UNISONIC TECHNOLOGIES CO., LTD RCT02 CMOS IC ENCODER FOR REMOTE CONTROLLER WITH FIVE FUNCTIONS DIP-14 DESCRIPTION The chip can be used with the decoder UTC RCR02 to provide a complete control functions to the remote-controlled toy. The UTC RCT02 has five input pins corresponding with the five function buttons i.e, forward, backward, rightward, leftward and turbo. The encoding circuit in the UTC RCT02 sends digital codes to the two output pins SO and SC. The digital codes correspond to the definite function buttons or their combinations. The SO and SC outputs are used in wireless and infra-red applications respectively. SOP-14 There is an internal oscillator in the UTC RCT02. By adding an external resistor conveniently, the oscillator will be constructed. The oscillator frequency can be adjusted by the external resistor. The relative error between the frequencies of the two on chip oscillators in the UTC RCT02 and UTC RCR02 must be less than ±25%. The auto-power-off function is achieved by an internal counter. When the UTC RCT02 is powered on, the counter is reset and begin to count. Any action of push down or release the function button also reset the counter. The PC pin will keep on a high level until the counter counts up to about 4 minutes. The PC output is used to control on/off state of the external power supply. Pressing OFF button can also shut down the power supply. Press on any function button will wake up the chip promptly. FEATURES *Five input pins used for five control buttons *Operating power-supply voltage range: 2.5 ~ 5.0V *Auto-power-off if no press on any button in 4 minutes or continuously press on any button over 4 minutes *Manual-power-on/off with ON/OFF button *One output pin used for external power control *Press on any button as wake up *On-chip oscillator with an external resistor *Low operating current *Few external components needed ORDERING INFORMATION Ordering Number Lead Free RCT02L-D14-T RCT02L-S14-T RCT02L-S14-R Halogen Free RCT02G-D14-T RCT02G-S14-T RCT02G-S14-R www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd. Package Packing DIP-14 SOP-14 SOP-14 Tube Tube Tape Reel 1 of 11 QW-R502-002. D RCT02 CMOS IC PIN CONFIGURATION PIN DESCRIPTION Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin Name RIGHTB TESTB GND BACKWARDB FORWARDB TURBOB SC SO VDD PC OSCO OSCI OFF LEFTB Description The rightward function will be selected, if this pin is connected to GND This pin is used for testing mode Negative power supply The backward function will be selected, if this pin is connected to GND The forward function will be selected, if this pin is connected to GND The turbo function will be selected, if this pin is connected to GND Output pin of the encoding signal with carrier frequency Output pin of the encoding signal without carrier frequency Positive power supply Power control output pin Oscillator output pin Oscillator input pin This pin is used to shut down the external power supply The leftward function will be selected, if this pin is connected to GND BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 11 QW-R502-002. D RCT02 ABSOLUTE MAXIMUM RATINGS PARAMETER DC Input Voltage Supply Voltage to Ground Potential (Inputs &VDD Only) Supply Voltage to Ground Potential (Outputs & D/O Only) DC Output Current Power Dissipation Ambient Temperature With Power Applied Storage Temperature CMOS IC SYMBOL VIN IOUT PD TA TSTG UNIT V V V mA mW C C DC ELECTRICAL CHARACTERISTICS (Over the operating rating, TA = -10C~ +40C, VDD=4.0V ± 10%) PARAMETER SYMBOL TEST CONDITIONS Operating Voltage VDD Input Low Voltage VIL Guaranteed Logic Low Level Output High Voltage VOH IOUT =1.0mA Output Low Voltage VOL IOUT =150μA Output High Current IOH VOUT =1.4V Supply Current IDD Output unloaded Standby Current ISTB OFF state Input Current IIN Pin 1,4,5,6,14 Output Low Current IOL VOUT =0.5V VALUE -0.5 ~ +5.5 -0.5 ~ +5.5 -0.5 ~ +5.5 20 500 -10 ~ +40 -25 ~ +85 MIN 2.5 TYP 4.0 MAX 5.0 0.5 3.5 0.5 -4.0 300 10 60 150 UNIT V V V V mA μA μA μA μA