RCR02 UTC | Alldatasheet
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UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R502-001,B 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%.
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 DIP-16 SOP-16 LOGIC BLOCK DIAGRAM TURBO OSCI Oscillator Timing Generator Latch Decoding Circuit Signal Sample and Fault- Tolerant Check Output Circuit Amp Amp Amp OSCO SI VI1 VI2 VO1 VO2 RIGHT FORWARD BACKWARD LEFT Control Logic LDB RDB
UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R502-001,B PRODUCT PIN CONFIGURATION AND DESCRIPTION RIGHT OSCI OSCO SI VI1 VI2 VO1 VO2 TURBO FORWARD LDB BACKWARDLEFT 9RDB GND VDD Pin No. Pin Name Description
1 VO2 Output pin for the amplifier 2
2 GND Negative power supply
3 SI Input pin of the encoding signal
4 OSCI Oscillator input pin
5 OSCO Oscillator output pin
6 RIGHT Rightward output pin
7 LEFT Leftward output pin
8 RDB Rightward function disable, if this pin is connected to GND
9 LDB Leftward function disable, if this pin is connected to GND
10 BACKWARD Backward output pin
11 FORWARD Forward output pin
12 TURBO Turbo output pin
13 VDD Positive power supply
14 VI1 Input pin for the amplifier 1
15 VO1 Output pin for the amplifier 1
16 VI2 Input pin for the amplifier 2
PARAMETER SYMBOL VALUE UNIT DC Input Voltage V IN -0.5 ~ +5.5 V Supply Voltage to Ground Potential(Inputs &VDD Only) -0.5 ~ +5.5 V Supply Voltage to Ground Potential(Outputs &D/O Only) -0.5 ~ +5.5 V DC Output Current Io 20 mA Power Dissipation P D 500 mW Ambient Temperature With Power Applied T A -10 ~ +40 °C Storage Temperature T STG -25 ~ +85 °C
UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R502-001,B DC ELECTRICAL CHARACTERISTICS(Over the operating rating,TA= -10°C~ +40°C,VDD=4.0V±10%) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Operating Voltage V DD 2.5 4.0 5.0 V Supply Current I DD * 3.0 mA Input Current I IN For RDB and LDB pins 60 µA Input Low Voltage V IL For RDB and LDB pins 0.5 V Input High Voltage V IH For RDB and LDB pins 3.5 V Output High Voltage V OH I OUT=400µA 3.5 V Output High Current I OH V OUT=1.4V -1.5 mA Output Low Voltage V OL I OUT=1.0mA 0.5 V Output Low Current I OL V OUT=0.5V 1.0 mA Note*:Output unlosded; 2.2MΩfeedback resistors for the two reversing amplifiers; 200K Ω external resistor for the on-chip oscillator. AC ELECTRICAL CHARACTERISTICS(Over the operating rating, TA= -10°C~ +40°C,VDD=4.0V±10%) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Oscillator Frequency* Fosc T A=25°C,R=200KΩ 102 128 154 KHz SI Pin Vpp Receive Sensitivity V SI Guaranteed Effective Decoding 300 mV Cycle Time of Function Code T FUN F OSC=128KHz 0.75 1 1.25 ms Cycle Time of Start Code T STA F OSC=128KHz 1.5 2 2.5 ms Note*:The relative error between the frequencies of the two on-chip oscillators in the RCT02 and RCR02 must be less than±25% BIT FORMAT FOR THE RECEIVED SIGNAL (W1 is used for function codes,W2 for start codes) W1 W1:1KHz 50% Duty Cycle Typical 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. 4 QW-R502-001,B ENCODING INPUT FORMAT AND DECODING RESULT W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’W1- - - - - - - - Number of Function Codes(n)W1 Decoding Result
4 End Code
10 Forward
16 Forward
22 Turbo
28 Forward & Left
34 Forward & Right
40 Backward
46 Backward & Right
52 Backward & Left
58 Left
64 Right
from RCT02 1st word 2nd word Function Codes End Codes last word 123 1 4 1 5 Decoding output from RCR02 9ms 9ms
UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R502-001,B BLOCK DIAGRAM OF APPLICATION CIRCUIT MOTOR DRIVING CIRCUITS VO2 VO1 VI2 VI1 RDB GND TURBO SI VDDOSCI FORRIGHT OSCO LEFT BACK LDB BATTERY FEEDBACK AND FILTER RF RECEIVER RCR02
UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R502-001,B TYPICAL APPLICATION FOR RECEIVE CIRCUIT WITH FIVE FUNCTION C10 2.2M 2.2K C11 1000 2.2K .1u 2.2M 3000 2.2u 4.7u .02u 18V1 C1815 180K .1u 2.2K 470 200K R10 4.3K 9013 C15 .01u C12 100u R23 1K R24 9013 R16 100 R15 330 R12 R22 330 R13 220 V11 9013 V12 8050 V13 8550 C17 .02u V14 8550 8050 C16 .02u 8050 C13 4.7u C14 .01u R12 510 VD1 4.2V R20 100 C18 100u C19 .1u R11 R18 330 R17 100 9013 R25 R14 220 V10 9013 R19 330 12V V15 8050 8550 V5 8550 RCR02
UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R502-001,B 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.