Silan Semiconductors SC50560 INFRARED REMOTE CONTROL TRANSMITTER DESCRIPTION The SOP-20 SC50560 is a remote control transmitter utilizing CMOS technology housed in a 20-pin DIP or SO package. A 4x8 key matrix and extension bit inputs allow the transmission of up to 256 instructions. The transmission code consists of 16 bits code (8 bits custom code and 8 bits data code) and a leader code. Pin assignments and application circuit of SC50560 are optimized DIP-20 for easy PCB layout and cost saving advantage for remote control applications. FEATURES ORDERING INFORMATION * CMOS technology SC50560 SC50560S * Low power consumption * Least external components DIP-20 Package SOP-20 Package * LED power dissipation is less during the transmission of instructions APPLICATIONS PIN CONFIGURATION * Audio Equipment * Television * Video Cassette Recorder * Air Condition Vss 1 20 VDD TEST 2 19 DOUT SEL 3 18 KO0 OSCI 4 17 KO1 OSCO 5 CS 6 15 KO3 KIO0 7 14 KO4 KIO1 8 13 KO5 KIO2 9 12 KO6 KIO3 10 11 KO7 SC50560 16 KO2 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 1 2002-03-21 Silan Semiconductors SC50560 BLOCK DIAGRAM KIO0 VDD VSS OSCI OSCO 20 1 4 5 Oscillation Circuit 7 KIO1 8 KIO2 9 KIO3 10 CS 6 Scan Key Input Timing Generator Data Encoder 2 TEST Test Circuit Code Transfer Output Controller 19 DOUT 3 SEL Scan Signal Generating Circuit 18 17 16 15 14 13 12 11 S1 S2 S3 S4 S5 S6 S7 S8 ABSOLUTE MAXIMUM RATINGS (Tamb=25°C) Characteristic Symbol Value Unit V Supply Voltage VCC -0.3 ~ 5.5 Input Voltage VIN Vss-0.3V ~ VDD+0.3V V Output Voltage VOUT Vss ≤ Vo ≤ VDD V Operating Temperature Topr -20 ~ 70 °C Storage Temperature Tstg -40 ~ +125 °C ELECTRICAL CHARACTERISTICS (Tamb=25°C,VDD =3.0V,Vss=0,Unless otherwise specified) Parameter Symbol Test Conditions Supply Voltage VDD Fosc =455KHz Operating Current IOP Fosc =455KHz Stand-by Current ISB High level Output Current (Dout) IOH Low Level Output Current (Dout, KO0~KO7) High Level Input Voltage (CS) (KIO0~KIO3) Low Level Input Voltage (CS) (KIO0~KIO3) Input Pull-High Resistance (KIO0~KIO3) IOL Min 2.0 OSCO =VDD KIO0~KIO3= VDD TEST = Vss SEL = Vss VOH=2V VOL=0.9V I KO0~KO7 Typ Max Unit 3.0 4.0 V 0.12 0.3 mA 0.1 1 µA -1.0 -13 0.5 1.2 4.5 5.3 mA mA VIH VDD=3.0V 0.7 VDD VDD V VIL VDD=3.0V 0 0.3VDD V RIN VDD=3.0V 55 85 kΩ 70 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2 2002-03-21 Silan Semiconductors SC50560 PIN DESCRIPTION Pin No. Pin Name Input/output Description 1 VSS -- 2 TEST I Test Pin. This pin is normally connected to VSS. 3 SEL I Select Pin for SC50560-001/003. Oscillation Input Pin Negative Power Supply 4 OSCI I 5 OSCO O Oscillation Output Pin 6 CS I Code Select Pin 7~10 KIO0~KIO3 I/O Input/Output Pins 18~11 KO0~KO7 O Scan Output Pins 19 Dout O Output Pin 20 VDD -- Positive Power Supply FUNCTIONAL DESCRIPTION SC50560 is capable of transmitting up to 256 different instructions and 8 bits custom codes using a 16-bit PCM Code with a leader code. Furthermore, oscillation is normally stopped when there is no operating, thereby, lower power dissipation. 