參數(shù)資料
型號: SN65HVD
廠商: Texas Instruments, Inc.
英文描述: 3.3-V RS-485 Transceivers(3.3V,RS-485收發(fā)器)
中文描述: 3.3V的RS - 485收發(fā)器(3.3V,RS - 485接口收發(fā)器)
文件頁數(shù): 7/19頁
文件大?。?/td> 142K
代理商: SN65HVD
SN65HVD10,SN65HVD10Q,SN75HVD10
SN65HVD11,SN65HVD11Q,SN75HVD11
SN65HVD12,SN75HVD12
SLLS505E
FEBRUARY 2002
REVISED NOVEMBER 2002
www.ti.com
7
PARAMETER MEASUREMENT INFORMATION
Figure 1. Driver V
OD
Test Circuit
and Voltage and Current
Definitions
Figure 2. Driver V
OD
With Common-Mode
Loading Test Circuit
60
±
1%
IOA
VOD
54
±
1%
0 or 3 V
VOD
0 or 3 V
VOA
VOB
IOB
DE
VCC
II
VI
A
B
_
+
7 V < V(test) < 12 V
DE
VCC
A
B
D
375
±
1%
375
±
1%
VOC
27
±
1%
Input
A
B
VA
VB
VOC(PP)
VOC(SS)
VOC
27
±
1%
CL = 50 pF
±
20%
D
A
B
DE
VCC
Input: PRR = 500 kHz, 50% Duty Cycle,tr<6ns, tf<6ns, ZO = 50
Figure 3. Test Circuit and Definitions for the Driver Common-Mode Output Voltage
CL Includes Fixture and
Instrumentation Capacitance
VOD
RL = 54
±
1%
50
Generator: PRR = 500 kHz, 50% Duty Cycle, tr <6 ns, tf <6 ns, Zo = 50
Figure 4. Driver Switching Test Circuit and Voltage Waveforms
tPLH
tPHL
1.5 V
1.5 V
3 V
2 V
2 V
90%
10%
0 V
VI
VOD
tr
tf
CL = 50 pF
±
20%
CL Includes Fixture
and Instrumentation
Capacitance
D
A
B
DE
VCC
VI
Input
Generator
90%
0 V
10%
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