Datasheet

FTLX1371 PRELIMINARY Datacom SFP+ Product Specification – July 2008
© Finisar Corporation - July 25, 2008 DRAFT Rev. A3 Page 5
IV. Electrical Characteristics (T
OP
= -5 to 70 °C, V
CC
= 3.14 to 3.46 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Supply Voltage Vcc 3.14 3.46 V
Supply Current Icc 200 300 mA
Power Dissipation P 1.0 W
Transmitter
Input differential impedance R
in
100
Ω
2
Single ended data input swing Vin,pp 90 350 mV 3
Transmit Disable Voltage V
D
2 Vcc V 4
Transmit Enable Voltage V
EN
Vee Vee+ 0.8 V
Receiver
Termination Mismatch at 1 MHz
ΔZ
M
5 %
Single Ended Output Voltage Tolerance -0.3 4.0 V
Output AC Common Mode Voltage 7.5 mV
RMS
Output Rise and Fall time (20% to 80%) Tr, Tf 30 Ps 5
Relative Noise LRM Links with crosstalk dRNx TBD
equation
dB/Hz 6
Difference Waveform Distortion Penalty dWDP per SFF-8431 dB 7
Differential Voltage Modulation Amplitude VMA 180 600 mV
LOS Fault V
LOS fault
2 Vcc
HOST
V 8
LOS Normal V
LOS norm
Vee Vee+0.8 V 8
Power Supply Noise Tolerance VccT/VccR per SFF-8431 mVpp 9
Notes
:
1. Non-condensing.
2. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
3. Per SFF-8431 Rev 3.0
4. Into 100 ohms differential termination.
5. Measured with Module Compliance Test Board and OMA test pattern.
6. Crosstalk source rise/fall time (20%-80%) is 35 ps.
7. Defined with reference receiver with 14 T/2 spaced FFE taps and 5 T spaced DFE taps.
8. LOS is an open collector output. Should be pulled up with 4.7k – 10kΩ on the host board. Normal operation
is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.
9. As described in Section 2.8.1, SFF-8431 Rev 3.0.