HFD3081-108 Finisar Corporation, HFD3081-108 Datasheet - Page 4

• Manufacturer Part Number: HFD3081-108
• Description: Photodetector 4-Pin TO-46
• Manufacturer: Finisar Corporation

Specifications of HFD3081-108

• Package: 4TO-46
• Rise Time: 0.12 ns

HFD3081-108
NOTES
1.
2.
3.
4.
5.
P R is the average optical power at the fiber face. No loss
in external optical system is assumed; any actual power
loss in external optics should be considered in the system
design.
P R,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.
Bandwidth and Low Frequency Cutoff are measured with
a small signal sinusoidal light source with –12dBm
average power
RMS input referred optical noise equivalent power is
obtained by measuring the RMS output noise into a 1875
MHz, 4-pole Bessel-Thompson filter then dividing by the
responsivity. A scaling factor of 14 is used to predict a BER
of 10
Sensitivity is measured with an optical source with an
extinction ratio of 3dB.
P
R
,
OMA
-12.
≡
2
P
R
ER
(
ER
+
1
−
2.5GBPS 850NM PIN + PREAMP TO-46 PACKAGE
1
)
6.
7.
8.
9.
10. DJ
11. RJ
Stressed receiver sensitivity is measured with 3.5dB
vertical eye closure (intersymbol interference) and with
0.3UI of jitter added. The measurement technique is
defined in IEEE 802.3ae.
Rise/Fall times are corrected for optical source Rise/Fall
times.
T
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.
from
DJ
from
RJ
Value shown is with no external power supply filtering.
2
TIA
TIA
2
TIA
2
TIA
TIA
=T
is specified as contributed DJ by the TIA, obtained
=RJ
is specified as contributed DJ by the TIA, obtained
=DJ
2
MEASURED
2
2
TOTAL
TOTAL
- RJ
- DJ
-T
2
2
OPTICAL
OPTICAL
2
OPTICAL