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ZSD100 Schematic ( PDF Datasheet ) - Zetex Semiconductors

Teilenummer ZSD100
Beschreibung AUTOMOTIVE AND HOUSEHOLD SECURITY SIREN DRIVER
Hersteller Zetex Semiconductors
Logo Zetex Semiconductors Logo 




Gesamt 8 Seiten
ZSD100 Datasheet, Funktion
AUTOMOTIVE AND HOUSEHOLD
SECURITY SIREN DRIVER
ISSUE 6 – JANUARY 1998
ZSD100
INTRODUCTION
The ZSD100 is a frequency swept alarm
signal generator designed specifically for
static and automotive security alarm
systems. One ZSD100, two timing
capacitors, an in-expensive TO92 darlington,
piezo transducer and coupling transformer
is all that is necessary to produce an ear
piercing 120 dB alarm siren.
Including an audio frequency signal
generator, low frequency sweep generator,
disable circuitry and output driver stages,
the ZSD100 provides every function
necessary to produce a standard alarm
signal. Available in either an 8 pin DIL or SO
package the IC gives a low cost compact
solution to siren signal generation. The
device operates from supplies of 4V up to
18V and is ideal for security alarms in battery
powered applications, burglar alarms and
automotive anti theft systems.
FEATURES
4-18V Operating voltage range.
Small external component count.
Direct drive of darlington, mosfet and
IGBT output stages.
Single ended or push-pull output
stages.
Suitable for automotive and static
alarm systems.
Low supply current - 10mA operating
- 1µA sleep mode
Low cost 8 pin DIL & SO packages.
User selected audio and sweep
frequencies.
-40°C to 125°C operating temperature
range.
Choice of modulation waveform.
SCHEMATIC DIAGRAM
R T (INT)
RT
C MOD
SAW
Low
Frequency
Oscillator
Control
Voltage
Audio
Voltage
Controlled
Oscillator
Output
Driver
Oscillator
Output
Q
Q
C OUT
4-321






ZSD100 Datasheet, Funktion
ZSD100
APPLICATIONS CIRCUITS
Piezo Sounder
ZSD100
RT
SAW
VCC
_
Q
C MOD
Q
GND
C OUT
T1
ZTX
605
+12V
Piezo
Sounder
CMOD
COUT
0V
Utilizing a standard autotransformer driven piezo sounder, this circuit indicates a minimum
component count alarm solution. In this configuration a ZTX605 darlington transistor can be
connected directly to the ouput of the IC without the need for base resistors.
Moving Coil Loudspeaker Sounder
ZSD100
RT
SAW
VCC
_
Q
C MOD
Q
GND
C OUT
CMOD
+12V
MPS
2222
330
COUT
MPS
2222
330
ZTX
790A
6Ω
SPEAKER
ZTX
690B
ZTX
790A
ZTX
690B
0V
Moving coil loudspeakers are often used for the very highest output automotive alarm sounders. The
ZSD100 complementary outputs, with the selection of ZTX790A and ZTX690B transistors, can drive
this H bridge ouput circuit without any additional interface components.
4-326

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