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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
INTRODUCTION
The S5G9801X01 and S5G9803X01 are CMOS integrated circuits for the infrared ray remote receiver, used with the S5G9802, which can be applied to TV, VCR, VDP, CDP and AV controller. The S5G9801X01 is a 16-DIP type and is able to control 10 functions. The S5G9803X01 is a 24-DIP type and is able to control 18 functions. 16-DIP-300A
FEATURES
* * * * Output for continuous pulse, toggle pulse and single pulse are provided (Toggle pulse is available only for S5G9803X01) A single terminal type oscillator by means of RC is provided Containing custom code detection circuit for code check with the transmitter (To prevent interferences with other models)
24-DIP-400
Able to output in parallel method multiple keying signals sent from transmitter. The S5G9801X01 can output up to 5 functions, and the S5G9803X01 can output up to 6 functions in parallel method.
ORDERING INFORMATION
Device S5G9801X01-D0B0 S5G9803X01-D0B0
Package 16-DIP-300A 24-DIP-400
Operating Temperature - 20C - +75C
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
BLOCK DIAGRAM
VDD GND
16 1
OSC 15
OSC
DIVIDER
CLOCK GENERATOR
REMIN 2
DATA INPUT
DATABIT COUNTER
DATA REGISTER
CODE1 14 CODE2 13
SYSTEM CODEINPUT
COMPARATOR
OUTPUT LATCH & DRIVER
CP1 CP2 CP3 CP4 CP5 CP6 SP1 SP2 SP3 SP4 SP5 SP6 SP7 SP8 SP9 SP10 TP1 TP2
Figure 1.
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S5G9801X01/S5G9803X01
PIN CONFIGURATION
VSS VSS REMIN CP1 CP2 CP3 CP4 CP5 SP5 1 2 3 4 5 6 7 8 REMIN 16 VDD CP1 15 OSC CP2 14 CODE2 CP3 13 CODE3 CP4 12 SP1 TP5 TP6 10 9 SP3 TP2 SP4 11 SP2
1 2 3 4 5 6
24 VDD 23 OSC 22 CODE1 21 CODE2 20 SP1
S5G9801X01
S5G9803X01
7 8 9
19 SP2 18 SP3 17 SP4 16 SP5 15 SP6 14 SP7 13 SP8
TP1 10 SP10 11
SP9 12
Figure 2.
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
PIN DESCRIPTION
Pin No S5G9801 S5G9803 1 2 3-7 - - 8 ~ 12 - 13, 14 1 2 - 3-8 9 - 10 - 11 - 20 21, 22 GND REMIN CP1 - SP5 CP1 - CP6 TP1, TP2 SP1 - SP5 SP1 - SP10 CODE Symbol Input Output Ground Receiving Signal Input Continuous Signal output Toggle Signal Output Single Signal Output Description - Instruction signal input with the carrier signal eliminated. As long as receiving is input, this output is held at "H" level. After releasing a key, output is held at "H" level for about 160 msec. When receiving signal is input, output is toggled. When receiving signal is input, output is held at "H" level only for about 107 msec. A code set at this terminal is compared with transmitter code and if they agree with each other, input is accepted (built-in pull-up resistor). A capacitor and a resistor are connected in parallel method between this terminal and VSS. -
Code Input
15 16
33 24
OSC VDD
Timing Oscillation Power Supply
ABSOLUTE MAXIMUM RATINGS (TA = 25xC)
Characteristic Supply Voltage Input/Output Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VDD VIN VOUT PD TOPR TSTG Value 0-6 VSS -0.3 - VDD + 0.3 200 -20 - 75 -55 - 125 Unit V V mW C C
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S5G9801X01/S5G9803X01
ELECTRICAL CHARACTERISTICS
(Ta = 25 xC, VDD = 5 V, unless otherwise specified) Characteristic Operating Voltage Operating Current Frequency Deviation Symbol VDD IDD fOSC VFOXC TFOSC Output Current Input Current "H" Level "L" Level "H" Level IOH IOL IIH RUP VIH VIL VH2S SFOSC Test Conditions Ta = -25C ~ 75C Output Without Load Ta = -25C - 75C VDD = 4.5V - 5.5V Ta = -25C VDD = 4.5V - 5.5V Ta = -30C - 75C All Output, VOH = 4V All Output, VOL = 1V Code Terminal, VIH = 5.0V REMAIN Terminal REMAIN Terminal REMAIN Terminal - - Min. 4.5 - 27 -5 -5 - 1.0 -1.0 10 3.5 - - - Typ. - - 38 - - -2.0 2.5 - 20 - - 1.0 38 Max. 5.5 1.0 57 5 5 -1.0 - 1.0 40 - 1.5 - - Unit V mA kHz % % mA mA uA k V V V kHz
Frequency Stability
Pull-up Resistor Input Circuit Threshold Voltage Hysteresis Width Standard osc Frequency
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
OPERATING PRINCIPLES
1. POR (Power On Reset) CIRCUIT To initialize the internal state at time of power ON, it is necessary to perform the initialization. The initialization is carried out when a capacitor is connected to the code bit terminal.
