HFD3141-203 Product Specification
© Finisar Corporation October 2015 Rev. B1 Page 4
6. 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.
7. Rise/Fall times are corrected for optical source Rise/Fall times.
222
OPTICALMEASUREDTIA
TTT −=
8. Value shown is with no external power supply filtering.
9. The monitor current slope is measured as the current into the PD
BIAS
connection.
10. 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.
11. DJ
TIA
is specified as contributed DJ by the TIA, obtained from
22
2
OPTICALTOTALTIA
DJDJ
DJ
−=
12. RJ
TIA
is specified as contributed DJ by the TIA, obtained from
222
OPTICALTOTALTIA
RJRJRJ −=
13. If external bias voltage is applied to Vpd while Vcc is externally unbiased, internal biasing of the TIA
will occur, resulting in erroneous RSSI current.
III. Interface Connection
Optional RSSI implementation is shown in blue.
Optional 100
differential termination for high impedance limiting amplifiers is shown in red.
Recommended bias filter network
Note, better performance will be obtained if a ferrite bead is used in place of the inductor.
V
CC
V
PD
Gnd
V
OUTN
V
OUTP
50
V
50
V
100
V
12.5x
RSSI~1V/mW
@ 1310nm
V
PD
100nF
100
V
100nF
Limiting Amp
HFD3141-203
Note: 100
V
resistor only needed with
high impedence limiting amplifiers
V
CC
