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参数资料
| 型号： | SN65HVD22EVM |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | SN65HVD22 Evaluation Module(SN65HVD22评估模块) |
| 中文描述： | SN65HVD22评估模块（SN65HVD22评估模块） |
| 文件页数： | 13/25页 |
| 文件大小： | 398K |
| 代理商： | SN65HVD22EVM |
Demonstration of Operation Over Common-Mode Voltage Range
2-3
EVM Setup and Operation
When using a general-purpose signal generator with 50-
output impedance,
make sure that the signal levels are between 0 V and 5 V with respect to J18,
device under test ground (DUT GND), designated as GND2.
Apply the driver input signal (D) to connector J8. Resistor R14 provides
termination impedance matched to a standard 50-
output- impedance signal
generator.
At the driver outputs, the EVM comes with a 100-
resistor (R5) installed
across the differential outputs, as well as resistors R15 and R16, which add
another 102
across the differential outputs. The parallel combination of R5
with R15 and R16 creates a total load of about 50
at the driver outputs.
Figure 2-3.Configuration for Driver Evaluation
W11
R14
51
J8
Input Signal
TP4
W17
P3
U2
7
4
Jumper
6
1
3
2
W4
Driver
Enable
W3
Receiver
Enable
Jumper
Signal Source
With 50
Output
50
Cable
V
CC
V
CC
R5
100
R18
51
R16
51
R16
51
R17
51
Driver
Output
The input/output characteristics of the driver can be observed by probing TP4
(driver input) and either P3 or W17 (driver output). In addition to the
single-ended outputs (with respect to GND2) and the differential outputs
available at P3 and W17, the common-mode output can be observed using
W11 as a test point.
2.2
Demonstration of Operation Over Common-Mode Voltage Range
A unique feature of the HVD2X family is the ability to operate with common-
mode voltages in the range from
–
20 V to 25 V. In order to demonstrate
SN65HVD22 operation over the extended range of common-mode voltage,
two EVMs are required. Figure 2-4 shows how two EVMs and three power
supplies can be used to induce a ground potential difference between EVM1
and EVM2.
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN65HVD22P | 功能描述:RS-485接口IC Extended Common-mode Transceiver RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SN65HVD22PE4 | 功能描述:总线收发器 Extended Common-mode Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN65HVD23 | 制造商:TI 制造商全称:Texas Instruments 功能描述:EXTENDED COMMON-MODE RS-485 TRANSCEIVERS |
| SN65HVD23_10 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Extended Common-Mode RS-485 Transceivers |
| SN65HVD230 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.3-V CAN TRANSCEIVERS |
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