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| DOOR CHIME WIRELESS DOOR CHIME IC GENERAL DESCRIPTION M1D-BL 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 ENV DI Central 1T A0 Input Control Control Logic unit Output Driver VT BZ A7 *All specs and applications shown above subject to change without prior notice. ( , ) 1/5 2002-03-04 DOOR CHIME WIRELESS DOOR CHIME IC ABSOLUTE MAXIMUM RATING Parameter Supply Voltage Input Voltage Operating Temperature Storage Temperature Rating -0.3 to 5.0 -0.2~VDD +0.2 -20 to 75 -50 to 125 M1D-BL (TA=25) Unit V V ELECTRICAL CHARACTERISTICS Characteristics Operating Voltage Operating Current Quiescent Current Output Drive Current Input Voltage Oscillator Frequency Sym. VDD IOP ISB IO VIH VIL Fosc Min. 2.4 1 VDD -0.2 VSS Typ. 4.5 1 0.3 VDD VSS 80 Max. 5 10 1 VDD VSS +0.2 Unit V A mA mA V KHz External 30% No load @VDS=1.2V Conditions PIN DESCRIPTION No. 1~8 9 10 11 12 13 14 15 16 17 18 Name A0~A7 VSS TEST ENV BZ DI X Y VT 1T VDD Description 3 states address inputs Negative power supply Testing use RC envelop Audio output Data input Oscillator input Oscillator output Valid transmit OPEN : 2 times VDD : 1 time Positive power supply A0 A1 A2 A3 A4 A5 A6 A7 VSS M1D-BL 1 18 VDD 1T VT Y X DI BZ ENV 9 10 TEST 2/5 2002-03-04 DOOR CHIME WIRELESS DOOR CHIME IC PAD ASSIGNMENT & POSITION M1D-BL 4 3 2 1 5 6 7 8 9 10 11 12 13 14 Y 18 X 17 16 15 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 NAME BZ DI X Y VT 1T VDD A0 A1 A2 A3 A4 A5 A6 A7 VSS TEST ENV X 635 425 192 -639 -639 -639 -639 -639 -639 -639 -126 107 402 635 635 635 635 635 UNIT : um Y 812 812 812 812 534 178 -55 -265 -505 -810 -810 -810 -810 -810 -600 -367 -157 76 * CHIP SIZE ~ 1.7 x 2.2 mm2 * IC substrate should be connected to VDD in PCB(PCB IC VDD) TIMING WAVEFORM (1) BIT FORMAT "0" "OPEN" (2) TIMING DIAGRAM DI 4 WORDS 4 WORDS 4 WORDS VT BZ 3/5 2002-03-04 DOOR CHIME WIRELESS DOOR CHIME IC OPERATION FLOWCHART M1D-BL Power ON Stand-by N Data in? N Address matched? Store data/add N Match previous stored data/add? N Check completed? VT high Ding-Dong output 4/5 2002-03-04 DOOR CHIME WIRELESS DOOR CHIME IC APPLICATION DIAGRAM M1D-BL A0 A1 VDD IR / RF M1E VDD A0 DO Y A1 A2 Rosc A3 Y Rosc 1 18 DO X IR / RF A2 A3 A4 A5 1.9 x 1.9mm2 =VDD M1E X TE D3 A4 A5 A6 A7 VSS 9 10 TE D3 A6 A7 VSS A0 A1 A2 VDD VT M1D-BL Y A0 IR / RF VDD IR / RF 1 18 1T Y X DIN BZ EN Rosc 1T A1 A2 A3 A4 M1D-BL 1.7 x 2.2mm =VDD 2 Rosc VDD X A4 DI BZ A6 1M A5 VDD A3 VDD VDD 1M A5 A6 A7 VSS ENV 4.7F 330K VDD A7 VSS 9 10 330K 4.7F VDD D3 OPEN VSS SOUND DING DONG DING DING 5/5 2002-03-04 |
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