SCTX5A

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Technical content

Features

 Wide operating SCTX5A voltage range: 3.6V to 12V  SCRX5A voltage range: 3.0V to 12V  SCTX5A very low Stand-by current  Auto power-OFF function for SCTX5A  Few external components needed  SCRX5A built-in 3.6V zener  9-function remote controller controlling forward/ backward/ turbo/ right-turn/ left-turn/ trigger1~4 functions General Description The SCTX5A/RX5A are a pair of CMOS LSIs designed for remote controlled car applications. The SXTX5A/RX5A have function ) of the remote controlled car. SCTX5A/RX5A have Forward ( Backward ) combined with the Turbo application. During normal operation without Turbo. Forward ( Backward ) output s ends a 60Hz signal from SCRX5A when Forward ( Backward ) and Turbo are both in effect. The output signal becomes completely high. This function is depicted as below. Input condition O/P Condition Forward Backward Turbo Forward =60Hz Low Low Backward Low =60Hz Low Forward +turbo =high Low = high Backward +turbo Low = high = high An Auto Shut-Off mechanism is built-in according to Toy Safety Requirement and effective during over-current situation in motor driver. The active high input applying to this Auto Shut -Off pin will turn off the motor. ( VT pin, when unused. Has to be connected to ground. The transfer point=1.4V) Absolute Maximum Ratings Comments* Never allow a stress to exceed the values listed under “ Absolute Maximum Ratings .” Otherwise the device would suffer from a permancnt damage. Nor is a stressat the listed value be allowed to persist over a period. Since an extended exposure t o the absolute maximumrating condition may also affect the reliability of thedevice. If not causing a damage thereof.

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 2 页 共 7 页

Electrical Characteristics

SCTX5A（VDD=9V，Fosc=100KHz，TA=25℃，unless otherwise specified） Parameter Symbol Min. Typ. Max. Operating V oltage VDD 3.6V 9V 12V Operating Current IDD - - 1.5mA Stand-by Current ISTB - - 1uA DC O/P Driving Current (RF) Idrive - 10mA - AC O/P Driving Current (IR) Idrive - 6mA - AC O/P Frequency Faudio - 500Hz - SCRX5A（VDD=9V，Fosc=100KHz，TA=25℃，unless otherwise specified） Parameter Symbol Min. Typ. Max. Operating V oltage VDD 3.0V 9V 12V Operating Current IDD - 30mA - O/P Driving Current Idrive 5mA - - O/P Driving Current（F1-F4） Idf 5mA - - Effect Decoding Frequency V ariation Ftolerance -50% - 50% PIN ASSIGNMENTS 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 29-Dec-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5RX5.Ddb Drawn By : 8 9 16RIGHTB TESTB GND BACKWARDB FORWARDB TURBOB SC F34B F2B SO VDD PC OSCO OSCI FIB LEFTB 11 12 22VO2 GND SI OSCI OSCO RIGH LEFT VT ROB LDB LRTD BACKWARD FORWARD TURBO VDD VI1 VI2 VO1 SCTX5A/DIP-16/SOP/16 SCRX5A/DIP-22 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 29-Dec-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5RX5.Ddb Drawn By : 12 13 VO2 GND SI OSCI OSCO RIGH LEFT VT ROB LDB LRTD BACKWARD FORWARD TURBO VDD VI1 VI2 VO1 SCRX5A/SOP-24L NC NC

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 3 页 共 7 页 Pin Description SCTX5A/DIP-16/SOP-16 Pin No. Designation Desctiption

