Datasheet > ZSD100

ZSD100

更新时间： 2022-09-09 13:01:45

品牌	Logo	应用领域
美台 - DIODES		驱动
页数	文件大小	规格书
8页	146K
描述
AUTOMOTIVE AND HOUSEHOLD SECURITY SIREN DRIVER

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ZSD100 数据手册

ZSD100

FUNCTIONAL DESCRIPTION

The audio signal of the ZSD100 is generated using a squarewave oscillator whose output is capable

of directly driving a wide range of output circuits. To produce a characteristic alarm siren sound, the

frequency of the audio oscillator is swept over a fixed 2:1 range by a second, low frequency oscillator.

The freqencies of both oscillators are controlled by R_T(INT) and capacitors C_MODand C_OUT

R _T(INT)

R _T

C_MOD

Low

Frequency

Oscillator

SAW

Output

Driver

Control

Voltage

Audio

Voltage

Oscillator

Output

Controlled

Oscillator

C _OUT

PIN DESCRIPTIONS

R_T

Optional external resistor for improved frequency control. An external resistor

improves the control of both the modulating and output oscillators.

The R_Tpin is also used to power the device down. Either connecting R_Tto V_CCor

an open circuit will result in the device being disabled.

SAW

C_MOD

Selection of modulation waveform is made using the SAW pin. An open circuit

produces a triangle wave, sawtooth is achieved by connecting SAW to the C_MOD

pin.

An external capacitor is used to program the low frequency modulating oscillator.

The value of C_MODrecommended is between 0.1µF and 100µF.

G_ND

C_OUT

An external capacitor is used to program the output oscillator. The value of C_OUT

recommended is between 1nF and 100nF.

Non inverted output driver

Inverted output driver

V_CC

Issue 8 - June 2007

www.zetex.com

123 4 5 6 7 8

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