Silan
Semiconductors
INFRARED REMOTE CONTROL
RECEIVER
DESCRIPTION
SC9149A/SC9150A
The SC9149A/SC9150A are CMOS LSIs designed for use on the
infrared remote control receiver, and when this LSI is used in
combination with SC9148A for transmitter, the remote control
system can be constructed. The SC9149A is DIP-16 type and is
capable of controlling 10 functions, while the SC9150A is DIP-24
type and is capable of controlling 18 functions.
DIP-16
SC9149A
FEATURES
* Able to output parallel multiple keying signals sent from the
transmitter (The SC9149A is able to output parallel up to 5
functions, while the SC9150A is able to output parallel up to 6
functions.)
* Output for single pulse, hold pulse and cyclic pulse are provided.
(cyclic pulse is available only for SC9150A)
* A single terminal type oscillator by means of CR is provided.
* Code detection circuit provided for code check with the
transmitter prevents inter-ferences from various types of
machines and apparatus.
SDIP-24
SC9150A
ORDERING INFORMATION
SC9149A
SC9149AL
SC9149AHN
SC9150A
Advanced version DIP-16 package
Advanced Dependent cyclic (toggle) Outputs
Inversed Rxin input
Output format same as “L”, except that when HP1 or HP2 is active, it will clear CP1.
Advanced version DIP-24 package
PIN CONFIGURATION
GND
Rx IN
GND
Rx IN
HP1
HP2
HP3
HP4
HP5
SP5
1
2
3
4
5
6
7
8
16
VDD
GND
Rx IN
HP1
HP2
HP3
HP4
HP5
CP2
1
2
3
16
VDD
HP1
HP2
HP3
HP4
HP5
HP6
CP2
CP1
SP10
SP9
1
2
3
4
5
6
7
8
9
10
11
12
24
VDD
23 OSC
22
21
20
CODE 1
CODE 2
SP1
SP2
SP3
SP4
SP5
SP6
SP7
SP8
15 OSC
14 CODE 2
15 OSC
14 CODE 2
SC9149A
13 CODE 3
12
11
10
9
SP1
SP2
SP3
SP4
4
SC9149AL/
13 CODE 3
5
6
7
8
9149AHN
12 SP1
11
10
9
SP2
SP3
CP1
SC9150A
19
18
17
16
15
14
13
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 1.2
2003.01.21
1
Silan
Semiconductors
BLOCK DIAGRAM
GND
1
VDD
OSC
16
15
OSC
Rx IN
2
SC9149A/SC9150A
Up Counter
3
4
HP1
HP2
HP3
HP4
HP5
SP5
SP4
SP3
Input shift
register
Shift register
Data Check
5
6
Input Pulse
counter
Latch Circuit
7
8
Code
Check
Error
Detection
Output Buffer
9
10
F/F
14
13
12
SP1
F/F
11
SP2
CODE 2 CODE 3
SC9149A Block Diagram
GND
1
VDD
OSC
16
15
OSC
Rx IN
2
Up Counter
3
4
HP1
HP2
HP3
HP4
HP5
CP2
CP1
SP3
Input shift
register
Shift register
Data Check
5
6
Input Pulse
counter
Latch Circuit
7
8
Code
Check
Error
Detection
Output Buffer
9
10
F/F
14
13
12
SP1
F/F
11
SP2
CODE 2 CODE 3
SC9149AL/9149AHN Block Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 1.2
2003.01.21
2
Silan
Semiconductors
GND
1
VDD
OSC
24
23
OSC
Input shift
register
Rx IN
2
SC9149A/SC9150A
3
Up Counter
4
5
Shift register
Data Check
6
7
8
Latch Circuit
9
10
HP1
HP2
HP3
HP4
HP5
HP6
CP2
CP1
SP10
SP9
SP8
SP7
SP6
SP5
SP4
SP3
Input Pulse
counter
Code
Check
Error
Detection
11
Output Buffer
12
13
F/F
F/F
CODE 1 22
CODE 2 21
14
15
16
17
18
20
SP1
19
SP2
SC9150A Block Diagram
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
Characteristic
Supply Voltage
Input / Output Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
DD
V
IN
,V
OUT
P
D
Tamb
Tstg
Value
0 ~ 6.0
Vss-0.3V ~ V
DD
+0.3V
200
-20 ~ +75
