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INFRAED REMOCON RECEIVER
S5G9802X01
INTRODUCTION
TheS5G9802X01 is a CMOS integrated circuit for the infrared ray remote control transmitter function to be used with the KS9801 for receiver. It can be applied to TV, VCR, VDP, CDP and AV controller. The S5G9802X01 has 18 functions, and a total of 75 commands can be transmitted. These commands are generated by continuous keys with multiple keying and 12 commands by single shot keys. 16-DIP-300A
FEATURES
* * * * * Wide range of operating supply voltage : VDD = 2.0V - 5V Low power consumption : IDS<1 m A at standby mode Containing ceramic oscillation circuit Function of multiple keying Adaptable to various models using custom code bits
ORDERING INFORMATION
Device S5G9802X01-D0B0 Package 16-DIP-300A Operating Temperature - 20C - + 75C
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S5G9802X01
INFRAED REMOCON RECEIVER
BLOCK DIAGRAM
VDD 16 XI 2 OSC DEVIDER VSS 1
XO 3
CLOCK GENERATOR
ADDRESS COUNTER & DECODER
CONTINUOUS/SINGLE SHOT CODE GENERATOR CIRCUIT
TIMING COUNTER
OUTPUT SYNTHESIZING CIRCUIT
15 REM OUT
K1 4 K2 5 K3 6 K4 7 K5 8 K6 9 KEY INPUT CIRCUIT MULTIKEY INHIBITING CIRCUIT
DATA CODE GENERATING CIRCUIT
14 TEST STROBE SIGNAL GENERATION CIRCUIT 10 ST1 11 ST2 12 ST3 CUSTOM CODE GENERATING CIRCUIT 13 CC1
Figure 1.
PIN CONFIGURATION
VSS XI XO K1 K2 K3 K4 K5
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VDD REM OUT TEST CC1 ST3 ST2 ST1 K6
Figure 2.
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INFRAED REMOCON RECEIVER
S5G9802X01
PIN DISCRIPTION
Pin No. 1,16 2 3 4~9 10~12 13 14 15 Symbol VSS1, VDD XI XO K1 ~ K6 ST1 ~ ST3 CCI TEST REM-OUT Input/Output GND, Power OSC Input OSC output Key Input Strobe Output Custom Code Input Test Terminal Remote Output Description Ground, power supply terminals Terminal for OSC, and used for connecting a 455kHz ceramic resonator Key input terminal for key matrix (with a built-in pull down resistor) Strobe output terminal for key matrix Selected custom code With a built-in pull up resistor Remote signal output, modulation is made by 12 bits 1 cycle and 38kHz carrier wave
ABSOLUTE MAXIMUM RATINGS (Ta = 25xC)
Characteristic Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature REM-OUT Output Current Symbol VDD VIN PD TOPR TSTG IOUT Value 6 VSS -0.3 - VDD+0.3 200 -20 - 75 -55 - +125 -5 Unit V V mW C C mA
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S5G9802X01
INFRAED REMOCON RECEIVER
ELECTRICAL CHARACTERISTICS
(Ta = 25xC , VDD = 3V, unless otherwise specified) Characteristic Operating Voltage Operating Current Static Current K1 - K6 CCI Input K1 ~ K6 CCI TEST ST1 ~ ST3 VIN H L H L H L H L H L Symbol VDD IDD IDS VIH VIL IIH IIL IIH IIL IOH IOL IOH IOL Rf fOSC VIH = 3.0V VIL = 0V VOH = 3.0V VIL = 0V VOH = 2.0V VOL = 3.0V VOH = 2.0V VOL = 2.0V - - Test Conditions All function operation Key on, without LOAD OSC stop, all key off - - Min. 2.0 - - 0.8 Vdd 0 10 -1.0 -1.0 10 -0.5 50 -0.1 1.0 - 400 Typ. - 0.1 - - - 20 - - 20 - - - - 500 455 Max. 50 1.0 10 Vdd 0.2 Vdd 60 1.0 1.0 60 - - - - - 500 Unit V mA A V V A A A A mA A mA mA k kHz
IIN
IIN
Out put
IOUT
REM-OUT IOUT OSC Feedback Resistor Oscillatiion Frequency
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INFRAED REMOCON RECEIVER
S5G9802X01
FUNCTIONAL DESCRIPTION
1. OSCILLATION CIRCUIT * The oscillation circuit is activated when any key is depressed. The ceramic resonator connected to XI, XO is normally operated at 455kHz oscillation frequency.
fosc
XI
2
3 XO
2
3 --- XI, XO Terminals
C1, C2 = 100pF
ceramic resonator C1 C2
Figure 3. 2. KEY INPUT & STROBE OUTPUT * * * All key input pins have a pull down resistor to VSS. 18 keys can be connected by key input K1 - K6 and 6x3 matrix by means of strobe signal ST1 - ST3. Multiple keying is possible for the keys connected to ST1 Line (key No. 1 - 6), and all depressed keys are output (Output becomes continuous pulses). Among the strobe signal lines, priority is set in the order, ST1>ST2>ST3. The keys connected to ST2 and ST3 lines have priority and when input is made through more than 2 keys, and single signal is preferentially output in order of K1 - K6. Finally, the keys connected to ST2 and ST3 lines are for single signals and no second signal is transmitted unless input is made again after the key is released once.
