RE46C120 Ver la hoja de datos (PDF) - Microchip Technology
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RE46C120 Datasheet PDF : 7 Pages
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RE46C120
CMOS Ionization Smoke Detector ASIC
Product Specification
R&E International
A Subsidiary of Microchip Technology Inc.
Typical Application
Figure 2
Notes:
1. Float or connect pin 4 to VDD through 1.5kOhm minimum for NFPA72 temporal horn pattern, connect to VSS for 2/3 duty cycle
continuous tone.
2. R3, R4 and C1 are typical values and may be adjusted to maximize sound pressure.
3. C2 should be located as close as possible to the device power pins.
4. Route the pin 8 PC board trace away from pin 7 to avoid coupling.
© 2009 Microchip Technology Inc.
DS22157B-page 5
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