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UTC RCR03
3 FUNCTION DECODER FOR REMOTE CONTROLLER
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.
CMOS
DIP-16
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
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R502-003,A
UTC RCR03
RCR03 LOCK DIAGRAM
ON/OFF OSCI Oscillator OSCO
CMOS
Timing Generator
Power Control
PC
SI
Amp
Signal Sample and FaultTolerant Check VO1
FORW ARD Decoding Circuit Output Circuit FORW ARDB BACKW ARD LEFT
VI1
Amp
VI2
Amp
VO2
PRODUCT PIN CONFIGURATION AND DESCRIPTION
VO2 PC GND SI OSCI NC OSCO BACKWARD 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VI2 VO1 VI1 ON/OFF VDD FORWARD FORWARDB LEFT
PIN NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME
VO2 PC GND SI OSCI NC OSCO BACKWARD LEFT FORWARDB FORWARD VDD ON/OFF VI1 VO1 VI2
DESCRIPTION
Output pin for the amplifier 2 Power control output pin Negative power supply Input pin of the encoding signal Oscillator input pin No Connection Oscillator output pin Backward output pin Left output pin Reversing output of the forward pin Forward output pin Positive power supply Input pin used to control the output level of the PC Input pin for the amplifier 1 Output pin for the amplifier 1 Input pin for the amplifier 2
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R502-003,A
UTC RCR03
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
SYMBOL
VIN
VALUE
-0.5 ~ +6.5 -0.5 ~ +6.5 -0.5 ~ +6.5 20 500 -10 to +40 -25 to +85
UNIT V
V V
Io PD TA TSTG
mA mW
C C
DC ELECTRICAL CHARACTERISTICS (Over the operating rating,TA= -10C~ +40C,VDD=4.0V10%)
PARAMETER
Operating Voltage Supply Current Standby Current Input Current Input Low Voltage Input High Voltage Output High Voltage Output High Current Output Low Voltage Output Low Current on-chip oscillator.
SYMBOL
VDD IDD ISTB IIN VIL VIH VOH IOH VOL IOL
TEST CONDITIONS
* * For ON/OFF pin Guaranteed Logic Low Level Guaranteed Logic High Level IOUT=200A VOUT=1.4V IOUT=500A VOUT=0.5V
MIN
2.5
TYP
4.0
MAX
5.5 3.0 20 60 0.5
UNITS
V mA A A V V V mA V A
VDD-0.5 VDD-0.5 -1.5 0.5 500
Note*:Output unload: 2.2M feedback resistors for the two reversing amplifiers; 470k external resistor for the
AC ELECTRICAL CHARACTERISTICS (Over the operating rating,TA= -10C to +40C,VDD=4.0V10%)
PARAMETER
Oscillator Frequency Frequency of received backward code Frequency of received forward code Frequency of received left code SI Pin Vpp Receive Sensitivity Time of Auto-Power-Off frequency variation, Typical 20%.
SYMBOL
Fosc FBACK FFOR FLEFT VSI TOFF*
TEST CONDITIONS
TA=25C,R=470K Fosc=88KHz Fosc=88KHz Fosc=88KHz Guaranteed EffectiveDecoding Fosc=70 to 106 KHz
MIN
70 200 0.8 2.4 300 4.8
TYP
88
MAX
106 400 1.2 3.6
UNITS
KHz Hz KHz KHz mV
6
7.2
min.
Note*:when adjust the external oscillator resistor, the auto-power-off time will vary relevantly. Effect decoding
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R502-003,A
UTC RCR03
OUTPUT TIMING
Backward Output Timing
CMOS
SI 3.0ms Typical BACKWARD
48ms Typical wave 1
150ms Typical
Forward Output Timing
SI 1ms Typical FORWARD FORWARDB
16ms Typical wave 2
150ms Typical
Left Output Timing
SI 0.33ms Typical LEFT 5.3ms Typical 150ms Typical
wave 3
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R502-003,A
UTC RCR03
PC Output Timing
CMOS
VDD
ON/OFF
PC
wave 4
TEST CIRCUIT
10 C9 30
C1 + 4.7u
B 15 14 13 12 11 16 10 OSCO FORB 7 9 8 BACK LEFT 4.5V
OSCI 5
GND
VO2
Signal Generator
PC
ON/OFF
1
2
3
4
Figure 1 *Forward Signal F=1kHz *Backward Signal F=340Hz *Left Signal F=3kHz
UTC
UNISONIC TECHNOLOGIES CO., LTD.
