LTC1481C(RevA) Просмотр технического описания (PDF) - Linear Technology
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LTC1481C Datasheet PDF : 8 Pages
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LTC1481
U
SWITCHI G CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (Notes 2, 3) unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
tPLH
tPHL
tSKEW
tr, tf
tZH
tZL
tLZ
tHZ
tPLH
tPHL
tSKD
tZL
tZH
tLZ
tHZ
fMAX
tSHDN
tZH(SHDN)
tZL(SHDN)
tZH(SHDN)
tZL(SHDN)
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
Receiver Input to Output
tPLH – tPHL Differential Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
Maximum Data Rate
Time to Shutdown
Driver Enable from Shutdown to Output High
Driver Enable from Shutdown to Output Low
Receiver Enable from Shutdown to Output High
Receiver Enable from Shutdown to Output Low
RDIFF = 54Ω, CL1 = CL2 = 100pF,
(Figures 3, 5)
CL = 100pF (Figures 4, 6), S2 Closed
CL = 100pF (Figures 4, 6), S1 Closed
CL = 15pF (Figures 4, 6), S1 Closed
CL = 15pF (Figures 4, 6), S2 Closed
RDIFF = 54Ω, CL1 = CL2 = 100pF,
(Figures 3, 7)
CRL = 15pF (Figures 2, 8), S1 Closed
CRL = 15pF (Figures 2, 8), S2 Closed
CRL = 15pF (Figures 2, 8), S1 Closed
CRL = 15pF (Figures 2, 8), S2 Closed
DE = 0, RE =
CL = 100pF (Figures 4, 6), S2 Closed
CL = 100pF (Figures 4, 6), S1 Closed
CL = 15pF (Figures 2, 8), S2 Closed
CL = 15pF (Figures 2, 8), S1 Closed
q 10
q 10
q
q3
q
q
q
q
q 30
q 30
q
q
q
q
q
q 2.5
q 50
q
q
q
q
30
60
ns
30
60
ns
5
10
ns
15
40
ns
40
70
ns
40
70
ns
40
70
ns
40
70
ns
140
200
ns
140
200
ns
13
ns
20
50
ns
20
50
ns
20
50
ns
20
50
ns
Mbits/s
200
600
ns
40
100
ns
40
100
ns
3500
ns
3500
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: All typicals are given for VCC = 5V and TA = 25°C.
TYPICAL PERFOR A CE CHARACTERISTICS
Driver Differential Output Voltage
vs Output Current
70
TA = 25°C
60
50
40
30
20
10
0
0
1
2
3
4
5
OUTPUT VOLTAGE (V)
1481 G01
Driver Differential Output Voltage
vs Temperature
2.5
RL = 54Ω
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1481 G02
Driver Output Low Voltage
vs Output Current
70
TA = 25°C
60
50
40
30
20
10
0
0
1
2
3
4
OUTPUT VOLTAGE (V)
1481 G03
1481fa
3
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