ADM3202ARU-REEL7 datasheet(5/16 Pages) AD

Nome de Peças	ADM3202ARU-REEL7

Descrição Electrónicos	Low Power, 3.3 V, RS-232 Line Drivers/Receivers

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Fabricante Electrônico	AD [Analog Devices]

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5 / 16 page

ADM3202/ADM3222/ADM1385

Rev. E | Page 5 of 16

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

PIN CONFIGURATIONS (N, R, RU, AND RW PACKAGES)

C1+

1

V+

2

C1–

3

C2+

4

VCC

16

GND

15

T1OUT

14

R1IN

13

C2–

5

R1OUT

12

V–

6

T1IN

11

T2OUT 7

T2IN

10

R2IN 8

R2OUT

9

ADM3202

TOP VIEW

(Not to Scale)

Figure 4. N, R, RU, and RW Packages Pin Configuration

EN 1

C1+

2

V+

3

C1– 4

SD

18

VCC

17

GND

16

T1OUT

15

C2+

5

C2– 6

V– 7

R1IN

14

R1OUT

13

T1IN

12

T2OUT 8

T2IN

11

R2IN 9

R2OUT

10

ADM3222

TOP VIEW

(Not to Scale)

Figure 5. N and RW Packages Pin Configuration

PIN CONFIGURATIONS (RS AND RU PACKAGES)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

C1+

V+

C1–

V–

C2–

C2+

EN

VCC

GND

T1OUT

NC

R1OUT

R1IN

R2OUT

R2IN

T2OUT

NC

T2IN

T1IN

SD

ADM3222

(SSOP/TSSOP)

TOP VIEW

(Not to Scale)

NC = NO CONNECT

Figure 6. RS and RU Packages Pin Configuration

DD 1

C1+ 2

V+ 3

C1– 4

SD

20

VCC

19

GND

18

T1OUT

17

C2+ 5

C2– 6

V– 7

R1IN

16

R1OUT

15

T1IN

14

T2OUT 8

T2IN

13

R2IN 9

R2OUT

12

NC 10

NC

11

NC = NO CONNECT

ADM1385

(SSOP)

TOP VIEW

(Not to Scale)

Figure 7. RS Package Pin Configuration

Table 3. Pin Function Descriptions

Mnemonic

Description

VCC

Power Supply Input (3.3 V ± 0.3 V).

V+

Internally Generated Positive Supply (+6 V nominal).

V–

Internally Generated Negative Supply (−6 V nominal).

GND

Ground Pin. Must be connected to 0 V.

C1+, C1–

External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF

can be used.

C2+, C2–

External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF

can be used.

TxIN

Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels.

TxOUT

Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±9 V).

RxIN

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

RxOUT

Receiver Outputs. These are CMOS output logic levels.

EN

(ADM3222 only) Receiver Enable. Active low. When low, the receiver outputs are enabled. When high, they are three-stated.

SD

(ADM3222 only) Shutdown Control. Active low. When low, the charge pump is shut down and the transmitter outputs

are disabled.

SD

(ADM1385 only) Shutdown Control. When low, the charge pump is shut down and all transmitters and receivers are disabled.

DD

(ADM1385 only) Driver Disable. When low, the charge pump is turned off and the transmitters are disabled. The receivers

remain active.

NC

No Connect.

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