*
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S5G9802X01
INFRAED REMOCON RECEIVER
* Key Matrix
ST1(CT)
ST2 (S1) 1 2 3 4 5 6 ****** ****** ****** ****** ****** ****** 7 8 9 10 A B
ST3C (S2) ****** ****** ****** ****** ****** ****** C D E F G H
K1 K2 K3 K4 K5 K6
********** ********** ********** ********** ********** **********
Key on. 1 - 6: continuous keys Key on. 7 - H: single shot keys
* Key Data Code
key No. 1 2 3 4 5 6 7 8 9 Key Data Code CT S1 S2 D1 D2 D3 D4 D5 D6 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 Output Type Cont Sing Key No. 10 a b c d e f g h Key Data Code CT S1 S2 D1 D2 D3 D4 D5 D6 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 Output Type Sing
* *
Since multiple keying is possible, key no. 1 - 6 are capable of outputting 63 commands through a combination of D1 - D6 data. Key No. 7 - h are the single shot keys for output 12 commands.
* Output Fomat: Transmission command consists of a 3-bit Custom code. 3-bit Continuous/Single shot code and 6-bit Data code.
C1
C2
C3
CT
S1
S2
D1
D2
D3
D4
D5
D6
Custom code
Continuous/ single shot code
Key data code
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INFRAED REMOCON RECEIVER
S5G9802X01
3. CUSTOM CODE (C1, C2, C3) * Custom code bit is made at one terminal with diodes connected through ST1 ~ ST3 strobe terminals
CCI
ST3
ST2
ST1
K6
(C3) (C2) (C1) K1 K2
2
K3
3
K4
4
K5
5
K6
6
CCI = Custom Code Input
1
7
8
9
10
A
B
* Custom code bit consists of 3 bits (C1,C2,C3), and makes 8 custom codes.
C
D
E
F
G
H
Figure 4. * Custom code bit becomes 1 when diodes are connected to the CCI terminal through strobe signal (ST1 - ST3), but if diodes are not connected, custom code bit becomes "0". (In the above diagram, C1. C2 and C3 are "1", 1 and data.) Custom code bit of the S5G9802X01 has 3 bits. However, the S5G9801X01 (16-DIP) which is a receiver, and the S5G9803X01 (24-DIP) are able to use only C2, C3, and C1, C2 custom code bits, respectively. For C1 and C3 custom code bit data not used on the S5G9801X01 and S5G9803X01, you must transmit "1", and diodes must be connected as follows.
*
*
Custom code bit C1 C3 1 0 1 C2 C2 0 1 1 C1,C2 * * * * * * S5G9803X01 (24-DIP) C2,C3 * * * * * * S5G9801X01 (16-DIP) Note: * Custom code bit "0" can not be used * Custom code C1 can't be used on the S5G9801X01 and C3 can't be used on the S5G9803X01
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S5G9802X01
INFRAED REMOCON RECEIVER
4. REMOTE OUTPUT a. Basic waveform (at fosc = 455kHz)
Custom code bit reader
Continuous/single shot code bit reader
Key input reader
T 3T 48T
Figure 5. * * * Basic remote waveform is 12-bit serial data in configuration as shown above. The time of each bit T is decided as shown below by the oscillation frequency fOSC, by means of 01 and 00. T = (1/fOSC) X 192[sec]
b. Distinction of bit "0" and "1"
T
3T
Bit "0"
Bit "1"
3T
T
Figure 6. C. Remote output of Single shot key
67.5T
48T
80T
48T
REM-OUT
Figure 7.
8
~
~
Single shot key on
INFRAED REMOCON RECEIVER
S5G9802X01
*
When any one of the single shot keys is depressed, the above single shot signal is transmitted in 2 cycles, and the remote output ends.
d. Remote output of continuous key
continuous key on
67.5T 48T 80T 48T 208T 48T 80T 48T
REM-OUT
Figure 8. * When any one of the signal shot keys is depressed, the above continuous signal is 2 cycles output, repeatedly output 208T pause and 2 cycles output is 2 pause of 208T.
e. Carrier waveform
Transmitting signal
"1"
" 0"
~ ~
Carrier waveform
TH
Duty =
TL
* *
When single shot or continous signal is transmitting, each code bit is switched by a carrier of duty 1/3 output after the pulse modulated. In 455kHz oscillation the signal is modulated by 1/3 duty 38MHz, and carrier (fC) is decided by oscillation frequency fOSC by means of XI and XO. fC = fOSC/12[Hz] fC = 38kHz at fOSC = 455kHz
~ ~
TL TL + TH
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S5G9802X01
INFRAED REMOCON RECEIVER
APPLICATION CIRCUIT
switch KSA539 + 47iF VDD KSC815 TLN105
O
10KO
16
15
14
12
11
10
KS9802 S5G9802X01
2 3 4 5 6 7 8
100pF 100pF
K1 ~K6
1 2 3 5 6
KEY MATRIX ST1~ST3
C
8
9
10
11
12
D
E
F
G
H
Figure 9.
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