TX-2B

Silan Semiconductors REMOTE CONTROLLER WITH FIVE FUNCTIONS DESCRIPTION The TX-2B/RX-2B is a pair of CMOS LSIs designed for remote controlled car applications. The TX-2B/RX-2B has five control keys for controlling the motions (i.e. forward, backward, rightward, leftward and the turbo function ) of the remote controlled car. TX-2B/RX-2B DIP-14 TX-2B FEATURES * Wide operating voltage range (VCC=1.5~5.0V) * Low stand-by current * Auto-power-off function for TX-2B * Few external components are needed RX-2B DIP-16 ORDERING INFORMATION Part No. TX-2B RX-2B Package DIP-14-300-2.54 DIP-16-300-2.54 BLOCK DIAGRAM FOSC TEST B 13 OSCI 2 12 Oscillator 11 Timing Generator OSCO RIGHT 1 14 6 5 4 3 GND 9 VDD LEFT 10 PC Latch Circuit Encoding Circuit Logic 8 SO 7 SC TURBO FORWARD BACKWARD TRANSMITTER TX-2B Block Diagram HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 1 Silan Semiconductors BLOCK DIAGRAM OSCI TX-2B/RX-2B 4 Oscillator Timing Generator 13 VDD OSCO 5 3 15 PLA AMP Decoding Circuit Computer SI VO1 VI1 LDB 14 9 Control Logic 6 RIGHT 7 LEFT Latch Circuit RDB 8 16 1 2 GND 12 TURBO 10 BACKWARD 11 FORWARD VI2 VO2 RECEIVER RX-2B Block Diagram PIN CONFIGURATION RIGHT TEST GND ACKWARD FORWARD TURBO SC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 LEFT FOSC OSCI OSCO PC VDD SO VO2 GND SI OSCI OSCO RIGHT LEFT ROB 1 2 3 4 5 6 7 8 16 15 14 VI2 VO1 VI1 VDD TURBO FORWARD BACKWARD LDB TX-2B RX-2B 13 12 11 10 9 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 2 Silan Semiconductors ABSOLUTE MAXIMUM RATINGS Characteristic Supply Voltage Input / Output Voltage Operating Temperature Storage Temperature TX-2B/RX-2B Symbol VDD VIN, VOUT TOPR Tstg Value 0.3~5.0 GND-0.3~VDD+0.3 -10~65 -25~125 Unit V V °C °C ELECTRICAL CHARACTERISTICS 1. TX-2B (VDD=4.0V, Fosc=128KHz, Tamb =25°C, unless otherwise specified.) Characteristic Operating Voltage Operating Current Stand-By Current DC O/P Driving Current AC O/P Driving Current AC O/P Frequency Symbol VDD IDD ISTB Idrive Idrive Faudio Min 1.5 --5 5 0.5 Typ 4.0 ------ Max 5.0 2.0 10 --1.0 Unit V mA µA mA mA kHz 2. RX-2B (VDD=4.0V,Fosc=128KHz, Tamb=25°C, unless otherwise specified.) characteristic Operating Voltage Operating Current O/P Driving Current O/P Sinking Current Effect Decoding Frequency Variation Symbol VDD IDD Idrive Isink Ftolerance Min 1.5 -1 1 -20 Typ 4.0 ----- Max 5.0 3.0 --20 Unit V mA mA mA % PIN DESCRIPTION 1. TX-2B Pin No. 1 2 3 4 5 Symbol RIGHT TEST GND BACKWARD FORWARD Description The rightward function will be selected, if this pin is connected to GND This pin is used for testing mode 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 (To be continued) HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 3 Silan Semiconductors (Continued) TX-2B/RX-2B Description Pin No. 6 7 8 9 10 11 12 13 14 Symbol TURBO SC SO VDD PC OSCO OSCI FOSC LEFT The turbo function will be selected if this pin is connected to GND Output pin of the encoding signal with carrier frequency Output pin of the encoding signal without carrier frequency Positive power supply Power control output pin Oscillator output