MAX3209EEUU Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX3209EEUU

±15kV ESD-Protected, 12V, Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops

Maxim Integrated 

±15kV ESD-Protected, 12V, Dual RS-232 Serial Port

with Low-Power Standby for Motherboards/Desktops

Typical Operating Characteristics (continued)

(VSTBY = +5V, VDD = +12V, C1 = C2 = 0.1µF, TA = +25°C, unless otherwise noted.)

RECEIVER OUTPUT LOW VOLTAGE

vs. SINK CURRENT

0.6

0.5

0.4

0.3

0.2

0.1

0

0123456789

ISINK (mA)

RECEIVER OUTPUT HIGH VOLTAGE

vs. SOURCE CURRENT

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

0 5 10 15 20 25 30

ISOURCE (mA)

Pin Description

PIN

NAME

1–5, 15–19 R_OUT

6, 7, 8, 12,

13, 14

T_IN

9

VSTBY

10

VDD

11

C1+

20–24,

34–38

R_IN

25, 26, 27,

31, 32, 33

T_OUT

28

GND

29

C1-

30

V-

FUNCTION

TTL/CMOS Receiver Outputs

TTL/CMOS Transmitter Inputs

Standby Power Supply for R5 and R10

+12V Single-Supply Voltage

Positive Terminal of the Inverting

Charge-Pump Capacitor

RS-232 Receiver Inputs

RS-232 Transmitter Outputs

Ground

Negative Terminal of the Inverting

Charge-Pump Capacitor

-12V generated by the inverting

charge pump

3.0V

DRIVER

INPUT

1.5V

0

tPHL

tPLH

VOH

3.3V

3.0V

VOUT

0V

-3.0V

-3.3V

tF2

tR2

VOL

tF1

tR1

SIGNAL

GENERATOR

RL

CL

Figure 1. Slew-Rate Test Circuit and Timing Diagram

4 _______________________________________________________________________________________

Share Link: