RCR03

RCR03 UTC | Alldatasheet

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Technical content

UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R502-003,A

3 FUNCTION DECODER FOR

DESCRIPTION

The UTC RCR03 is CMOS LST designed for the remote controlled toy. The received signal is amplified by the three-stage amplifier, and then the appropriate amplified signal is sampled, fault-tolerantly checked and decoded to control the actions of the remotecontrolled toy. There is an oscillator in the RCR03. By adding an external resistor conveniently, the oscillator will be construted. The oscillator frequency can be adjusted by the external resistor. Pressing the ON/OFF button can control the output level of the PC pin. The UTC RCR03,the auto-power-off functionsis achieved by an internal counter.When the RCR03 is powered on the counter is reset and begin to count. Any received encoding signal also reset the counter. The PC output pin will keep on a high level until the counter counts up to about 6 minutes. The PC output is used to control on/off state of the external power supply. The UTC RCR03 have four output pins corresponding with the three actions: Forward, Backward and Left.

FEATURES

• Operating power-supply voltage range: 2.5 to 5.5V * Manual-power-on/off with ON/OFF button *One output pin used for external power control *On-chip oscillator with an external resistor *On-chip reversing amplifiers *Low operating current *Few external components needed *Four output pins for three function *Manual Power on/off function DIP-16

UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R502-003,A RCR03 LOCK DIAGRAM ON/OFF OSCI Oscillator Timing Generator Power Control Decoding Circuit Signal Sample and Fault- Tolerant Check Output Circuit Amp Amp Amp OSCO SI VI1 VI2 VO1 VO2 PC FORWARD FORWARDB BACKWARD LEFT PRODUCT PIN CONFIGURATION AND DESCRIPTION ON/OFF OSCI OSCO SI VI1 VI2 VO1 VO2 PC FORWARD FORWARDB BACKWARD LEFT NC GND VDD PIN NO. PIN NAME DESCRIPTION

1 VO2 Output pin for the amplifier 2

2 PC Power control output pin

3 GND Negative power supply

4 SI Input pin of the encoding signal

5 OSCI Oscillator input pin

6 NC No Connection

7 OSCO Oscillator output pin

8 BACKWARD Backward output pin

9 LEFT Left output pin

10 FORWARDB Reversing output of the forward pin

11 FORWARD Forward output pin

12 VDD Positive power supply

13 ON/OFF Input pin used to control the output level of the PC

14 VI1 Input pin for the amplifier 1

15 VO1 Output pin for the amplifier 1

16 VI2 Input pin for the amplifier 2

UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R502-003,A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNIT DC Input Voltage V IN -0.5 ~ +6.5 V Supply Voltage to Ground Potential(Inputs &VDD Only) -0.5 ~ +6.5 V Supply Voltage to Ground Potential(Outputs &D/O Only) -0.5 ~ +6.5 V DC Output Current Io 20 mA Power Dissipation P D 500 mW Ambient Temperature With Power Applied T A -10 to +40 °C Storage Temperature T STG -25 to +85 °C 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 5.5 V Supply Current I DD * 3.0 mA Standby Current I STB * 20 µA Input Current I IN For ON/OFF pin 60 µA Input Low Voltage V IL Guaranteed Logic Low Level 0.5 V Input High Voltage V IH Guaranteed Logic High Level VDD-0.5 V Output High Voltage V OH I OUT=200µA VDD-0.5 V Output High Current I OH V OUT=1.4V -1.5 mA Output Low Voltage V OL I OUT=500µA 0.5 V Output Low Current I OL V OUT=0.5V 500 µA Note*:Output unload: 2.2MΩ feedback resistors for the two reversing amplifiers; 470k Ω external resistor for the on-chip oscillator. AC ELECTRICAL CHARACTERISTICS (Over the operating rating,TA= -10°C to +40°C,VDD=4.0V±10%) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Oscillator Frequency Fosc T A=25°C,R=470KΩ 70 88 106 KHz Frequency of received backward code F BACK Fosc=88KHz 200 400 Hz Frequency of received forward code F FOR Fosc=88KHz 0.8 1.2 KHz Frequency of received left code F LEFT Fosc=88KHz 2.4 3.6 KHz SI Pin Vpp Receive Sensitivity V SI Guaranteed EffectiveDecoding 300 mV Time of Auto-Power-Off T OFF* Fosc=70 to 106 KHz 4.8 6 7.2 min. Note*:when adjust the external oscillator resistor, the auto-power-off time will vary relevantly. Effect decoding frequency variation, Typical ±20%.

UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R502-003,A OUTPUT TIMING Backward Output Timing SI BACKWARD 3.0ms Typical 48ms Typical 150ms Typical wave 1 Forward Output Timing SI FORWARDB FORWARD 1ms Typical 16ms Typical 150ms Typical wave 2 Left Output Timing SI LEFT 0.33ms Typical 5.3ms Typical 150ms Typical wave 3

UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R502-003,A PC Output Timing VDD ON/OFF wave 4 PC TEST CIRCUIT Figure 1 *Forward Signal F=1kHz *Backward Signal F=340Hz *Left Signal F=3kHz Signal Generator B 4.5V 4.7u C1 +3 0 VO2 VO1 VI2 VI1 PC GND ON/OFFSI VDDOSCI FORNC FORBOSCO LEFTBACK Rf 470K

UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R502-003,A Figure2 Testing stand-by current B VO2 VO1 VI2 VI1 PC GND ON/OFFSI VDDOSCI FORNC FORBOSCO LEFTBACK Rf 470K 4.7U C1 + 4.5V The Sender Circuit LFET 4.7U C9+ B1 Figure 3 Note: Typical R7=4.4K R8=22.3K 0.022U C8 47n 1.2K FORW ARD BACKWARD 27K 27K 6.8K 6.8K 100K 200K IN4148 IN4148 47n 2200 9015 9015 R10 10K 945 27.145 XTAL 2.2U 100 10K R11 100 10T 150 ANT

UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R502-003,A Application Circuit(6~12V) Figure 4 APPLICATOIN CIRCUIT (6-12V) VO2 VO1 VI2 VI1 PC GND ON/OFF SI VDD OSCI FORW NC FORB OSCO BACK 470K LEFT 302 820 22U 4.7u C2 47 V1 9014 180KC6 18C1 4 203 10T C9 30C10 0.1u 2.2K R10 2.2KR12 4.3K 2.2MN1 0.1u 470 2.2MC12 100u C13 0.01u POW ER ON/OFF 2.2K C11 1000 R20 C15 V13 4148 V12 4.7V R11 R9 1K R14 R17 100 9013 V11 9013 V10 8050 8050 8050 8550 8550 9013 9013 R19 240

8550 R13

3.9K R21 R18 100 220 M 3RCR03

UTC UNISONIC TECHNOLOGIES CO., LTD. 8 QW-R502-003,A Application Circuit(3~4.5V) Figure 5 APPLICATION CIRCUIT(3-4.5V) VO2 VO1 VI2 VI1 PC GND ON/OFF SI VDD OSCI FORW NC FORB OSCO BACK 470K LEFT 302 820 22U 4.7U C2 47 V1 9014 180KC6 18C1 4 203 10T C9 30C10 0.1U 2.2K R10 2.2KR12 4.3K 2.2MN1 0.1U 470 2.2MC12 100U C13 0.01U POW ER ON/OFF 2.2K C11 1000 R11 R9 1K R14 R17 100 9013 V11 9013 V10 8050 8050 8050 8550 8550 9013 9013 R19 240 3.9K R21 R18 100 220 M 3V-4.5V R15 10K R16 10K M

UTC UNISONIC TECHNOLOGIES CO., LTD. 9 QW-R502-003,A 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.