RUP
RUP
CODE1
CODE2
Initialize RUP = 20k C = 0.001F - 0.022F
Figure 3. In the case of S5G9803, connect a capacitor to CODE2 and CODE3.
2. OSCILLATION CIRCUIT The RC oscillation circuit is normally operated at 38kHz oscillation frequency. (The RC is connected between OSC terminal and VSS.)
FOSC CSC SCHMITT
R
C
R = 39k 5% C = 1000pF 5%
Figure 4. Oscillation frequency is about 38kHz 5kHz at R = 38kW and C = 1000pF.
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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
3. RECEIVING SIGNAL INPUT CIRCUIT Signal received by the light receiving element is sent through the Pre-Amp to the detector, when a 38 kHz carrier wave is eliminated and the signal enters a REMIN PIN of the receiving signal input circuit. The receiving signal input circuit (REMIN) has a built-in Schmitt trigger for shaping receiving signal waveforms to eliminate rounding.
AMP
DET
REMIN
PH302B
Figure 5. 4. RECEIVING SIGNAL CHECK The receiving signal check is to check the 2-cycle transmitting signal sent from the transmitter to check whether it is a normal signal or not.
12 Bits
12 Bits
First Data
Second Data
Figure 6. The first data is stored in the 12-bit data register. Then, when the second data is entered, the previous data is pushed out from the data register one by one. The pushed out data and incoming data are checked to see if they are same. If any errors are caused during the 12-bit receiving data check, the system is reset at that time. And when all receiving data are same, output is raised from L level to H level. The status of receiving data, register clock and check pulse are shown below. Register clock is provided in the data center by taking frequency margins of the transmitter and the receiver into consideration.
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
READER DATA `0'
READER DATA `1'
Receiving Data
0.42ms
0.84ms
Register Clock (REGCK)
Check Pulse (CHP)
Figure 7.
5. CODE BIT COMPARISON In order to prevent interference with other machines and apparatuses, C1, C2 and C3 code bits are provided for checking whether or not the transmitter codes agree to the receiver codes. Only when both codes agree, the internal latch pulse is generated to latch receiving data, and output is raised from "L" level to "H" level. If both codes do not agree, latch pulse is not generated and output remains at "L" level. Code bits used differ depending on receiver as shown below: CODE BIT C1 C3 0 1 1 C2 C2 1 0 1 S5G9801X01C2, C3 is used. S5G9803X01C1, C2 is used. * CODE BIT "0", "0" cannot be used.
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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
6. EXPLANATION OF OUTPUT PULSE SP, CP, TP 1) SP1 - SP10 (Single Pulse) When a single key is depressed, after checking the 12-bit receiving data, if the data agree, a single pulse is output. The output is raised from "L" level to "H" level and returned again to "L" level after about 107 msec.
KEY ON Single Signal Latch Pulse Single Output About 107 msec 12Bits 12Bits
Figure 8. 2) CP1 - CP6 (Continuous Pulse) Continuous pulse is output by the first latch pulse after key ON. Output is kept at "H" level as a long as a continuous signal is input. When the key is released and continuous signal is stopped about 160 msec later, output is reversed to "L" level by the last latch pulse. Further, CP1 - CP6 are able to output simultaneously in parallel method, maximum sextet outputs at "H" level by continuous signals sent from the transmitter. These outputs are optimum as outputs of REC-PLAY, REC-PAUSE and CUE/REVIEW of a tape deck.
KEY ON Continuous Signal Latch Pulse Continuous Output 160msc 12 12
Figure 9. 3) TP1, TP2 (Toggle Pulse) When toggle signal is received, toggle pulse output is reversed. This toggle pulse is used for power ON, OFF, MUTE, etc.
KEY ON Toggle signal Latch Pulse Toggle Output 12 12
Figure 10.
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
7. CODE TABLE C1 - C3 code bits are available in addition to the data bits shown below for optional code selection. S5G9803X01 is able to use all keys, but S5G9801X01 can use KEY1 - 5 and KEY 7 - A only for 10 commands. Key No. 1 2 3 4 5 6 7 8 9 Data Bit 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 CONT, CP1 CONT, CP2 CONT, CP3 CONT, CP4 CONT, CP5 CONT, CP6 SING, SP1 SING, SP2 SING, SP3 Key Data Bit
No. CT S1 S2 D1 D2 D3 D4 D5 D6 10 A B C D E F G H 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 SING, SP4 0 SING, SP5 1 SING, SP6 0 SING, SP7 0 SING, SP8 0 SING, SP9 0 SING, SP10 0 TOGG, TP1 1 TOGG, TP2
CONT : Continuous,
NOTE:
SING : Single,
TOGG : Toggle
S5G9802X01 has 18 function keys, and total 75 commands can be transmitted: 63 commands by the continuous keys of multiple keying is possible and 12 commands by the single-shot keys.
