SC50560-003

Silan Semiconductors INFRARED REMOTE CONTROL TRANSMITTER DESCRIPTION The SC50560 is a remote control transmitter utilizing CMOS SC50560 SOP-20 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 for easy PCB layout and cost saving advantage for remote control applications. DIP-20 FEATURES * CMOS technology * Low power consumption * Least external components * LED power dissipation is less during the transmission of instructions ORDERING INFORMATION SC50560 SC50560S DIP-20 Package SOP-20 Package APPLICATIONS * Audio Equipment * Television * Video Cassette Recorder * Air Condition PIN CONFIGURATION Vss TEST SEL OSCI OSCO CS KIO0 KIO1 KIO2 1 2 3 4 5 6 7 8 9 SC50560 20 VDD 19 DOUT 18 KO0 17 KO1 16 KO2 15 KO3 14 KO4 13 KO5 12 KO6 11 KO7 KIO3 10 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 1 Silan Semiconductors BLOCK DIAGRAM KIO0 KIO1 KIO2 KIO3 CS 7 8 9 10 SC50560 VDD 20 VSS 1 OSCI 4 OSCO 5 Scan Key Input Oscillation Circuit Timing Generator Test Circuit 2 TEST 19 DOUT Data Encoder 6 Code Transfer Output Controller 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 Supply Voltage Input Voltage Output Voltage Operating Temperature Storage Temperature Symbol VCC VIN VOUT Topr Tstg Value -0.3 ~ 5.5 Vss-0.3V ~ VDD+0.3V Vss ≤ Vo ≤ VDD -20 ~ 70 -40 ~ +125 Unit V V V °C °C ELECTRICAL CHARACTERISTICS (Tamb=25°C, Parameter Supply Voltage Operating Current Stand-by Current High level Output Current (Dout) 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) VDD =3.0V,Vss=0,Unless otherwise specified) Symbol VDD IOP ISB IOH IOL I KO0~KO7 VIH Test Conditions Fosc =455KHz Fosc =455KHz OSCO =VDD KIO0~KIO3= VDD TEST = Vss SEL = Vss VOH=2V VOL=0.9V Min 2.0 Typ 3.0 0.12 0.1 Max 4.0 0.3 1 Unit V mA µA mA mA -1.0 0.5 4.5 -13 1.2 5.3 VDD VDD=3.0V 0.7 VDD V VIL VDD=3.0V 0 0.3VDD V kΩ RIN VDD=3.0V 55 70 85 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 2 Silan Semiconductors PIN DESCRIPTION Pin No. 1 2 3 4 5 6 7~10 18~11 19 20 SC50560 Description Negative Power Supply Test Pin. This pin is normally connected to VSS. Select Pin for SC50560-001/003. Oscillation Input Pin Oscillation Output Pin Code Select Pin Input/Output Pins Scan Output Pins Output Pin Positive Power Supply Pin Name VSS TEST SEL OSCI OSCO CS KIO0~KIO3 KO0~KO7 Dout VDD Input/output -I I I O I I/O O O -- 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 Sync. Bit Seperator D0 D1 D2 D3 D4 D5 D6 D7 SYNC 8 Bits Data Code 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: 8BITS CUSTOM CODE LEADER CODE C0 C1 C2 C3 C4 C5 C6 C7 SEPARATOR SYNC D0 D1 8BITS DATA CODE D2 D3 D4 D5 D6 D7 SYNC 8.4ms 4.2ms ONE CODE WORD 63.4ms 4.2ms Figure 2. SC50560 Detailed Code Word Format HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 3 Silan Semiconductors LEADER CODE SC50560 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 Custom Code C0 1 C1 0 C2 1 C3 0 C4 1 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 SW = OFF SW = ON D5 1 1 D6 0 0 D7 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 2002-03-21 4 Silan Semiconductors 3. CARRIER SC50560 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 Key Input KI0 KI1 KI2 KI3 D0 0 1 0 1 D1 0 0 1 1 Data Scan Output KO0 KO1 KO2 KO3 KO4 KO5 KO6 KO7 D2 0 1 0 1 0 1 0 1 D3 0 0 1 1 0 0 1 1 D4 0 0 0 0 1 1 1 1 Data CS Input KO5 KO6 KO7 D5 1 --- D6 -1 -- D7 --1 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 5 Silan Semiconductors 5. Oscillation Circuit The oscillation circuit may be constructed by connected a ceramic resonator between the OSCI and OSCO. Please refer to the diagram right. When the references signal is set 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. SC50560 SC50560 OSCI OSCO 4 5 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 Description Mode A Code Format: Minimum Number of Words Transmitted 1 word SC50560-001 Custom Code Bit 5--C5=0, SEL is connected to VDD SC50560-002 Mode A & B Code Formats Mode A Code Format: 3 words ----- 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 Sync. Bit Seperator D0 D1 D2 D3 D4 D5 D6 D7 SYNC 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 2002-03-21 6 Silan Semiconductors 0.52ms SC50560 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 KI0 KI1 KI2 KI3 00 01 02 03 KO1 04 05 06 07 KO2 08 09* 0A* 0B* KO3 0C 0D* 0E* 0F* KO4 10* 11* 12* 13* KO5 14* 15* 16* 17* KO6 18* 19* 1A* 1B* KO7 1C* 1D* 1E* 1F* NOTE: * = Output of a five-word transmission code. