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| 型号： | EVAL-ADM2687EEBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL ADM2687 |
| 标准包装： | 1 |
| 主要目的： | 接口，收发器，RS-422/RS-485 |
| 已用 IC / 零件： | ADM2687 |
| 已供物品： | 板 |
ADM2682E/ADM2687E
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
GND 1 1
V CC 2
16 GND 2
15 V ISOIN
RxD 3
RE 4
DE 5
TxD 6
V CC 7
ADM2682E/
ADM2687E
TOP VIEW
( Not to Scale)
14 A
13 B
12 Z
11 Y
10 V ISOOUT
GND 1 8
9
GND 2
NOTES
1. PIN 10 AND PIN 15 MUST BE
CONNECTED EXTERNALLY.
Figure 2. Pin Configuration
Table 10. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
GND 1
V CC
RxD
RE
DE
TxD
V CC
GND 1
GND 2
V ISOOUT
Y
Z
B
A
V ISOIN
GND 2
Description
Ground, Logic Side.
Logic Side Power Supply. It is recommended that a 0.1 μF and a 0.01 μF decoupling capacitor be fitted between
Pin 2 and Pin 1.
Receiver Output Data. This output is high when (A ? B) ≥ ?30 mV and low when (A ? B) ≤ –200 mV. The output is
tristated when the receiver is disabled, that is, when RE is driven high.
Receiver Enable Input. This is an active-low input. Driving this input low enables the receiver, while driving it high
disables the receiver.
Driver Enable Input. Driving this input high enables the driver, while driving it low disables the driver.
Driver Input. Data to be transmitted by the driver is applied to this input.
Logic Side Power Supply. It is recommended that a 0.1 μF and a 10 μF decoupling capacitor be fitted between
Pin 7 and Pin 8.
Ground, Logic Side.
Ground, Bus Side.
Isolated Power Supply Output. This pin must be connected externally to V ISOIN . It is recommended that a reservoir
capacitor of 10 μF and a decoupling capacitor of 0.1 μF be fitted between Pin 10 and Pin 9.
Driver Noninverting Output
Driver Inverting Output
Receiver Inverting Input.
Receiver Noninverting Input.
Isolated Power Supply Input. This pin must be connected externally to V ISOOUT . It is recommended that a 0.1 μF
and a 0.01 μF decoupling capacitor be fitted between Pin 15 and Pin 16.
Ground, Bus Side.
Rev. B | Page 8 of 24
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