1 RIGHTB The rightward function will be selected when this pin is connected to GND

2 TESTB This pin is used for testing mode

3 GND Negative power supply

4 BACKWARDB The backward function will be selected when this pin is connected to GND

5 FORWAROB The forward function will be selected when this pin is connected to GND

6 TURBOB The turbo function will be selected when this pin is connected of GND

7 SC Output pin of the encoding signal with carrier frequency

8 F34B F3 and F4 function select ( sequential trigger )

9 F2B F2 function select

10 SO Output pin of the encoding signal without carrier frequency

11 VDD Positive power supply

12 PC Power control output pin

13 OSCO Oscillator output pin

14 OSCI Oscillator input pin

15 F1B F1 function select

16 LEFTB The leftward function will be selected when this pin is connected t GND

Pin No. Designation Desctiption

1 VO2 Inverter 2 output pin for power amplify

2 GND Negative power supply

3 SI Input pin of the encoding signal

4 OSCI Oscillator input pin

5 OSCO Oscillator output pin

6 F1 F1 function output pin

7 RIGHT Rightward output pin

8 F2 F2 function output pin

9 LEFT Leftward output pin

10 VT Auto shut-OFF input pin

If VT voltage exceeds 1.4V , all outputs shut off automatically

11 RDB Right disable pin

12 LDB Left disable pin

13 LRTD Left/right turbo disable pin

14 BACKWARD Backward output pin

15 F4 F4 function output pin

16 FORWARD Forward output pin

17 F3 F3 function output pin

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 4 页 共 7 页

18 TURBO TURBO output pin

19 VDD Positive power supply

20 VI1 Inverter 1 input pin for signal amplify

21 VO1 Inverter 1 output pin for signal amplify

22 VI2 Inverter 2 input pin for signal amplify

Pin No. Designation Desctiption

9 F2 F2 function output pin

10 LEFT Leftward output pin

11 VT Auto shut-OFF input pin

If VT voltage exceeds 1.4V , all outputs shut off automatically

12 RDB Right disable pin

13 LDB Left disable pin

14 LRTD Left/right turbo disable pin

15 BACKW ARD Backward output pin

16 F4 F4 function output pin

18 FORW ARD Forward output pin

19 F3 F3 function output pin

20 TURBO TURBO output pin

21 VDD Positive power supply

22 VI1 Inverter 1 input pin for signal amplify

23 VO1 Inverter 1 output pin for signal amplify

24 VI2 Inverter 2 input pin for signal amplify

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 5 页 共 7 页 Pad Assignment 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 29-Dec-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5RX5.Ddb Drawn By : VDD PC OSC0 OSC1 FI LEFT RIGHT GND BACK FOR TURSCF34F2SO IC:SCTX5A IC SUB to VSS 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 29-Dec-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5RX5.Ddb Drawn By : FOR TUR VDD VI1 VI2VO1 VO2 GND S1 OSC0 OSC1 RIGHT LEFTVTRDBLDBLRTD BACK WARD IC:SCRX5A IC SUB to VDD APPLICATION CIRCUIT SCRX5A 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 14-Jul-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5SCRX5.Ddb Drawn By : ANT 1 2 3 4 5 6 7 8 9 10 11 1213141516 SCRX5A 1718 VDD 47P 10P 9018 可调 3.3uH 4.7U 302 820R 33K 3.9M 180K 3.3K 330R220U 3.3K 104 330R 103 501 3.9M 1.5K 1.5K 270K 222 1.5K 1.5K 820R 820R 8550 8550 MD1 0.1U 9014 8050 9014 8050 220R 19202122 104 稳压管 8050 D 3.3UH

4001 X 2 4001

0.1U 9014 8050 9014 8050 220R

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 6 页 共 7 页 SCTX5A 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 18-May -2004 Sheet of File: E:\\规格图\\xie\\SCTX5RX5.Ddb Drawn By : 1 2 3 4 5 6 7 8 910111213141516 TX5 VDD ANT 3.3UH 100P 151 3.3UH 6.8K SC8050 203 100R 33K 68P 100R 47P 3.3UH 220K CRYSTAL SC9014 390K 330R 0.02U 33U SW1 0.02U 151 6.8UH 0.02U SW2 Testing Circuit Fosc for（SCRX5A）≌100KHz Fosc for（SCTX5A）≌100KHz 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 14-Jul-2003 Sheet of File: E:\\超晶规格图\\xie\\SCTX5SCRX5.Ddb Drawn By : 1 2 3 4 5 6 7 8 910111213141516 104 100uF RF Transmitter FIB LEFTB RIGHT BACKWARDB FORWARDB TURBOB F34B F2B fosc=128KHz 270K 1 2 3 4 5 6 7 8 9 10 11 1213141516171819202122 RF Receiver 240K 1N4148 M VDD 10uF TURBO FORWARD BACKW ARD F1 RIGHT F2 LEFT SCTX5A SCRX5A SCTX5A output pin (so) has an inverted phase with SCRX5A input ( SI ). If SCTX5A&SCRX5A are connected without using a RF module. An inverter has to be inserted between this 2 pins.

深圳市富满电子有限公司 SHENZHEN FUMAN ELECTRONICS CO., LTD. SCTX5A/RX5A(文件编号：S&CIC00238) REMOTE CONTROLLER WITH NINE FUNCTIONS 第 7 页 共 7 页 1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 31-Jul-2003 Sheet of File: A:\\SCTX5SCRX5.Ddb Drawn By : VDD SCTX5 SO VDD VDD SCRX5 SI connect directly pin10 pin3 RX5A R6 INDEX VDD ( V )R6 12 1.2K 9 750Ω 6 300Ω