1. TRANSMISSION CODE SC50560 transmission code consists of a leader code, 8 bits custom code (C0 to C7) followed by a sync. bit and 8 bits data code (D0 to D7) followed another sync. bit. The custom and the data codes are separated by a separator. Please refer to the diagram below: C1 C2 C3 C4 C5 C6 C7 SYNC Leader Pulse 8 Bits Custom Code D0 D1 D2 D3 D4 D5 D6 D7 SYNC Seperator 8 Bits Data Code Sync. Bit Sync. Bit Figure 1. SC50560 Transmission Code Format One transmission Code Word consists of a 19-bit pulse (that is the leader pulse plus the 16 bits code) and the separator. It is transferred in a 63.4ms for as long as the key is depressed. Please refer to the diagram below: SEPARATOR 8BITS CUSTOM CODE LEADER CODE 8.4ms C0 C1 C2 C3 C4 C5 C6 C7 SYNC D0 D1 8BITS DATA CODE D2 D3 D4 D5 D6 D7 SYNC 4.2ms 4.2ms ONE CODE WORD 63.4ms Figure 2. SC50560 Detailed Code Word Format HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 3 2002-03-21 Silan Semiconductors SC50560 LEADER CODE The leader code is located at the beginning of the transmission code and is made up of 8.4ms HIGH & 4.2ms LOW pulse and is modulated in 38KHz providing easy identification of the reception code head bit at the receiver. CUSTOM CODE Custom Code may be selected by connection CS Input with Scan Output (KO0 to KO4). An example of a custom code selection is shown in the diagram below. CS KO0 KO1 KO2 KO3 KO4 6 18 17 16 15 14 C0 1 C1 0 C2 1 C3 0 C4 1 Custom Code C5 0 C6 0 C7 0 Figure 3. custom Code Selection Example DATA CODE D0 to D7 of the transmission code are the data code bits. When CS Input and the Scan Output (KO5 to KO7) are connected, data bits—D5 to D7 becomes the system extended code bits. An example of the Extended code Bits Selection is given in the diagram below: CS KO5 KO6 KO7 6 18 17 16 Data Code D5 D6 SW = OFF 1 0 D7 0 SW = ON 1 0 1 Figure 4. Extended Code Selection 2. SEPARATOR The separator demarcates the custom code and the data code. It consists of a 4.2ms LOW pulse interval and can be determined at the receiver so theat any interference with other remote control system may be avoided. Please refer to Figure 2. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 4 2002-03-21 Silan Semiconductors SC50560 3. CARRIER The carrier of the transmission signal is 38KHz and one pulse width is 0.52ms. Therefor, with the exception of the leader code, there are twenty 38KHz clock in one pulse width. Please refer to the diagram below. 0.52ms 8.7µs 26.3µs Figure 5. Transmission Signal Carrier Diagram 4. KEY INPUT By connecting the input pins – KI0 to KI3 and scan output pins –KO0 to KO7 (also known as the Standard Keys), a 4x8 key matrix may be formed. Likewise, a maximum of 256 instructions may be provided by connecting the input CS with the scan output –KO0 to KO7 (also known as the Extended Keys). When two or more standard keys are pressed, the transmission output Dout is kept at LOW and no transmission code is outputted. Please refer to the tables below. Data D0 D1 KI0 0 0 KI1 1 0 KI2 0 1 KI3 1 1 D2 D3 Key Input Data Scan Output Data D4 CS Input D5 D6 D7 KO0 0 0 0 KO5 1 -- -- KO1 1 0 0 KO6 -- 1 -- KO2 0 1 0 KO7 -- -- 1 KO3 1 1 0 KO4 0 0 1 KO5 1 0 1 KO6 0 1 1 KO7 1 1 1 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 5 2002-03-21 Silan Semiconductors SC50560 5. Oscillation Circuit The oscillation circuit may be constructed by connected a SC50560 ceramic resonator between the OSCI and OSCO. Please OSCI OSCO refer to the diagram right. When the references