TX-2BS

TX-2B/RX-2C TOY CAR REMOTE CONTROLLER WITH FIVE FUNCTIONS DESCRIPTION The TX-2B/RX-2C is a pair of CMOS LSIs designed for remote controlled car applications. The TX-2B/RX-2C has five control keys for controlling the motions (i.e. forward, backward, rightward, leftward and the turbo function) of the remote controlled car. DIP-14 RX-2C TX-2BS RX-2CS TX-2B FEATURES * Wide operating voltage range (VCC=1.8V~5.0V when DC-DC is not used and VCC=1.0V~5.0V when DC-DC is used) * Low stand-by current * In order to be used in the low voltage condition, the DC-DC is added in RX-2C; you can decide whether to use DC-DC; the voltage to turn on is 1.0V ; and the voltage to work is 0.8V ; and the output voltage is 3.0V ; * Auto-power-off function for TX-2B * Few external components are needed DIP-16 SOP-16 ORDERING INFORMATION Device TX-2B TX-2BS RX-2C RX-2CS Package DIP-14-300-2.54 SOP-16-225-1.27 DIP-16-300-2.54 SOP-16-225-1.27 BLOCK DIAGRAM FOSC TEST B 13 OSCI OSCO 2 12 Oscillator 11 Timing Generator RIGHT LEFT TURBO FORWARD BACKWARD 1 14 6 5 4 3 GND 9 VDD 10 PC Latch Circuit Encoding Circuit Logic 8 SO 7 SC TRANSMITTER TX-2B Block Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 1 of 13 TX-2B/RX-2C BLOCK DIAGRAM (continued) OSCI OSCO SI 4 Oscillator Timing generator 13 VDD 5 3 AMP Decoding circuit Counter VO1 VI1 15 14 PLA 9 MOD 6 RIGHT LX 8 DC-DC 7 LEFT latch 12 TURBO 10 BACKWARD 11 FORWARD 2 GND VO2 VI2 1 16 RECEIVER RX-2C Block Diagram ABSOLUTE MAXIMUM RATINGS Characteristics Supply Voltage Input / Output Voltage Storage Temperature Operating Temperature Symbol VDC VI/O Tstg TOPR Value 0.3~6.0 GND-0.2~VDD+0.2 -10~60 -25~125 Unit V V °C °C ELECTRICAL CHARACTERISTICS 1. TX-2B(VDD=4.5V, Fosc=128 KHz, Tamb=25°C, unless otherwise specified.) Characteristics Operating Voltage Low Voltage input Stand-By Current Operating Current SO Driving Current SC Driving Current PC Driving Current Tolerance of frequency Symbol VDD VIL ISTB IDD IDRSO IDRSC IDRPC Ftolerance Function input pin No input Output without load Load=0.7V Load=0.7V Load=0.7V RX-2C oscillator 128KHz Test conditions Min. 1.8 ---20 20 15 -20 +20 Typ. 4.5 ---Max. 5.0 2.3 3.0 0.4 Unit V V μA mA mA mA mA % HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 2 of 13 TX-2B/RX-2C 2. RX-2C (VDD=4.0V, Fosc=128KHz, Tamb=25°C, DC-DC is not used, unless otherwise specified.) Characteristics Operating Voltage Operating Current Driving Current Tolerance of frequency Symbol VDD IDD Idrive Ftolerance Output without load Load=0.7V TX-2B 128KHz Test conditions Min. 1.8 -4.5 -20 Typ. 4.5 --Max. 5.0 1.0 -+20 Unit V mA mA % PIN CONFIGURATION PIN DESCRIPTION 1. TX-2B/TX-2BS Pin No. TX-2B 1 2 3 4 5 6 7 -8 9 10 11 12 13 14 TX-2BS 1 2 3 4 5 6 7 8, 9 10 11 12 13 14 15 16 Symbol RIGHT TEST GND BACKWARD FORWARD TURBO SC NC SO VDD PC OSCO OSCI FOSC LEFT Description The rightward function will be selected, if this pin is connected to GND test pin Negative power supply The backward function will be selected, if this pin is connected to GND The forward function will be selected, if this pin is connected to GND The turbo function will be selected if this pin is connected to GND Output pin of the encoding signal with carrier frequency Not connect Output pin of the encoding signal without carrier frequency Positive power supply Power control output pin Oscillator output pin Oscillator input pin Oscillate frequency output The leftward function will be selected, if this pin is connected to GND HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 3 of 13 TX-2B/RX-2C 2. RX-2C Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VO2 GND SI OSCI OSCO RIGHT LEFT LX MOD BACKWARD FORWARD TURBO VDD VI1 VO1 VI2 Negative power supply Input pin of the encoding signal Oscillator input pin Oscillator output pin Rightward output pin Leftward output pin DC-DC output pin Output pin (pull up) to decide the format of output sign, RX-2C is same with RX2 if the pin is high, and if the pin is low, RX-2C output another sign format. Backward output pin Forward output pin TURBO output pin Positive power