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Fabricante

75185

MULTIPLE RS-232 DRIVERS AND RECEIVERS

Unisonic Technologies 

75185

LINEAR INTEGRATED CIRCUIT

„ PARAMETER MEASUREMENT INFORMATION (Cont.)

RECEIVER TEST CIRCUITS:

Figure 4. For IOS

Figure 5. For VT, VOH, VOL

RECEIVER PROPAGATION AND TRANSITION TIMES:

VDD

Input VCC

Pulse

Generator

(see Note A)

RL

VSS

TEST DIRCUIT

Input

CL

(see Note B)

Output

50%

90%

tTHL

tPHL

50%

10%

50%

50%

10%

VOLTAGE WAVEFORMS

3V

0V

tPLH

90%

VOH

VOL

tTLH

Figure 6.

Note 1. The pulse generator has the following characteristics: tw=25μs, PRR=20kHz, Zo=50Ω, tr=tf<50ns.

2. CL includes probe and jig capacitance.

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

6 of 10

QW-R113-003,F

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