signal is set 4 5 to 455KHz the carrier can be set at 38KHz. When no key input is pressed, the oscillation circuit is normally stopped, thereby, lower power dissipation. Figure 6. Oscillation Circuit 6. CODE FORMAT MODES SC50560 code format comes in three modes: 001, 002 and 003. Please refer to the diagram below: SC50560 Version Minimum Number of Words Description Transmitted Mode A Code Format: SC50560-001 Custom Code Bit 5--C5=0, 1 word SEL is connected to VDD SC50560-002 Mode A & B Code Formats 3 words Mode A Code Format: SC50560-003 ----- Custom Code Bit 5--C5=1, When SEL is connected to Vss Both SC50560-001 and SC50560-002 make use of the same operation when the input from terminal CS and the scan output (KO0 to KO4) are connected to make the custom code selection with the exception of the number of word transmitted. Please refer to the table above: MODE A The diagram below gives us the transmission code format for Mode A. One Code Word consists of the Leader Code, 8 bits Custom Code followed by a sync. bit, Separator and 8 bits Data Code followed by another sync. bit. Please refer to the diagram below. C0 C1 C2 C3 C4 C5 C6 C7 SYNC Leader Pulse 8 Bits Custom Code D0 D1 D2 D3 D4 D5 D6 D7 SYNC Seperator Sync. Bit 8 Bits Data Code Sync. Bit Figure 7. Mode A Code Format Each Code Bit may either be “0” or “1”. Please refer to the diagram below. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 6 2002-03-21 Silan Semiconductors SC50560 0.52ms Bit "0" 1.05ms Bit "1" 2.1ms Figure 8. Mode A Bit “0” & “1” Waveform MODE B The diagram below gives us the transmission code format for Mode B. Under this mode, the custom codes are not selected, therefore the transmission code only consists of the 6 bits data code followed by a sync. bit. Please refer to the diagram below: D0 D1 D2 D3 D4 D5 SYNC Data Code Figure 9. Mode B Code Format A transmission Code Bit may either be “0” or “1”. Please refer to the diagram below: 0.52ms Bit "0" 2.1ms Bit "1" 4.2ms Figure 10. Mode B Bit “0” & “1” Waveform Diagram Under Mode B, a maximum of 32 different instructions may be provided simply by connecting the inputs KI0 to KI3 with the Scan Outputs KO0 to KO7, thereby constructing a 4x8 key matrix. When two or more keys are pressed at the same time, the transmission output Dout is set to and the no transmission occurs. Please refer to the table below. KO0 KO1 KO2 KO3 KO4 KO5 KO6 KO7 KI0 00 04 08 0C 10* 14* 18* 1C* KI1 01 05 09* 0D* 11* 15* 19* 1D* KI2 02 06 0A* 0E* 12* 16* 1A* 1E* KI3 03 07 0B* 0F* 13* 17* 1B* 1F* NOTE: * = Output of a five-word transmission code. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 7 2002-03-21 Silan Semiconductors SC50560 APPLICATION CIRCUIT 1. For 01 and 03 Versions Settings for Data Bits--D5, D6, D7 Custom Code Setting IR LED 270 1 VDD 47 3V ¡ ¡ F 20 19 18 VDD Dout KO0 KO1 KO2 17 16 14 13 12 11 KO3 KO4 15 KO5 KO6 KO7 KI0 KI1 KI2 KI3 7 8 9 10 SC50560-001 Vss TEST SEL OSCI OSCO CS 1 2 3 4 5 455 KHz 100pF 100pF VSS VDD 6 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 8 2002-03-21 Silan Semiconductors SC50560 2. Extended Codes Custom Code Setting Extended Keys Standard Keys IR LED 270 1 VDD 47 3V ¡ ¡ F 20 19 18 16 15 14 13 12 11 VDD Dout KO0 KO1 KO2 17 KO3 KO4 KO5 KO6 KO7 KI0 KI1 KI2 KI3 7 