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Datasheet: M1E (No company)

WIRELESS DOOR CHIME

 

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