6
Rf 470K
NC
SI
FOR
VDD
VO1
VI2
VI1
5
QW-R502-003,A
UTC RCR03
10 S2 C1 + 4.7U B 15 14 13 12 11 16 C9 30 10 9
CMOS
VI2
ON/OFF
OSCO FORB 7
4.5V
OSCI
GND
6 NC
1
2
3
4
5
s1
Rf 470K
Figure2 Testing stand-by current
The Sender Circuit
V1 9015 R1 27K
V2 9015 R2 27K C2 47n R3 6.8K R4 6.8K C3 2200 R10 10K XTAL L1 2.2U C5 100 A1 ANT
+ C9 4.7U
B1 9V
C1 C8 0.022U 47n R5 1.2K
LFET S1 R7 100K S2 FORW ARD V3 IN4148 27.145 V5 945
8
BACK
VO2
PC
SI
LEFT
FOR
VDD
VO1
VI1
C4 47
L2 10T
S3 BACKW ARD
R8 200K
V4 IN4148
R9 10K
R11 100
C7 150
C6 56
Figure 3 Note: Typical R7=4.4K R8=22.3K
UTC
UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R502-003,A
9
11
16
15
14
13
VI2
VO1
VI1
FORW
FORB
LEFT
ON/OFF
N1 C9 30
VDD
12
10
SI
PC
OSCI
NC
OSCO
VO2
GND
1
2
3
5
6
7
8
BACK
R6 2.2M
4
UTC
R20 1M V9 8550 A1
++
+
UTC RCR03
C2 47 C1 4 C13 0.01u L2 10T C8 0.1u C5 203 C7 470 POWER ON/OFF V2 9013 R10 2.2K R17 100 V4 8550 V5 8550 R18 100 V7 9013 R21 1K V6 8050 C6 18 R2 180K R13 3.9K V8 9013
R12 C12 4.3K 100u V12 4.7V R19 240
V13 C15 4148 1u
Application Circuit(6~12V)
V1 9014
L1 22U
+
C3 302
R1 820
C4 4.7u
M1
V3 8050
R5 2.2K R3 2.2M C10 0.1u
R11 1K
R8 220 R9 1K
RCR03
V11 9013 V10 8050
M3
UNISONIC TECHNOLOGIES CO., LTD.
R7 2.2K C11 1000 R4 470K R14 1K Figure 4 APPLICATOIN CIRCUIT (6-12V)
CMOS
7
QW-R502-003,A
A1
V9 8550 R13 3.9K B1 3V-4.5V
+
15
12
16
11
VI2
VO1
VDD
LEFT 9
ON/OFF
FORW
N1 C9 30 VO2 PC SI 1 2 3 GND 4 5 6 NC 8 BACK R6 2.2M R14 1K OSCI
VI1 14 13
UNISONIC TECHNOLOGIES CO., LTD.
C6 18 C8 0.1U C5 203 C7 470 POWER ON/OFF V2 9013 M1 V3 8050 V6 8050 R11 1K R16 10K V7 9013 R21 1K R15 10K R8 220 R9 1K R10 2.2K R17 100 V4 8550 V5 8550 R18 100 V8 9013 L2 10T R5 2.2K R3 2.2M C10 0.1U V11 9013 V10 8050 R7 2.2K C11 1000 R4 470K Figure 5 APPLICATION CIRCUIT(3-4.5V) 7 OSCO FORB 10 M3
UTC
R12 C12 4.3K100U R19 240 C13 0.01U C1 4
C2 47
UTC RCR03
V1 9014
Application Circuit(3~4.5V)
L1 22U
R2 180K
+
C3 302
R1 820
C4 4.7U
CMOS
8
QW-R502-003,A
UTC RCR03
CMOS
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.
9
QW-R502-003,A

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