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 7 Silan Semiconductors APPLICATION CIRCUIT 1. For 01 and 03 Versions SC50560 Custom Code Setting Settings for Data Bits--D5, D6, D7 IR LED VDD 3V 100pF VDD HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 8 100pF ­ 47 F ¡ 20 VDD 1 Vss TEST SEL OSCI OSCO CS 1 ¡ 19 Dout 270 18 17 16 15 14 13 KO5 12 KO6 11 KO7 KO0 KO1 KO2 KO3 KO4 SC50560-001 KI0 KI1 KI2 KI3 2 3 VSS 4 5 455 KHz 6 7 8 9 10 Silan Semiconductors 2. Extended Codes Custom Code Setting Extended Keys SC50560 Standard Keys IR LED VDD 3V 100pF VDD Standard Code KI0 KO0 KO1 KO2 KO3 KO4 KO5 KO6 KO7 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 0F 0B 13 17 1B 1F 34 58 9C KI0 100pF HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 ­ 47 F VDD ¡ 20 19 Dout 1 Vss TEST SEL OSCI OSCO CS 1 ¡ 18 17 16 15 KO3 270 14 KO4 13 KO5 12 KO6 11 KO7 KO0 KO1 KO2 SC50560-001 KI0 KI1 KI2 KI3 2 3 VSS 4 5 455 KHz 6 7 8 9 10 Extended Code KI1 KI2 KI3 Not Used 35 60 8D 36 5A 9E 37 5B 9F 9 Silan Semiconductors 3. Double Key Operation Custom Code Setting Double Key SC50560 IR LED 270 1 VDD 47 3V F 20 VDD Vss TEST SEL OSCI OSCO CS 1 100pF VDD HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 10 100pF ¡ 19 Dout ¡ 18 17 16 15 KO3 ­ 14 KO4 13 KO5 12 KO6 11 KO7 KO0 KO1 KO2 SC50560-001 KI0 KI1 KI2 KI3 2 3 VSS 4 5 455 KHz 6 7 8 9 10 Silan Semiconductors 4. No Leader Code and Custom Code SC50560 D2 Setting IR LED VDD 3V 100pF HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 11 100pF ­ 47 F VDD ¡ 20 19 Dout 1 Vss TEST SEL OSCI OSCO CS 1 ¡ 18 17 16 15 14 KO4 270 13 KO5 12 KO6 11 KO7 KO0 KO1 KO2 KO3 SC50560-002 KI0 KI1 KI2 KI3 2 3 4 5 455 KHz 6 7 8 9 10 Silan Semiconductors CHIP TOPOGRAPHY SC50560 17 16 15 14 13 12 11 10 9 8 5 6 7 18 19 20 1 2 3 4 Size: 1.40 x 1.21 mm2 PAD COORDINATES (Unit: µm) No. 1 2 3 4 5 6 7 8 9 Symbol P1 P2 P3 P4 P5 P6 P7 P8 P9 X -579.10 -579.10 -579.10 -579.10 -141.60 8.3 421.60 579.00 579.10 Y -35.50 -184.50 -333.50 -482.50 -482.50 -482.50 -482.50 -304.70 -155.70 No. 11 12 13 14 15 16 17 18 19 20 Symbol P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 X 579.00 579.00 579.00 270.80 121.80 -27.20 -176.20 -579.10 -579.10 -579.10 Y 142.30 291.30 440.30 482.50 482.50 482.50 482.50 411.50 262.50 113.50 10 P10 579.10 -6.70 Note: The original point of the coordinate is the die center. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 12 Silan Semiconductors PCB WIRE LAYOUT SCHEMATIC: SC50560 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. * Recommended triode use 9014. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 ¡ * The emitter of triode connect 1 resistor at least. 13 Silan Semiconductors PACKAGE OUTLINE SC50560 UNIT: mm 2.54 0.25 0.05 3.1MAX DIP-20-300-2.54 6.60 0.25 7.62(300) 26.4 0.3 1.27 3.00MIN 4.36MAX 15 degree 0.51MIN 0.46 0.08 1.778MAX SOP-20-375-1.27 UNIT: mm 0.4 1.27 11.43 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 B 12.7 0.25 14 B 0.4 0.1 B 0.25 0.05 9.525(375) BB 10.2 7.6 0.3 B B B B Silan Semiconductors Attach Revision History Data 2000.12.31 2002.01.04 SC50560 REV 2.0 2.1 Description Change name of company in page footer Delete “or floating “ in “6.code format modes” Modify the “Pin configuration “ Page 6 1 8-11 13 14 4 2002.02.28 2.2 Modify the “Application circuit” Add the “PCB wire layout schematic” Modify the “Package outline” 2002.03.21 2.3 Modify the “figure3” and “figure 4” HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.3 2002-03-21 15