RE46C120
CMOS Ionization Smoke Detector ASIC
Product Specification
R&E International
Typical Application
Figure 2
Notes:
1.
2.
3.
4.
Float or connect pin 4 to VDD for NFPA72 horn pattern, connect to VSS for 2/3 duty cycle continuous tone
R3, R4 and C1 are typical values and may be adjusted to maximize sound pressure.
C2 should be located as close as possible to the device power pins.
Route the pin 8 PC board trace away from pin 7 to avoid coupling.
Telephone 610.992.0727
Page 5 of 7
E-mail: rande@randeint.com
DS-RE46C120-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
Facsimile 610.992.0734
RANDE [ R & E INTERNATIONAL, INC. ]
