ADM202 查看數據表（PDF） - Analog Devices

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ADM202

High Speed, 5 V, 0.1 µF CMOS RS-232 Driver/Receiver

Analog Devices 

Data Sheet

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

C1+ 1

V+ 2

C1– 3

C2+ 4

C2– 5

V– 6

T2OUT 7

R2IN 8

ADM202

TOP VIEW

(Not to Scale)

16 VCC

15 GND

14 T1OUT

13 R1IN

12 R1OUT

11 T1IN

10 T2IN

9 R2OUT

Figure 2. Pin Configuration

ADM202

Table 3. Pin Function Descriptions

Pin No.

Mnemonic Description

1

C1+

External Positive Capacitor 1 Connection. The positive terminal is connected to this pin.

2

V+

Internally Generated Positive Supply (+10 V nominal).

3

C1−

External Negative Capacitor 1 Connection. The negative terminal is connected to this pin.

4

C2+

External Positive Capacitor 2 Connection. The positive terminal is connected to this pin.

5

C2−

External Negative Capacitor 1 Connection. The negative terminal is connected to this pin.

6

V−

Internally Generated Negative Supply (−10 V Nominal).

7, 14

8, 13

T2OUT, T1OUT

R2IN, R1IN

Transmitter (Driver) Outputs. These outputs are RS-232 levels (typically ±10 V).

Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is

connected on each of these inputs.

9, 12

10, 11

R2OUT, R1OUT

T2IN, T1IN

Receiver Outputs. These outputs are TTL/CMOS levels.

Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to VCC is

connected on each input.

15

GND

Ground. This pin must be connected to 0 V.

16

VCC

Power Supply Input, 5 V ± 10%.

Rev. B | Page 5 of 10

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