7 Parameter Measurement Information

50

Ω

TEST CIRCUIT

VOLTAGE WAVEFORMS

0 V

3 V

Output

Input

VOL

VOH

tTLH

Generator

(see Note B)

RL

RS-232

Output

tTHL

CL

(see Note A)

SR(tr) =

6 V

t

THL

or t

TLH

1.5 V

1.5 V

3 V

−3 V

3 V

−3 V

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

Figure 7-1. Driver Slew Rate

TEST CIRCUIT

VOLTAGE WAVEFORMS

0 V

3 V

Output

Input

VOL

VOH

tPLH

tPHL

50%

50%

1.5 V

1.5 V

50

Ω

Generator

(see Note B)

RL

RS-232

Output

CL

(see Note A)

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

Figure 7-2. Driver Pulse Skew

TEST CIRCUIT

VOLTAGE WAVEFORMS

50

Ω

50%

50%

−3 V

3 V

1.5 V

1.5 V

Output

Input

VOL

VOH

tPHL

Generator

(see Note B)

tPLH

Output

CL

(see Note A)

A.

CL includes probe and jig capacitance.

B.

The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

Figure 7-3. Receiver Propagation Delay Times

MAX3232

SLLS410O – JANUARY 2000 – REVISED JUNE 2021

www.ti.com

8

Submit Document Feedback

Copyright © 2021 Texas Instruments Incorporated

Product Folder Links: MAX3232