supply Inverter 1 input pin for power amplify Inverter 1 output pin for power amplify Inverter 2 input pin for power amplify Description Inverter 2 output pin for power amplify FUNCTION DESCRIPTION CODE FORMAT 1. ENCODE RULE (A).Bit Forma (W1 is used for function codes, W2 for start codes) 1KHz W1 1KHz 50% Duty cycle W2 500Hz 75% Duty cycle (B).DATE FORMAT W2 W2 W2 W2 (n) X W1 W2 W2 W2 W2 (n) X W1 W2 W2 W2 W2 W2 W2 W2 W2 1 W1 2 W1 3 W1 4 W1 W1 n-th W2 W2 W2 W2 W1 1 2 start code 3 4 function code 1 word n x W1 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 4 of 13 TX-2B/RX-2C Number Of Function Code (N) W1 4 10 16 22 28 34 40 46 52 58 64 2. ENCODE/DECODE TIMING (A) Forward Forward & Turbo Turbo Turbo & Forward & Left Turbo & Forward & Right Backward Backward & Right Backward & Left Left Right Function Key Decode Result End Code Forward Forward Turbo Forward & Left Forward & Right Backward Backward & Right Backward & Left Left Right Any function key Encode output 1st word 2nd word 3rd word 1 2 3 4 5 6 7 8 end code Decode output 9ms 9ms (B) SI 8ms (n) W1 8ms 1ms Decode output T T=17ms+(nW1)x1ms FUNCTION Function key（TX-2B） forward Forward and turbo turbo Forward and turbo and left ① command（RX-2C,MOD=1） Over code forward forward turbo Forward and left ② Command(RX-2C,MOD=0) Over code ③ Forward pulse（50Hz 50%Duty） Forward and turbo Forward and turbo Forward and left Forward pulse（50Hz 50%Duty） (To be continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 5 of 13 TX-2B/RX-2C (Continued) Function key（TX-2B） ① command（RX-2C,MOD=1） Forward and right Backward Backward and right Backward and left Left Right ② Command(RX-2C,MOD=0) Forward and right ③ Forward and turbo and right Backward Backward and right Backward and left Left Right Forward pulse (50Hz 50%Duty) Backward Backward pulse（50Hz 50%Duty） Backward and right Backward pulse（50Hz 50%Duty） Backward and left Backward pulse（50Hz 50%Duty） Left Right Note: when a key is low voltage, it is an input key. ②,③ high voltage format is used when there is no output format. TEST CIRCUIT The oscillator frequency of TX-2B and RX-2C is 116 ~140 kHz TYPICAL APPLICATION CIRCUIT Transmitter (TX-2B Fosc=116~140kHz) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 100μF REV:1.1 2008.06.12 Page 6 of 13 TX-2B/RX-2C RECEIVER I (RX-2C FOSC=128 kHz) Note:1. MOD=1(MOD pin opens) 2. No using DC-DC converter because of higher supply voltage 3. Two grade shift gears are realized. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 7 of 13 TX-2B/RX-2C RECEIVER II (RX-2C FOSC=116~140 kHz) Note:1. MOD=0(pulled low) 2. Using DC-DC converter because of low supply voltage 3. Two grade shift gears are realized. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 8 of 13 TX-2B/RX-2C INFRARED APPLICATION CIRCUIT Transmitter (TX-2B Fosc=114 kHz) Receiver (RX-2C Fosc=114 kHz) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 9 of 13 TX-2B/RX-2C PACKAGE OUTLINE DIP-14-300-2.54 UNIT: mm 2.54 1.52 19.55±0.3 15 degree 0.5MIN 0.46 2.40MAX SOP-14-225-1.27 1.80MAX UNIT: mm 6.0±0.4 3.9±0.2 0.10～0.20 5.72 0～7 ° + 0.05 0.20 - 0.02 1.27 8.81 ± 0.20 0.40 7.62 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 0.60 ± 0.20 2008.06.12 Page 10 of 13 TX-2B/RX-2C PACKAGE OUTLINE (continued) DIP-16-300-2.54 UNIT: mm SOP-16-225-1.27 UNIT: mm HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 11 of 13 TX-2B/RX-2C MOS DEVICES OPERATE NOTES: Electrostatic charges may exist in many things. Please take following preventive measures to prevent effectively the MOS electric circuit as a result of the damage which is caused by discharge: The operator must put on wrist strap which should be earthed to against electrostatic. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed in antistatic/conductive containers for transportation. Note：Silan reserves the right to make changes without notice in this specification for the improvement of the design and performance. Silan will supply the best possible product for customers. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2008.06.12 Page 12 of 13