三合微科股�½有限公司
S
AM
H
OP
Microelectronics Corp.
SM5021
ENCODER
GENERAL DESCRIPTION
The SM5021A/B is a h i g h p e r f o r m a n c e
infrared remote control encoder utilizing
CMOS technology. Mode A is a signal-key
control and mode B is a multi-key control
during data transmission, supports eight data
key inputs and a LED output to indicate the
status during transmission.
Auto power off function when key is not
pressed to save power, custom codes to
distinguish different products. SM5021
encoder is paired with SM5032 decoder for
more data control applications.
FEATURES
* Wide operation voltage range, 2.4V to 6V
* Eight data key control
* Option of signal-key or multi-key control
* Two custom codes to separate products
* Auto power off for saving power
* LED output to indicate transmission status
* Direct infrared LED 38KHz modulation output
* Low power consumption
* Paired with SM5032 decoder
* 16 pin DIP or SO package
APPLICATIONS
* SM3015 Fan Remote Control
* Audio Remote Control
* Toy Remote Control
* Consumer Products Remote Control
PIN ASSIGNMENT (TOP VIEW)
C1
C2
K1
K2
K3
K4
K5
Vss
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
DOUT
LEDO
OSC2
OSC1
K8
K7
K6
SM5021A/B
Page 1
V.2.0 Mar 8,2002
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
