

9

V

VOA current

I

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

10

k

Ω

Notes:

[1] Optical Wavelength between 1525-1575nm. Data to 1610nm available on request.

[2] Measured with 9.95328Gb/s NRZ 10

31-1 PRBS data and no FEC.

[3] Load impedance is 50

Ω AC-coupled.

[4] Excludes PIN responsivity.

[5] Differential.

[6] Single ended.

[7] Not polarity sensitive.

[8] Response time quoted is to achieve 99% of the desired attenuation value.