SC2268 Silan, SC2268 Datasheet

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SC2268

Manufacturer Part Number
SC2268
Description
Manufacturer
Silan
Datasheet

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Part Number:
SC2268
Manufacturer:
KDS
Quantity:
6 262
FAN REMOTE CONTROL ENCODER
DESCRIPTION
specially designed for use with the SC2128. Using a special coding
technique, SC2268 increases noise immunity to a very great extent. It
is housed in 16-Pins DIP Package and has a maximum of eight input
channels. Its high performance features makes SC2268 a must in
every fan and other electrical home appliance remote control
application.
FEATURES
APPLICATIONS
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
* CMOS Technology
* Low power consumption
* Very high noise immunity
* Wide range of operating voltage: Vcc=2.2 ~ 5.0 Volts
* Transmits signals to a maximum of 8 channels
* Start word custom code options available
* Fan remote control
* Air cleaner
* Humidifier
* Heater
The SC2268 is a remote control encoder utilizing CMOS Technology
OSCO
OSCI
I1
I2
I3
I4
I5
I6
I7
I8
15
14
1
2
3
4
5
6
7
8
Key input
scanning
sampling
OSC
and
C4 C5 C6
12
Encoder
11
Timing
circuit
10
Vcc
16
Waveform
Generator
Output
ORDERING INFORMATION
SC2268
SC2268-00
Vss
9
Device
13
Tx OUT
DIP-16-300-2.54
REV: 1.0
Custom code C3=1
Custom code C3=0
Package
SC2268
Page 1 of 7
2004.08.03

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SC2268 Summary of contents

Page 1

... The SC2268 is a remote control encoder utilizing CMOS Technology specially designed for use with the SC2128. Using a special coding technique, SC2268 increases noise immunity to a very great extent housed in 16-Pins DIP Package and has a maximum of eight input channels. Its high performance features makes SC2268 a must in every fan and other electrical home appliance remote control application ...

Page 2

... OSC On, TxOUT is floating “ L” OSC Stops TxOUT is floating. V =2.2V SINK V =1.5V OSC SC2268 Value 0 ~ 6.0 +0.3V CC 500 -20 ~ +70 =3 10%V,Unless otherwise specified) Min. Typ. Max. 2 0 ...

Page 3

... Positive power supply. FUNCTIONAL DESCRIPTION 1.KEY INPUT Up to eight keys can be directly connected to pins I1 ~ I8. Please refer to the diagram right. Furthermore, SC2268 has a buit-in pull-low resistor of about 60K ~ 110K which reduces the need for external components. 2. OSCILLATOR An oscillation circuit can be constructed using the CMOS inverter and Built-in Feedback resistor, 455kHz crystal and two 220pf capacitors ...

Page 4

... Transmission Code Pattern Sectioon): CLK start TRANSMISSION CODE PATTERN The transmission code pattern of SC2268 is given in the table below. Transmission Start word Data Word W1 (I1) (Key pressed) W2 (I2) W3 (I3) W4 (I4) W5 (I5) W6 (I6) W7 (I7) W8 (I8) HANGZHOU SILAN MICROELECTRONICS CO ...

Page 5

... Power on Stand by Key No press? Yes Enable oscillator Debounce Code No correct? Yes One frame code transmit Key No Yes released? SC2268 C3=1(default) Custom Code (C0 to C7) 00110001 00110011 00110101 00110111 00111001 00111011 00111101 00111111 REV: 1.0 2004.08.03 Page ...

Page 6

... SC2268 Note: Please take note that C3(default value)=1. For more details, please refer to Start Word Custom Cord Section. * Place 47uf capacitor as near as possible to the SC2268 Vss pin. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 3V battery 16 I1 Vcc 220pf 15 I2 ...

Page 7

... Persons at a work bench should be earthed via a wrist strap. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed for dispatch in antistatic/conductive containers. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC2268 UNIT: mm REV: 1.0 2004.08.03 Page ...

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