hfd7181-001 Finisar Corporation., hfd7181-001 Datasheet - Page 4

• Manufacturer Part Number: hfd7181-001
• Description: 8 Gbps 850nm Rosa Linear Applications Lc Rosa Package
• Manufacturer: Finisar Corporation.

HFD7181-XXX
NOTES
1.
2.
3.
4.
5.
6.
The data rate can be increased to 10.7Gbps for Fibre
Channel applications with minimal degradation in
performance.
P R is the average optical power at the fiber face.
P R,OMA is the peak to peak optical power at the fiber face
(Optical Modulation Amplitude) Measured with 2 31 PRBS
at 10.3 Gbps.
where ER is the extinction ratio (linear) of the optical source.
The TIA incorporates automatic gain control, which
maintains approximately 300mV differential electrical
output over the entire operating range. Refer to the
chart below for typical differential transimpedance as
a function of both average optical power and optical
modulation amplitude.
Bandwidth and Low Frequency Cutoff are measured with
a small signal sinusoidal light source with –8dBm average
power.
Sensitivity is measured with an optical source with an
P
R
,
OMA
≡
2
P
R
ER
(
ER
+
1
−
8 GBPS 850NM ROSA LINEAR APPLICATIONS
1
)
7.
8.
9.
10. For best sensitivity, a CDR that incorporates EDC may
11. With an ANSI X3.T11 FC-PI-4 specified input stressed eye
12. Harmonic distortion is defined as the ratio of power
13. The electrical performance of the ROSA is dependent
extinction ratio of 3dB, at a bit rate of 8.5Gbps with
BER=1E-12. For 10.57 Gbps, the sensitivity is degraded by
approximately 1dB.
Stressed receiver sensitivity is measured per ANSI X3.T11
FC-PI-4 (8Gbps Fibre Channel) requirements.
Rise/Fall times are corrected for optical source Rise/Fall
times. The corrected value is calculated as the square root
of the difference of the squares of the measured
differential detector output and the source
Value shown is with external power supply filtering.
be required.
(see note 8)
in all harmonic frequencies divided by the power in the
fundamental frequency
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.