HFD7180-XXX 1/2/4/8 GBPS 850NM PIN + PREAMP

NOTES

1.

PR is the average optical power at the fiber face.

2.

PR,OMA is the peak to peak optical power at the fiber face

(Optical Modulation Amplitude)

where ER is the extinction ratio (linear) of the optical

source.

3.

Bandwidth and Low Frequency Cutoff are measured with

a small signal sinusoidal light source with –10dBm

average power

4.

Sensitivity is measured with an optical source with an

extinction ratio of 3dB. For sensitivity measurements at 2

and 4Gbps, bandwidth limiting of the TIA is assumed to

be implemented at the front end of the post amplifier.

5.

Rise/Fall times are corrected for optical source Rise/Fall

times. T2TIA = T

2

MEASURED - T

2

OPTICAL

6.

Value shown is with no external power supply filtering.

7.

Group delay is a sensitive measurement to package

interface, and includes the effects of PD, TIA and package.

Measurement is made with TO leads as short as possible.

8.

DJTIA is specified as contributed DJ by the TIA, obtained

from

DJ2

2

2

OPTICAL

9.

RJTIA is specified as contributed DJ by the TIA, obtained

from

RJ2

2

2

OPTICAL

10. The electrical performance of the ROSA is dependent

upon the quality of the electrical connection between the

TO can and the circuit board. AOC cannot guarantee all

performance specifications for parts without the flex

circuit attached.

PINOUT

()

1

1

2

,

+

−

≡

ER

ER

P

P

R

OMA

R

PIN

HFE7180-001

PIN

HFE7180-413

1

GND (Case)

1

VCC

2

OUTN

2

Case

3

VCC

3

OUTN

4

VPD

4

OUTP

5

OUTP

5

Case

6

PD_Bias