8 9 10 SC50560-001 Vss TEST SEL OSCI OSCO CS 2 3 4 5 455 KHz 100pF VSS VDD 6 100pF 1 Standard Code KO0 Extended Code KI0 KI1 KI2 KI3 00 01 02 03 KI0 KI1 KI2 KI3 KO1 04 05 06 07 KO2 08 09 0A 0F KO3 0C 0D 0E 0B KO4 10 11 12 13 KO5 14 15 16 17 34 35 36 37 KO6 18 19 1A 1B 58 60 5A 5B KO7 1C 1D 1E 1F 9C 8D 9E 9F Not Used HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 9 2002-03-21 Silan Semiconductors SC50560 3. Double Key Operation Custom Code Setting IR LED 270 1 VDD 47 3V Double Key ¡ ¡ F 20 19 18 16 15 14 13 12 11 VDD Dout KO0 KO1 KO2 17 KO3 KO4 KO5 KO6 KO7 KI0 KI1 KI2 KI3 7 8 9 10 SC50560-001 Vss TEST SEL OSCI OSCO CS 2 3 4 5 455 KHz 100pF VSS VDD 6 100pF 1 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 10 2002-03-21 Silan Semiconductors SC50560 4. No Leader Code and Custom Code D2 Setting IR LED 270 1 VDD 47 3V ¡ ¡ F 20 19 18 15 14 13 12 11 VDD Dout KO0 KO1 KO2 KO3 17 16 KO4 KO5 KO6 KO7 KI0 KI1 KI2 KI3 7 8 9 10 SC50560-002 Vss TEST SEL OSCI OSCO CS 1 2 3 4 5 6 100pF 100pF 455 KHz HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 11 2002-03-21 Silan Semiconductors SC50560 CHIP TOPOGRAPHY 17 16 15 14 18 13 19 12 20 11 1 10 2 9 3 8 4 5 6 7 Size: 1.40 x 1.21 mm2 PAD COORDINATES (Unit: µm) No. Symbol X Y No. Symbol X Y 1 P1 2 P2 -579.10 -35.50 11 P11 579.00 142.30 -579.10 -184.50 12 P12 579.00 3 291.30 P3 -579.10 -333.50 13 P13 579.00 440.30 4 P4 -579.10 -482.50 14 P14 270.80 482.50 5 P5 -141.60 -482.50 15 P15 121.80 482.50 6 P6 8.3 -482.50 16 P16 -27.20 482.50 7 P7 421.60 -482.50 17 P17 -176.20 482.50 8 P8 579.00 -304.70 18 P18 -579.10 411.50 9 P9 579.10 -155.70 10 P10 579.10 -6.70 Note: The original point of the coordinate is the die center. 19 P19 -579.10 262.50 20 P20 -579.10 113.50 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 12 2002-03-21 Silan Semiconductors SC50560 PCB WIRE LAYOUT SCHEMATIC: Transmitting tube output ground line The transmitting tube ground line and IC ground line should layout separated or overstriking ground line. The above IC only use to hint, not to specified. Note: * In wire layout, the power filter capacitor should near to IC. * In wire layout, should avoid power line and ground line too long. * Recommended infrared transmit unit and IC ground line should layout separated, or overstriking lines. resistor at least. * The emitter of triode connect 1 * Recommended triode use 9014. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 13 2002-03-21 Silan Semiconductors SC50560 PACKAGE OUTLINE DIP-20-300-2.54 UNIT: mm 0.25 0.05 B 7.62(300) 6.60 0.25 2.54 B B 1.27 15 degree 0.51MIN 3.00MIN 4.36MAX 26.4 0.3 B 0.46 0.08 1.778MAX 9.525(375) 0.4 0.3 7.6 UNIT: mm 10.2 SOP-20-375-1.27 0.25 0.05 B B B 1.27 B0.25 0.4 12.7 B0.1 3.1MAX 11.43 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 14 2002-03-21 Silan Semiconductors SC50560 Attach Revision History Data REV 2000.12.31 2.0 2002.01.04 2.1 2002.02.28 2002.03.21 2.2 2.3 Description Page Change name of company in page footer Delete “or floating “ in “6.code format modes” 6 Modify the “Pin configuration “ 1 Modify the “Application circuit” 8-11 Add the “PCB wire layout schematic” 13 Modify the “Package outline” 14 Modify the “figure3” and “figure 4” 4 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 15 2002-03-21