SP483ECP-L 查看數據表（PDF） - Exar Corporation
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SP483ECP-L Datasheet PDF : 12 Pages
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ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
VCC.......................................................................+7V
Input Voltages
Logic.........................-0.3V to (Vcc + 0.5V)
Drivers......................-0.3V to (Vcc + 0.5V)
Receivers.........................................+/-15V
Output Voltages
Logic.........................-0.3V to (Vcc + 0.5V)
Drivers.............................................+/-15V
Receivers..................-0.3V to (Vcc + 0.5V)
Storage Temperature.......................-65˚C to +150˚C
Power Dissipation..........................................500mW
TMIN to TMAX and VCC = +5.0V +/-5% unless otherwise noted.
PARAMETERS
MIN. TYP.
ELECTRICAL CHARACTERISTICS
MAX. UNITS CONDITIONS
SP483E DRIVER
DC Characteristics
Differential Output Voltage
GND
Vcc
Volts Unloaded; R = ∞ ; See Figure 1
Differential Output Voltage
2
Vcc
Volts With Load; R = 50Ω (RS-422);
See Figure 1
Differential Output Voltage
1.5
Vcc
Volts With Load; R = 27Ω (RS-485);
See Figure 1
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary states
0.2
Volts R = 27Ω or R = 50Ω; See Figure 1
Driver Common Mode Output
Voltage
3
Volts R = 27Ω or R = 50Ω; See Figure 1
Input High Voltage
2.0
Volts Applies to DE, DI, RE
Input Low Voltage
0.8
Volts Applies to DE, DI, RE
Input Current, Driver Input
10
µA Applies to DI
Input Current, Control Lines
1
µA Applies to DE, RE
Driver Short Circuit Current
VOUT = HIGH
VOUT = LOW
SP483E DRIVER
+/-250
+/-250
mA -7V ≤ VO ≤ +12V
mA -7V ≤ VO ≤ +12V
AC Characteristics
Max. Transmission Rate
Driver Input to Output, tPLH
Driver Input to Output, tPHL
Driver Skew
Driver Rise or Fall Time
250
kbps RE = 5V, DE = 5V; RDIFF = 54Ω,
CL1 = CL2 = 100pF
250
800
2000
ns
See Figures 3 & 5, RDIFF = 54Ω,
CL1 = CL2 = 100pF
250
800
2000
ns
See Figures 3 & 5, RDIFF = 54Ω,
CL1 = CL2 = 100pF
100
800
ns See Figures 3 and 5,
tSKEW = |tDPHL - tDPLH|
250
2000
ns
From 10%-90%; RDIFF = 54Ω
CL1 = CL2 = 100pF;
See Figures 3 and 6
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP483E_100_020912
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