RCR02

UTC RCR02 Decoder For Remote Controller With Five Functions DESCRIPTION The chip can be used with the encoder RCT02 to provide a complete control functions to the remote-controlled toy. The RCR02 has five output pins corresponding with the five function actions i.e, forward, backward, rightward, leftward and turbo. The received signals are amplified by the three-stage amplifier, and then the appropriate amplified signals are sampled, fault-tolerantly checked and decoded to control the actions of the remote-controlled toy. There is an internal oscillator in the RCR02.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 RCT02 and RCR02 must be less than ±25%. CMOS IC SOP-16 DIP-16 FEATURES *Five output pins for control functions *Operating power-supply voltage range: 2.5 to 5.0V *On-chip reversing amplifiers *On-chip oscillator with an external resistor *Low operating current *Few external components needed LOGIC BLOCK DIAGRAM OSCI Oscillator OSCO Timing Generator RIGHT Latch Output Circuit LEFT TURBO FORWARD BACKWARD SI Amp Signal Sample and FaultTolerant Check VO1 Decoding Circuit VI1 Amp VI2 Amp VO2 Control Logic LDB RDB UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R502-001,B UTC RCR02 PRODUCT PIN CONFIGURATION AND DESCRIPTION VO2 GND SI OSCI OSCO RIGHT LEFT RDB 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VI2 VO1 VI1 VDD TURBO FORWARD BACKWARD LDB CMOS IC Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VO2 GND SI OSCI OSCO RIGHT LEFT RDB LDB BACKWARD FORWARD TURBO VDD VI1 VO1 VI2 Description Output pin for the amplifier 2 Negative power supply Input pin of the encoding signal Oscillator input pin Oscillator output pin Rightward output pin Leftward output pin Rightward function disable, if this pin is connected to GND Leftward function disable, if this pin is connected to GND Backward output pin Forward output pin Turbo output pin Positive power supply Input pin for the amplifier 1 Output pin for the amplifier 1 Input pin for the amplifier 2 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 SYMBOL VIN VALUE -0.5 ~ +5.5 -0.5 ~ +5.5 -0.5 ~ +5.5 20 500 -10 ~ +40 -25 ~ +85 UNIT V V V Io PD TA TSTG mA mW °C °C UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R502-001,B UTC RCR02 PARAMETER Operating Voltage Supply Current Input Current Input Low Voltage Input High Voltage Output High Voltage Output High Current Output Low Voltage Output Low Current on-chip oscillator. CMOS IC SYMBOL VDD IDD IIN VIL VIH VOH IOH VOL IOL DC ELECTRICAL CHARACTERISTICS(Over the operating rating,TA= -10°C~ +40°C,VDD=4.0V±10%) TEST CONDITIONS * For RDB and LDB pins For RDB and LDB pins For RDB and LDB pins IOUT=400µA VOUT=1.4V IOUT=1.0mA VOUT=0.5V MIN 2.5 TYP 4.0 MAX 5.0 3.0 60 0.5 UNITS V mA µA V V V mA V mA 3.5 3.5 -1.5 0.5 1.0 Note*:Output unlosded; 2.2MΩfeedback resistors for the two reversing amplifiers; 200KΩ external resistor for the AC ELECTRICAL CHARACTERISTICS(Over the operating rating, TA= -10°C~ +40°C,VDD=4.0V±10%) PARAMETER Oscillator Frequency* SI Pin Vpp Receive Sensitivity Cycle Time of Function Code Cycle Time of Start Code less than±25% SYMBOL Fosc VSI TFUN TSTA TEST CONDITIONS TA=25°C,R=200KΩ Guaranteed Effective Decoding FOSC=128KHz FOSC=128KHz MIN 102 300 0.75 1.5 TYP 128 1 2 MAX 154 1.25 2.5 UNITS KHz mV ms ms Note*:The relative error between the frequencies of the two on-chip oscillators in the RCT02 and RCR02 must be BIT FORMAT FOR THE RECEIVED SIGNAL (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 FOR RECEIVED SIGNAL Start Code: 4 ' W2 Function Code: n ' W1 1 Word UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R502-001,B UTC RCR02 ENCODING INPUT FORMAT AND DECODING RESULT Number of Function Codes(n)W1 4 10 16 22 28 34 40 46 52 58 64 CMOS IC Decoding Result End Code Forward Forward Turbo Forward & Left Forward & Right Backward Backward & Right Backward & Left Left Right W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’W1- - - - - - - - DECODING TIMING Press any buttons on RCT02 Encoding output from RCT02 1 1st word 2nd word last word 2 3 14 15 Function Codes Decoding output from RCR02 9ms 9ms End Codes UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R502-001,B UTC RCR02 BLOCK DIAGRAM OF APPLICATION CIRCUIT CMOS IC BATTERY FEEDBACK AND FILTER 1 2 3 4 5 6 7 8 VO2 GND SI OSCI OSCO RIGHT LEFT RDB VI2 VO1 VI1 VDD TURBO FOR BACK LDB 16 15 14 13 12 11 10 9 RF RECEIVER + RCR02 MOTOR DRIVING CIRCUITS UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R502-001,B 15 14 13 12 11 16 10 9 1 2 3 4 5 6 7 8 UTC C15 .01u C13 4.7u S1 + C14 .01u R12 510 A1 + + C2 47 C1 4 C12 100u L2 V8 9013 R16 100 C16 .02u R17 100 M1 V7 9013 V2 9013 R3 2.2K 9V V9 8550 V5 8550 12V C6 V1 18 C1815 R2 180K + C4 4.7u C9 .1u R4 2.2M C8 470 R23 R24 1K 1K R15 330 R18 330 V3 8050 V6 8050 R25 1K C7 .1u C5 .02u VD1 4.2V R20 100 R11 10 R10 4.3K C18 100u C19 .1u L1 2.2u R5 2.2K C10 30 V11 9013 V12 8050 R9 330 V15 8050 R6 2.2M UTC RCR02 C3 3000 RCR02 R13 220 V13 8550 C17 .02u V14 8550 R14 220 V10 9013 TYPICAL APPLICATION FOR RECEIVE CIRCUIT WITH FIVE FUNCTION UNISONIC TECHNOLOGIES CO., LTD. R7 2.2K C11 1000 R8 200K R12 1K R22 1K R19 330 CMOS IC 6 QW-R502-001,B UTC RCR02 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. UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R502-001,B