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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
EXAMPLE OF APPLICATION CIRCUIT
1. COMBINATION OF S5G9802X01/S5G9801X01 CODE BITS
(EXAMPLE 1) In the Case when CODE C2 = 0 and C3 = 1 (TABLE 1) S5G9802X01 S5G9801X0 1 C2 0 1 1 C3 1 0 1
VDD
CCI
ST3 ST2 ST1 K6 (C3) (C2) (C1) S5G9802 KS9802
C1 1 1 1
C2 0 1 1
C3 1 0 1
(CODE C1 = 1, C2 = 0, C3 =1)
(CODE C1 =1, C2 =1)
VDD OSC CODE1 CODE1 SP1
Figure 11. The combination of code bits of S5G9802X01 and S5G9801X01 is shown in Table 1. To make the code bit to 1 on S5G9802X01, connect diodes to the CCI terminal from ST1 - ST3 terminals. To set Code Bit at 0, open the circuit. S5G9801X01 has CODE2 and CODE3 code terminals. Code bit of C1 has been pulled up in IC and C1 is always kept at 1 status. Therefore, on transmitter S5G9802X01, it is necessary to keep C1 code bit at 1.
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
2. COMBINATION OF S5G9802/S5G9803 CODE BITS
(TABLE 2) S5G9802X01 C1 0 1 1 C2 1 0 1 C3 1 1 1 S5G9803X01 C2 0 1 1 C3 1 0 1
(EXAMPLE 2) In case CODE C1 = 1 and C2 = 1
CCI
ST3 ST2 ST1 K6 (C3) (C2) (C1)
S5G9802X01 KS9802
(CODE C1 = 1, C2 = 1, C3 =1)
VDD
VDD OSC CODE1 CODE1
(CODE C1 =1, C2 =1)
Figure 12. The combination of code bits of S5G9802X01 and S5G9803X01 is shown in Table 2. S5G9803X01 has CODE1 and CODE2 code terminals. Code bit of C3 has been pulled up in IC and C3 is always kept at 1 status. Therefore, on transmitter S5G9802X01 it is necessary to keep code bit C3 at 1. To keep code bit C3 at 1, connect a diode to the Cci terminal from ST3 terminal. 3. If input voltage above VDD +0.3 V may be applied to the REMIN Input Terminal (2 PIN), connect about ten resistors in series to the REMIN Input Terminal. (This is to prevent latch-up).
RECEIVING SIGNAL 10k O
REMIN (2 PIN)
Figure 13.
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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
APPLICATION CIRCUITS
1. RECEIVING PART
S1A2184 1 2 3 4.7 PH302B + + 1F 3.3F 4 5 6 7 8 55K 330pF 200K 1K 22K 5V REMOUT
KSC945
Figure 14. 2. S5G9801 CIRCUIT
CR VDD 10iF +
+
CONTROL SIGNAL
16
1000pF 1000pF 15 14 13 12 11 10 SP3 9 SP4
VDD OSC VSS REMIN 1 2
CODE2 CODE3
SP1 SP2
KS9801 S5G9801X01 CP1 3 10kO REMIN input CONTROL SIGNAL CP2 4 CP3 5 CP4 6 CP5 CP5 7 8
Figure 15.
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
3. S5G9803 CIRCUIT
CR VDD 10iF +
+
CONTROL SIGNAL
24
1000pF 1000pF 23 22 21 20 19 18 SP3 17 SP4 16 SP5 15 SP6 14 SP7 13 SP8
VDD OSC VSS REMIN 1 2
CODE3 CODE1
SP1 SP2
S5G9801X01 KS9801
CP1 3 10kO REMIN input CONTROL SIGNAL CP2 4 CP3 5 CP4 6 CP5 CP5 7 8 CP5 9 CP5 10 CP5 11 CP5 12
Figure 16.
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INFRAED REMOCON RECEIVER
S5G9801X01/S5G9803X01
VARIANCE OF OSCILLATION FREQUENCY BY R AND C
1) Variance of Oscillation Frequency by R
55 50 45
VDD = 5 V C = 1000 pF
FREQ. (kHz)
40 35 30 25 30 34 38 42 46 50 54
R (k)
2) Variance of Oscillation Frequency by C
55 50 45
FREQ. (kHz)
VDD = 5 V R = 39 k
40 35 30 25 30 34 38 42 46 50 54
C (pF)
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S5G9801X01/S5G9803X01
INFRAED REMOCON RECEIVER
NOTES
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