F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 1
Product Specification
4.25Gbps 1310nm PIN + Preamp, LC ROSA
HFD3141-203
PRODUCT FEATURES
• LC ROSA
• High performance InGaAs PIN
photodiode with separate
transimpedance amplifier
• Low electrical parasitic TO46 package
• Data rates from 155Mbps to 4.25Gbps
• A separate detector bias pin which can
be used for receive power monitoring
• Low bias currents and voltages
The HFD3141-203 use a high-performance InGaAs PIN photo-detector packaged with a
transimpedance amplifier designed to meet performance requirements for data rates up to
4.25Gbps data communication over single-mode optical fiber at 1200nm to 1600nm.
Applications include Ethernet, Fiber Channel and ATM protocols.
PRODUCT SELECTION
Part Number Description
HFD3141-203 LW 5 pin LC ROSA, with separate PD bias for RSSI
HFD3141-203 Product Specification – Apr 2013 F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 2
I. Absolute Maximum Ratings
Parameter Rating
Storage Temperature
-
40 to +85°C
Case Operating Temperature
-
40 to +85°C
Lead Solder Temperature
2
60°C, 10 sec.
Power Supply Voltage
-
0.5V to 4V
Incident Optical Power +3 dBm average, +6 dBm peak
ESD Exposure (Human Body Model) 225V
1
1Heel and wrist straps must be used on a properly grounded workstation
Notice
Stresses greater than those listed under “Absol ute Maximum Ratings”
may cause permanent damage to the device. This i s a stress rating
only and functional operation of the device at these or any other
conditions above those indicated in the operations section for
extended periods of time may affect reliability.
Notice
The inherent design of this component causes it to be sensitive to
electrostatic discharge (ESD). To prevent ESD-induced damage
and/or degradation to equipment, take normal ESD precautions when
handling this product
HFD3141-203 Product Specification – Apr 2013 F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 3
II. Electro-Optical Characteristics
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)
()
112
,+
−
≡ER
ERP
PR
OMAR 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 –
12dBm average power
4. RMS input referred optical noise equivalent power is obtained by measuring the RMS output noise
into a 3200 MHz, 4-pole Bessel-Thompson filter then dividing by the responsivity. A scaling factor of
14 is used to predict a BER of 10-12.
Parameters Test Condition Symbol Min. Typ. Max. Units Notes
Data Rate DR 0.15 4.25 Gbps
Supply Voltage 3.0 3.3 3.6 V
Supply Current PR =0μW, RL=50
Ω
AC
coupled ICC 30 45 mA 1
Optical Return Loss PR =-12dBm ORL 12 dB 1
Input Optical Wavelength
λ
P 1200 1310 1600 nm
Maximum Input Power before
Overload P
MAX
-3.0 0 dBm
Differential Output Voltage Swing PR,OMA= -12Bm,
AC Coupled to RL=50Ω Vo(pk-pk) 150 225 350 mV 1,2
Differential Responsivity PR,OMA = -12dBm,
AC Coupled to RL=50Ω R 2250 3750 5250 V/W 1,2
-3dB Optical/Electrical Bandwidth PR,OMA =-12dBm BW 2 4 GHz 1,2,3
Low Frequency –3dB Cutoff PR,OMA =-12dBm BWLF 10 KHz 1,2,3
Output Impedance ZOUT 42 50 58 Ω
Output Return Loss F<3GHz S22 8 12 dB
RMS Input Referred Noise
Equivalent Power 3.2GHz, 4-pole BT Filter,
PR=0uW (Dark), BER
10^-12
NEP 20
μW, OMA 4
Sensitivity, OMA DR = 1.0625, 1.25Gbps S -23 -20 dBm 5
DR = 2.125, 2.5Gbps -23 -20
DR = 3.125Gbps -21 -18
DR = 4.25Gbps -18 -16
Rise/Fall Time PR,OMA =-12dBm, (20%-
80%) TR/TF 80 120 ps 2,7
Pulse Width Distortion PWD 5 %
Power Supply Rejection Ratio PR =0μW (Dark),
5MHz<F<2GHz PSRR 20 dB 1,8
Monitor Current Slope PR =-12dBm IMON 0.7 0.8 0.95 A/W 9
Monitor Current Offset PR =0mW IOFFSET 10 nA
PD Bias Voltage PDBIAS 2.5 Vcc Vcc+0
.5 V 13
Group Delay PR,OMA = -12dBm,
AC Coupled to RL=50Ω
2MHz<F<2GHz
Delay -50 50 ps 10
Deterministic Jitter PR,OMA = -12dBm,
AC Coupled to RL=50Ω DJTIA 30 40 ps 11
Random Jitter PR,OMA = -12dBm,
AC Coupled to RL=50Ω RJTIA 3 5 ps 12
HFD3141-203 Product Specification – Apr 2013 F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 4
5. Sensitivity is measured with an optical source with an extinction ratio of 3dB.
6. Stressed receiver sensitivity is measured with 3.5dB vertical eye closure (intersymbol interferen ce) 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 ex ternal power supply filtering.
9. The monitor current slope is measured as the current into the PDBIAS 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. DJTIA is specified as contributed DJ by the TIA, obtained from 222 OPTICALTOTALTIA DJDJDJ −=
12. RJTIA is specified as contributed DJ by the TIA, obtained from 222 OPTICALTOTALTIA RJRJRJ −=
13. If external bias voltage is applied to Vpd wh ile Vcc is extern ally unbiased, internal biasing of the TIA
will occur, resulting in erroneous RSSI current.
III. Interface Connection
VCC
VPD
Gnd
VOUTN
VOUTP 50ς
50ς
100ς12.5x
RSSI~1V/mW
@ 1310nm
VPD
100nF
100ς
100nF
Limiting Amp
HFD3141-203
Note: 100ς resistor only needed with
high impedence limiting amplifiers
VCC
Optional RSSI implementation is shown in blue.
Optional 100Ω differential termination for high impedance limiting amplifiers is shown in red.
Recommended bias filter network
Note, better performance will be obtaine d if a fe r rite be ad is use d in place of the induc tor.
22uH
100uF 100nF
IN OUT
HFD3141-203 Product Specification – Apr 2013 F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 5
IV. Environmental Specifications
Parameter Symbol Min Typ Max Units Ref.
Case Operating Temperature Top -40 85 °C
Sto rage Temperatu re Tsto -40 85 °C
V. Mechanical Specifications
(dimensions are in mm)
HFD3141-203 Product Specification – Apr 2013 F i n i s a r
Confidential an d Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 6
VI. Revision History
Revision Date Description
A1 4/26/2013
• Document created.
VII. For More Information
Finisar Corporation
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com
