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| UM3561 Bowin Microelectronics _________________________________________________________ UM3561A Three Siren Sound Generator Features * Four sounds can be selected * Typical 3V operating voltage * 8-pin DIP package form * Power on reset. * A magnetic speaker can be driven by connecting an NPN transistor General Description UM3561 is a low-cost, low-power CMOS LSI designed for use in alarm and toy applications. Since the integrated circuit includes oscillator and selector circuits, a compact sound module can be constructed with only a few additional components. The M3561 contains a programmed mask ROM to simulate siren sound. Absolute Maximum Ratings DC Supply Voltage .......................................... -0.3V to +5.0V Input Voltage Range ...................................... Vss-0.3V to Vdd+0.3V Operating Ambient Temperature .................... -10C to +60C Storage Temperature ...................................... -55C to +125C Electrical Characteristics (Vdd=3V, Vss=0V, Ta=25C, Fosc=106496Hz unless otherwise specified.) Parameter Symbol Min. Typ. Max. Conditions Operating voltage Vdd 2.4V 3V 3.6V Operating Current Idd 150A "H" Input Voltage Vih Vdd-0.2 Vdd "L" Input Voltage Vil Vss Vss+0.2 Frequency Stability 20% Fosc(3.3V)-Fosc(2.7V) F/F Fosc(2.7V) Output Current Io/p 3mA Frequency Deviation -10% +10% F/F Playing modes SEL1 SEL2 Sound Effect NC NC Police Siren Vdd NC Fire Engine Siren Vss NC Ambulance Siren X Vdd Machine Gun NC : No Connection X : Don't Care BOWIN ELECTRONIC COMPANY 1 www.bowin-ic.com.hk UM3561 Bowin Microelectronics _________________________________________________________ Pin Configuration Pin no. 1 2 3 4 5 6 7 8 Symbol SEL2 Vss OUTPUT NC Vdd SEL1 OSC1 OSC2 Description Sound effect selection pin no. 2 Negative power supply Mono-tone output Internal testing pin : Leave open for normal operation Positive power supply Sound effect selection pin no. 1 External oscillator terminal 1 External oscillator terminal 2 Typical Application Circuits FOUR SOUND APPLICATION : 1. Police Siren 2. Fire Engine Siren 3. Ambulance Siren 4. Machine Gun BOWIN ELECTRONIC COMPANY 2 www.bowin-ic.com.hk UM3561 Bowin Microelectronics _________________________________________________________ THREE SOUND APPLICATION : 1. Police Siren 2. Fire Engine Siren 3. Ambulance Siren TWO SOUND APPLICATION : 1. Police Siren 2. Machine Gun Recommended values : R1 = 300k , R2 = 10k, Q = 2SC9013 REV.02-2005 (3 pages) BOWIN ELECTRONIC COMPANY 3 www.bowin-ic.com.hk |
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