TK15321 데이터 시트보기 (PDF) - Toko America Inc

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TK15321

Audio Analog Switch

Toko America Inc  

TEST CIRCUITS AND METHODS

33 µF

VCC

SW6

SW3

TK15321

SW7

SW9

SW8

SW4

SW2

SW1

1 kHz

1 Vrms

10 kHz

1 Vrms

SW5

L

H

or

2 Vrms

~

~

10 kΩ

V~

V_

THD

1: The above condition represents 1ch.

2: The above conditions distortion rate of 1-Ach and dynamic range measurement.

3: SW5 is for residual noise measurement.

4: SW8 is for cross talk (ISO or SEP) measurement.

SUPPLY CURRENT (FIGURE 1)

This current is a consumption current with a nonloading

condition.

1) Measure the inflow current to Pin 1 from VCC. This

current is the supply current.

VCC

A

CONTROL LOW/HIGH LEVEL (FIGURE 2)

This level is to measure the threshold level.

1) Input, the VCC to Pin 1. (This condition is the same with

other measurements, omitted from the next for simplicity)

2) Input to Pin 4 with sine wave (f = 1 kHz, V = 1 Vrms).

IN

3) Connect an oscilloscope to Pin 3.

4) Elevate the control voltage from 0 V gradually, until the

sine wave appears at the oscilloscope. This voltage is

the threshold level when the wave appears.

Figure 1

May 1999 TOKO, Inc.

Page 3

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