-55 ~ +125
Unit
V
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS
(Tamb=25°C,V
DD
=5.0V,Unless otherwise specified)
Parameter
Operating Supply Voltage
Operating Supply Current
Standard OSC Frequency
Oscillation Frequency
Variance Of Oscillation Frequency
By VDD
Variance Of Oscillation Frequency
By Temperature
“H” Level
Output Current
“L” Level
Input Current
“H” Level
Pull-Up Resistor
Input Circuit Threshold Voltage
Hysteresis Width
Symbol
V
DD
I
DD
Sfosc
fosc
∆V
fosc
∆T
fosc
I
OH
I
OL
I
IH
Rup
V
IN
V
HIS
Test Conditions
Ta=25 ~ 75°C
Output without Load
Min
4.5
Typ
Max
5.5
1.0
Unit
V
mA
kHz
kHz
%
%
mA
mA
µA
kΩ
V
V
38
V
DD
=4.5~5.5V
Ta=-30~+75°C
All output, V
OH
=4.0V
All Output, V
OL
=1V
CODE Terminal, V
IH
=5.0V
CODE Terminal
Rx Terminal
Rx Terminal
27
-5
-5
57
5
5
-1.0
1.0
-1.0
10
2.0
1.0
40
3.0
20
2.5
0.8
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 1.2
2003.01.21
3
Silan
Semiconductors
PIN DESCRIPTION
Pin No.
SC9149A
1
2
SC9149AL
/9149AHN
1
2
SC9150A
1
2
SC9149A/SC9150A
Symbol
GND
Rx IN
HP1
~HP5
HP1
~HP6
CP1
~CP2
SP1
~SP3
SP1
~SP5
SP1
~SP10
Terminal
GND
Receiving
signal input
Function
/operation
Instruction signal
with carrier
signal eliminated
is input.
As long as
receiving signal
is input, this
output is held at
“H” level
When receiving
signal is input,
output is
reversed.
When receiving
signal is input,
output is placed
at “H” level only
for a fixed
time.(about
107msec)
Transmitter code
is compared with
a code set at this
terminal and if
they agree each
other, input is
accepted.
A resistor and a
capacitor are
parallel
connected
between this
terminal and
GND.
Input/output
configuration
3~7
--
3~7
--
--
3~8
Continuous
signal
output
Cyclic
signal
output
--
9~8
9~10
F/F
--
8~12
--
12~10
--
--
--
--
11~20
Single-shot
signal
output
V
DD
13,14
13~14
21~22
CODE
Code input
Built-in pull-up resistor.
V
DD
15
15
23
OSC
Timing
oscillation
16
16
24
V
DD
Power
supply
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 1.2
2003.01.21
4
Silan
Semiconductors
FUNCTIONAL DESCRIPTION
1. OSCILLATION CIRCUIT
SC9149A/SC9150A
Timing with transmitter signal and internal operating clock are all decided by this oscillator.
V
DD
osc
C
R
The oscillator has been so far constructed through a combination of a linear amplifier by means of CMOS inverter
in IC and 455kHz ceramic resonator ;however , when SC9149A/SC9150A series are used , a stable oscillator can
be constructed by parallel connecting C and R between the oscillator and GND by a single terminal oscillator .
Oscillation frequency is about 38KHz±5 kHz at R=39kΩ and C=1000pF. (Refer to SCILLATION Frequency
Characteristic below )
Oscillator frequency vs. resistor and capacitor
70
70
60
Oscillator frequency (kHz)
Oscillator frequency (kHz)
V
DD
=5V
R=39kΩ
60
V
DD
=5V
C=1000pF
50
50
40
40
30
30
20
700
900
Capacitor
1100
(pF)
1300
20
26
34
42
50
58
Resistor (kΩ）
2. RECEIVING SIGNAL INPUT CIRCUIT
Vcc
Amp.
Det.
Rx
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 1.2
2003.01.21
5
Analog electronics
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