MAX3643(2005) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX3643 Datasheet PDF : 15 Pages
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Burst-Mode Laser Driver
ABSOLUTE MAXIMUM RATINGS
Supply Voltage VCC ..............................................-0.5V to +4.0V
Current into BIAS-, BIAS+, OUT-, OUT+ .......-20mA to +150mA
Voltage at VMSET, VBSET, IN+, IN-, BEN+, BEN-, EN, MDIN,
MDOUT, BENOUT, BIASMON ................-0.5V to (VCC + 0.5V)
Voltage at MODSET, BIASSET, VREF, IMAX ........-0.5V to +3.0V
Voltage at OUT-, OUT+, BIAS-, BIAS+ .....+0.3V to (VCC + 0.5V)
Continuous Power Dissipation (TA = +85°C)
24-Pin TQFN, Multilayer Board
(derate 27.8mW/°C above +85°C) ............................1807mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
OPERATING CONDITIONS
PARAMETER
Supply Turn-On Time
Ambient Temperature
Data Rate
Voltage at VMSET, VBSET
Voltage at BIASMON
Voltage at MDIN
SYMBOL
CONDITIONS
10% to 90%
MIN TYP MAX UNITS
0.001
1000
ms
-40
+85
°C
1250 Mbps
0
1.4
V
0
1.4
V
0
2.56
V
ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +3.6V, TA = -40°C to +85°C. Typical values are at VCC = +3.3V, TA = +25°C, IBIAS = 20mA, IMOD = 30mA, unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Current
ICC
Excluding laser bias and mode currents,
max at IMOD = 85mA, IBIAS = 70mA
32
51
mA
I/O SPECIFICATIONS
LVPECL Differential Input Voltage
VIN
VIN = (VIN+) - (VIN-)
200
1600 mVP-P
LVPECL Common-Mode Input
Voltage
VCM
VCC - VCC - VCC -
V
1.49 1.32 VIN / 4
LVCMOS Output High Voltage
IOH = -100µA
VCC -
V
0.2
LVCMOS Output Low Voltage
IOL = 100µA
0.2
V
BENOUT Propagation Delay
Td
CL = 20pF, from BEN zero crossing to 67%
CMOS level
30
ns
LVCMOS Input Pullup Resistance
75
kΩ
LVCMOS Input Current
LVCMOS Input High Voltage
LVCMOS Input Low Voltage
VIN = 0V or VIN = VCC
50
µA
2.0
VCC
V
0.2
0.8
V
BIAS GENERATOR SPECIFICATIONS
Bias Current Range
Bias Current, Burst Off
BIASSET Current Gain
IBIAS
IBIAS, OFF
GBIAS
VBIAS+, VBIAS- ≥ 0.6V
BEN = low or EN = high
1mA ≤ IBIAS < 2mA, VBSET = VREF
2mA ≤ IBIAS < 10mA, VBSET = VREF
10mA ≤ IBIAS < 70mA, VBSET = VREF
1
70
mA
5
50
µA
88
70
88
110 mA/mA
82.5
88
94.5
2 _______________________________________________________________________________________
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