LTC1484C Просмотр технического описания (PDF) - Linear Technology
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LTC1484C Datasheet PDF : 16 Pages
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LTC1484
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5% (Notes 2 and 3) unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP MAX
UNITS
∆VTH
Receiver Input Hysteresis
VCM = 0V, DE = 0
q
± 30
mV
VOH
Receiver Output High Voltage
IOUT = – 4mA, (VA – VB) = 200mV
q
3.5
V
VOL
Receiver Output Low Voltage
IOUT = 4mA, (VA – VB) = – 200mV
q
0.4
V
IOZR
Three-State (High Impedance) Output Current
VCC = Max, 0.4V ≤ VOUT ≤ 2.4V,
q
at Receiver
DE = 0
±1
µA
RIN
Receiver Input Resistance
ICC
Supply Current
–7V ≤ VCM ≤ 12V
q
12
22
kΩ
No Load, Output Enabled (DE = VCC) q
No Load, Output Disabled (DE = 0) q
600 900
µA
400 700
µA
ISHDN
IOSD1
IOSD2
IOSR
Supply Current in Shutdown Mode
Driver Short-Circuit Current, VOUT = High (Note 4)
Driver Short-Circuit Current, VOUT = Low (Note 4)
Receiver Short-Circuit Current
DE = 0, RE = VCC, DI = 0
– 7V ≤ VOUT ≤ 10V
– 7V ≤ VOUT ≤ 10V
0V ≤ VOUT ≤ VCC
q
1
20
µA
35
250
mA
35
250
mA
q
7
85
mA
U
SWITCHING CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
SYMBOL PARAMETER
tPLH
Driver Input to Output
tPHL
Driver Input to Output
tSKEW
Driver Output to Output
tr, tf
Driver Rise or Fall Time
tZH
Driver Enable to Output High
tZL
Driver Enable to Output Low
tLZ
Driver Disable Time from Low
tHZ
Driver Disable Time from High
tPLH
Receiver Input to Output
tPHL
Receiver Input to Output
tSKD
|tPLH – tPHL| Differential Receiver Skew
tZL
Receiver Enable to Output Low
tZH
Receiver Enable to Output High
tLZ
Receiver Disable from Low
tHZ
Receiver Disable from High
tDZR
Driver Enable to Receiver Valid
fMAX
tSHDN
Maximum Data Rate (Note 5)
Time to Shutdown (Note 6)
CONDITIONS
RDIFF = 54Ω, CL1 = CL2 = 100pF
q
(Figures 4, 6)
RDIFF = 54Ω, CL1 = CL2 = 100pF
q
(Figures 4, 6)
RDIFF = 54Ω, CL1 = CL2 = 100pF
q
(Figures 4, 6)
RDIFF = 54Ω, CL1 = CL2 = 100pF
q
(Figures 4, 6)
CL = 100pF (Figures 5, 7) S2 Closed q
CL = 100pF (Figures 5, 7) S1 Closed q
CL = 15pF (Figures 5, 7) S1 Closed q
CL = 15pF (Figures 5, 7) S2 Closed q
RDIFF = 54Ω, CL1 = CL2 = 100pF,
q
(Figures 4, 8)
RDIFF = 54Ω, CL1 = CL2 = 100pF,
q
(Figures 4, 8)
RDIFF = 54Ω, CL1 = CL2 = 100pF,
(Figures 4, 8)
CRL = 15pF (Figures 3, 9) S1 Closed q
CRL = 15pF (Figures 3, 9) S2 Closed q
CRL = 15pF (Figures 3, 9) S1 Closed q
CRL = 15pF (Figures 3, 9) S2 Closed q
RDIFF = 54Ω, CL1 = CL2 = 100pF
q
(Figures 4, 10)
q
DE = 0, RE↑
q
MIN TYP MAX
10
28.5
60
10
31
60
2.5
10
3
15
40
40
70
40
100
40
70
40
70
30
160 200
30
140 200
20
20
50
20
50
20
50
20
50
1600 3000
4
5
50
300 600
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Mbps
ns
3
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