AC ELECTRICAL CHARACTERISTICS (Over the operating rating, TA = -10C ~ +40C, VDD= 4.0V ± 10%) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Oscillator Frequency (Note 1) FOSC TA=25C, R=200KΩ 102 128 154 KHz Carrier Frequency of SC Pin FCSC FOSC=102 ~ 154KHz 51 64 77 KHz Time of Auto-Power-Off (Note 2) TOFF* FOSC=102 ~ 154KHz 3.2 4 4.8 min. Cycle Time of Function Code TFUN FOSC=102 ~ 154KHz 0.8 1 1.2 ms Cycle Time of Start Code TSTA FOSC=102 ~ 154KHz 1.6 2.1 2.4 ms Note: 1. The relative error between the frequencies of the two on-chip oscillators in the UTC RCT02 and UTC RCR02 must be less than ± 25%. 2. When adjust the external oscillator resistor, the auto-power-off time will vary relevantly. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 11 QW-R502-002. D RCT02 CMOS IC CODE FORMAT (W1 is used for function codes, W2 for start codes) W1 W1: 1KHz 50% Duty Cycle Typical W2 W2: 500Hz 75% Duty Cycle Typical WORD FORMAT Start Code: 4W2 Function Code: n ' W1 1 Word ENCODING TIMING W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’W1- - - - - - - - Press any buttons Encoding output 1st word 2nd word last word 1 Function Codes Number of Function Codes (n) W1 4 10 16 22 28 34 40 46 52 58 64 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 3 14 15 End Codes Function Buttons (End Code) Forward Forward & Turbo Turbo (Turbo/Forward) & Left (Turbo/Forward) & Right Backward Backward & Right Backward & Left Left Right 4 of 11 QW-R502-002. D RCT02 CMOS IC PC OUTPUT TIMING Note: There is no press on any function button. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 11 QW-R502-002. D RCT02 CMOS IC BLOCK DIAGRAM OF APPLICATION CIRCUIT (1) 5~12V 1 2 3 4 5 6 7 RIGHTB LEFTB TESTB OFF 14 GND OSCI 12 BACK OSCO 11 FOR TURBOB SC POWER OFF 13 PC 10 VDD SO 9 8 + UTC RCT02 RF TRANSMITTER Note: 1.The power supply for above circuit should be 5.0V ~ 12V. 2. This circuit is for wireless application. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 11 QW-R502-002. D RCT02 CMOS IC BLOCK DIAGRAM OF APPLICATION CIRCUIT (2) 2.5~5.0V 1 2 3 4 5 6 7 RIGHTB TESTB GND BACK FOR TURBOB SC LEFTB OFF OSCI OSCO PC VDD 14 13 POWER OFF 12 11 10 9 SO 8 UTC RCT02 RF TRANSMITTER Note: 1.The power supply for above circuit should be 2.5V ~ 5.0V. 2. This circuit is for wireless application. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 11 QW-R502-002. D RCT02 CMOS IC BLOCK DIAGRAM OF APPLICATION CIRCUIT (3) 5~12V UTC RCT 02 1 2 3 4 5 6 7 RIGHTB TESTB LEFTB 14 13 OFF GND OSCI BACK OSCO PC FOR VDD TURBOB SO SC POWER OFF 12 11 10 9 8 INFRA- RED DIODES + + Note: 1. The power supply for above circuit should be 5.0V ~ 12V. 2. This circuit is for infra-red application. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 11 QW-R502-002. D RCT02 CMOS IC BLOCK DIAGRAM OF APPLICATION CIRCUIT (4) Note: 1.The power supply for above circuit should be 2.5V~ 5.0V. 2. This circuit is for infra -red application. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 11 QW-R502-002. D RCT02 TYPICAL APPLICATION FOR TRANSIMIT CIRCUIT WITH 9V BATTERY R11 10M C12 C11 V7 0.01u 4.7u 4148 R4 6.8K SO 8 9 SC R3 220K 7 6 5 FOR TURBOB VDD PC 10 11 OSCO BACK 4 OSCI 3 GND OFF TESTB R10 1K CR1 27.145 V2 9014 S1 V5 8550 V4 4.7V R12 10M R7 200K 12 13 S5 2 LEFTB 14 S6 R9 330 + POWER OFF 1 RIGHTB CMOS IC S2 S3 S4 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw L1 2.2u C7 68 C8 0.02U C3 47 R2 4.7K V3 LED V1 9014 C9 R5 68 3.3K R1 100 R8 3.9K V6 9013 B1 9V A1 ANTENNA L2 2.2u C4 150 L3 C2 150 L4 6.8u C1 100 C6 0.2 u R6 100 10 of 11 QW-R502-002. D RCT02 C9 68 R5 33K R1 100 C6 0.2u C1 100 R4 6.8K V2 9014 R6 100 C7 68 C3 47 L1 2.2u V4 4.2V R3 CR1 220K 27.145 C12 C11 01U 3.3U R9 330 C8 02u V1 9014 L4 C4 L3 6.8u 150 L2 2.2u A1 ANITENNA TYPICAL APPLICATION FOR TRANSIMIT CIRCUIT WITH 9V BATTERY UTC RCT 0 2 8 SO SC 7 TURBOB VDD 9 6 10 PC FOR 5 11 OSCO BACK 4 12 OSCI GND 3 13 OFF TESTB 2 1 RIGHTB LEFTB 14 R7 200K B1 9V CMOS IC UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 11 of 11 QW-R502-002. D