MITSUBISHI SEMICONDUCTOR
PRELIMINARY
Notice : This is not a final specification Some parametric limits are subject to change.
2. 5Gb/s LASER DRIVER
ML0131
FOR OPTICAL TRANSMITTER
DESCRIPTION
The laser driver IC were designed for use in 2. 5Gb/s lightwave applications.
Photograph of Laser Driver IC
FEATURES
-High speed operation tr/tf = 80ps (RL=25Ω) -ECL/SCFL compatible interface -Adjustable outout current Iout = ˜60mA -Low Power Dissipation Vss = -5. 2V, PD = 700mW
Package Size : 9. 6mm x 7. 6mm x 1. 6mm APPLICATION
- 2. 5Gb/s optical transmitter
CIRCUIT DIAGRAM
VT+
GND VMARK+ VMARKMark Density IMOD
VIN VREF
Level Shift Input Buffer
IOUT
Driverr
IMON
VT-
VSS
VMWA
TYPICAL CHARACTERISTIC (Ta = 25ºC) Output waveform (@2. 5Gb/s) Vss = -5. 2V, IMOD = 3. 2mA (@2. 5Gb/s), PN : 211-1
10 mA/div. 100 ps/div.
MITSUBISHI ELECTRIC
(1/2) as of Sep. , 1997
MITSUBISHI SEMICONDUCTOR
PRELIMINARY
Notice : This is not a final specification Some parametric limits are subject to change.
2. 5Gb/s LASER DRIVER
ML0131
FOR OPTICAL TRANSMITTER
Ratings -7. 5 VSS to 0 -30 to +85 -65 to +150 unit V V ºC ºC
ABSOLUTE MAXIMUM RATINGS (Ta = 25ºC)
Symbol VSS VIN Tc Tstg Parameter Supply Voltage Input Voltage Operating Temperature Storage Temperature
ELECTRICAL CHARACTERISTICS (Ta = 25ºC)
Symbol VSS ISS VREF VIN IOUT IMOD tr tf Parameter Supply voltage Supply current Input reference voltage Input signal voltage Output modulation curvent Adjust modulation current Rise time of modelation voltage Fall time of modulation voltage VSS = -5. 2V VSS = -5. 2V VSS = -5. 2V VSS = -5. 2V VSS = -5. 2V VSS = -5. 2V VSS = -5. 2V ECL SCFL ECL SCFL Test Conditions Min -5. 46 40 Limits Typ Max -5. 2 130 -1. 3 -0. 5 0. 8 1. 0 80 80 -4. 94 170 60 3. 5 unit V mA V V V V mA mA ps ps
BLOCK DIAGRAM OF TEST SYSTEM
1KΩ VMARK+ 25Ω
IOUT GND IMOD VSS -5. 2V
GNDor-2V VT+ Data generator 50Ω
Laser driver IC
VREF
0. 1µF
VT-
VMARK+ IMON
VMAWA -5. 2V
OSC
-0. 1µF
GNDor-2V 1KΩ 25Ω
MITSUBISHI ELECT...
ML0131 PDF File
