GENERAL DESCRIPTION
FEATURES
* Wide operation voltage range, 2.4V to 6V
* Infrared remote control receiver
* Two custom code to separate products
* Eight control functions for continuous signal
* Mulit-key control outputs
* Two toggle signal can be optioned in outputs
* A single terminal type oscillator by means of
RC is provided
* Low power consumption
* High noise immunity
* 14 pin DIP or SO package
APPLICATIONS
* Consumer Products Remote Control
* Toy Remote Control
* Audio Remote Control
PIN ASSIGNMENTS
SM5032C/D is an infrared remote control
decoder utilizing COMOS technology, paired
with SM5021 for transmitter. The remote
control system is capable of controlling eight
functions and CP1 to CP6 can multi-decode.
There is an option for two toggle signal
outputs in these data control functions.
Also there are two custom codes for user to
separate different products.
Page 1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vss
DI
CP1
CP2
CP3
CP4
CP5
V
DD
OSC
C1
C2
CP8
CP7
CP6
SM5032D
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vss
DI
CP1
CP2
CP3
CP4
CP5
V
DD
OSC
C1
C2
TP1
TP2
CP6
SM5032C
V.1.0 May 28,2002
SM5032C/D
DECODER
S
AM
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Microelectronics Corp.
BLOCK DIAGRAM
Pin Name
I/O
Function
Vss
POWER
Negative power supply
DI
I
Signal Input
CP1 ~ CP6
O
Multi-key control outputs
CP7,CP8(TP2/TP1)
Single-dey control outputs
(Toggle function option)
C1,C2
I
Custom code
OSC
I
38KHz OSC pin
V
DD
POWER
Positive power supply
PIN DESCRIPTION
Schmitt-Trigger
Timing Generator
Decoder
Output Driver
Serial To Parallel
Data Decode
DI
OSC
CP1 CP2 CP3 CP4 CP5 CP6 CP7
TP1
CP8
TP2
OPTION
C2
C1
6 Bits
8 Bits
Vss
V
DD
Page 2
V.1.0 May 28,2002
SM5032C/D
DECODER
S
AM
H
OP
Microelectronics Corp.
Page 3
FUNCTION DESCRIPTION
A. Decoder Signal Input Format
Bit Format
Frame Format
455KHz/ 192
Logic 1 is
Logic 0 is
EMPTY
There are four frames, each frame contains four fields while receiving:
a) Frame Head / Three-Bits
1 1 0 (Metal Option )
b) Custom Code / Two-Bits
C1 C2
c) Control Word / Seven-Bits
0 0 0 0 0 0 1 ~ 1 0 0 0 1 1 0
d) Synch Filed / Four-Bits of Empty
B. Receiver Code Table
Start Word Custom Code B1 B2 B3 B4 B5 B6 B7
Receiver
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
C1 C2
C1 C2
C1 C2
C1 C2
C1 C2
C1 C2
C1 C2
C1 C2
0 0 0 0 0 0 1
0 0 0 0 0 1 0
0 0 0 0 1 0 0
0 0 0 1 0 0 0
0 0 1 0 0 0 0
0 1 0 0 0 0 0
1 0 0 0 0 1 1
1 0 0 0 1 1 0
CP1
CP2
CP3
CP4
CP5
CP6
CP7/TP2
CP8/TP1
V.1.0 May 28,2002
SM5032C/D
DECODER
S
AM
H
OP
Microelectronics Corp.
Page 4
C. Receiver Waveform
Normal Condition ( Paired With SM5021A )
Overlap Condition ( Paired With SM5021B )
If more than one data is received, multi-key decode available. ( Except for CP7/CP8 or TP1/TP2)
CP3
TP1
CP2
CP1
CP3
TP1
CP2
CP1
D1
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
K7 K7 K7 K7
K3 K3 K3 K3
K3
K7
K7
K3
K7
[K7+K3]
D1
F F F F F F F F
F F F F
F F F F
F F F F
K1 K1 K1 K1 K2 K2 K2 K2
K1 K1 K1 K1
K2 K2 K2 K2
K1 K1 K1 K1
t<81ms
t<81ms
D1
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
K1 K1 K1 K1
K1 K1 K1 K1
K1 K1 K1 K1
K1
K2
[K2+K1]
[K2+K1]
t>81ms
t<81ms
D1
F F F F
F F F F
F F F F
F F F F
F F F F
K7 K7 K7 K7
K3 K3 K3 K3
K3 K3 K3 K3
K7 K7 K7 K7
K7 K7 K7 K7
t
81ms
t
81ms
t
81ms
t<81ms
t=81ms
t>81ms
[K7+K3]
V.1.0 May 28,2002
SM5032C/D
DECODER
S
AM
H
OP
Microelectronics Corp.
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