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MOSDESIGN SEMICONDUCTOR CORP.
WIRELESS DOOR CHIME IC
DOOR CHIME
M1D-BL
GENERAL DESCRIPTION
The M1D-BL is a CMOS ASIC for wireless door bell receiver use. It will receive the RF signal from M1E (ENCODER) and give a DING-DONG output if address are checked the same..
FEATURES
• Same Rosc matched to the ENCODER M1E • 28 = 256 codes, “0”, “1” binary • 3 cycles checked each time • BZ : DING-DONG / DING-DING sound • 1T : 1 time option (default 2 times) • RC envelop
APPLICATIONS
• Wireless door bell, visitor chime etc..
BLOCK DIAGRAM
X
Oscillator Y
Freq Divider
DI Output
Central
Driver
1T
Input
Control
A0
Control
Logic unit
A7
ENV VT BZ
*All specs and applications shown above subject to change without prior notice. ( , )
1/5
2002-06-25
MOSDESIGN SEMICONDUCTOR CORP.
M1D-BL Datasheet
