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ADM3485E(2000) Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге
Компоненты Описание
производитель
ADM3485E
(Rev.:2000)
ESD Protected, EMC Compliant, 3.3 V, 20 Mbps, EIA RS-485 Transceiver
ADI
Analog Devices ADI
ADM3485E Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
TIMING SPECIFICATIONS (VCC = +3.3 V, TA = +25؇C)
Parameter
Min Typ Max
DRIVER
Differential Output Delay TDD
1
Differential Output Transition Time
1
Propagation Delay Input to Output TPLH, TPHL 7
Driver O/P to O/P TSKEW
35
8
15
22 35
8
ENABLE/DISABLE
Driver Enable to Output Valid
Driver Disable Timing
Driver Enable from Shutdown
45 90
40 80
650 110
RECEIVER
Time to Shutdown
80
Propagation Delay Input to Output TPLH, TPHL 25
Skew TPLH–TPHL
Receiver Enable TEN
Receiver Disable TDEN
Receiver Enable from Shutdown
190 300
65 90
10
25 50
25 45
500
Specifications subject to change without notice.
TIMING SPECIFICATIONS (VCC = +3.3 V ؎ 0.3 V, TA = TMIN to TMAX)
Parameter
Min Typ Max
DRIVER
Differential Output Delay TDD
1
Differential Output Transition Time
2
Propagation Delay Input to Output TPLH, TPHL 7
Driver O/P to O/P TSKEW
70
8
15
22 70
10
ENABLE/DISABLE
Driver Enable to Output Valid
Driver Disable Timing
Driver Enable from Shutdown
45 110
40 110
650 110
RECEIVER
Time to Shutdown
50
Propagation Delay Input to Output TPLH, TPHL 25
Skew TPLH–TPHL
Receiver Enable TEN
Receiver Disable TDEN
Receiver Enable from Shutdown
190 500
65 115
20
25 50
25 50
600
Specifications subject to change without notice.
ADM3485E
Units Test Conditions/ Comments
ns
RL = 60 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 60 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 27 Ω, CL1 = CL2 = 15 pF, Figure 7
ns
RL = 54 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 110 Ω, CL = 50 pF, Figure 2
ns
RL = 110 Ω, CL = 50 pF, Figure 2
ns
RL = 110 Ω, CL = 15 pF, Figure 2
ns
ns
CL = 15 pF, Figure 8
ns
CL = 15 pF, Figure 8
ns
CL = 15 pF, Figure 6
ns
CL = 15 pF, Figure 6
ns
CL = 15 pF, Figure 6
Units Test Conditions/ Comments
ns
RL = 60 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 60 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 27 Ω, CL1 = CL2 = 15 pF, Figure 7
ns
RL = 54 Ω, CL1 = CL2 = 15 pF, Figure 3
ns
RL = 110 Ω, CL = 50 pF, Figure 2
ns
RL = 110 Ω, CL = 50 pF, Figure 2
ns
RL = 110 Ω, CL = 15 pF, Figure 2
ns
ns
CL = 15 pF, Figure 8
ns
CL = 15 pF, Figure 8
ns
CL = 15 pF, Figure 6
ns
CL = 15 pF, Figure 6
ns
CL = 15 pF, Figure 6
REV. A
–3–

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