pin Oscillator input pin This pin is used for testing mode The leftward function will be selected, if this pin is connected to GND 2. RX-2B 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 ROB LDB 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 Description Inverter 2 output pin for power amplify Rightward function disable, if this pin is connected to GND Leftward function disable, if this pin is connected to GND 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 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 4 Silan Semiconductors CODE FORMAT 1. ENCODE RULE (A).Bit Format (W1 is used for function codes,W2 for start codes) 1KHz W1 TX-2B/RX-2B 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 n x W1 function code 1 word Number Of Function Code (N) W1 4 10 16 22 28 34 40 46 52 58 64 Function Key Forward Forward & Turbo Turbo Turbo & Forward & Left Turbo & Forward & Right Backward Backward & Right Backward & Left Left Right Decode Result End Code Forward Forward Turbo Forward & Left Forward & Right Backward Backward & Right Backward & Left Left Right HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 5 Silan Semiconductors 2. ENCODE/DECODE TIMING TX-2B/RX-2B 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 SI 8ms (n) W1 8ms 1ms Decode output T T=17ms+(nW1)x1ms TESTING CIRCUIT (The oscillator frequency of TX-2B, RX-2B is 128KHz, the oscillator resistor is 160KΩ and 250KΩ respectively) forward turbo fosc=128kHz backward 12 11 10 9 5 6 7 8 right VCC=3V 14 F 13 12 11 10 9 8 16 15 14 13 100 TX-2B 1 2 3 4 backward 5 forward 6 turbo 7 1 2 3 RX-2B 4 right left fosc=128kHz HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 6 left ­ Silan Semiconductors TYPICAL APPLICATION CIRCUIT TRANSMITTER TX-2B/RX-2B VCC 14 13 12 11 TX-2B 1 2 3 backward 4 forward 5 6 turbo 7 RECEIVER left right 16 15 VCC R.F. CIRCUIT GND HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 7 ¡ ­ 100 F 4.3V 1 2 3 ¡ 10 9 8 Rosc=500k R.F. SI CIRCUIT power switch 14 13 12 11 10 9 RX-2B 4 5 6 7 8 500k Silan Semiconductors INFRARED APPLICATION CIRCUIT TRANSMITTER DC:3V F TX-2B/RX-2B 14 13 12 11 10 9 8 Photo Diode TX-2B 1 2 3 Backw ard 4 5 Frontwar d 6 7 Turbo RECEIVER RX-2B 1 2 3 4 5 6 7 8 1815 F 100 fosc=114KHz GND HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 8 ¡ DC:5V 16 15 Right Left C8050 14 13 12 11 10 9 100K 1~4.7 ¡ VDD IR Receiver OUT ­ fosc=114kHz 100 ­ Silan Semiconductors RECOMMENDED APPLICATION CIRCUIT R L TX-2B/RX-2B VDD=9V LED 1 2 3 B 14 13 Rosc=160K 220k 4 F TX-2B 11 10 151P L3 5 TURBO 7T 0.3mm ( ) x 5mm(Core) Q1 C945 203P 3.0V 68P 151P 7 8 C2 47P 47 C3 18P L2 Q1 C1 102P C4 203P F 104P 3.3k 3.9MO 203P 3.3k 2 3 15 14 13 222P 3.9M Rosc=250K RX-2B 5 right 12 11 10 9 turbo 6 7 8 forward left backward R3 Q7 Q8 R4 C945 Q10 C945 Q9 M 473P HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 9 ¡ ¡ 1k ¡ 4 ¡ 501P ¡ 390 ¡ 1 16 ¡ 330 ¡ 103P ­ 220 F /16V 470 F /16V 4.7 Q3 100 F /16V 820 104P VDD2 R2 1k R1 C945 C945 Q2 Q4 1k M Q5 473P Q6 C945 1kO R1,R2,R3,R4=80~150 ,are changeable with the VDD1 and VDD2. ­ ­ ¡ ¡ ¡ 180k 3.3k 3.0V ¡ ¡ 7T 0.3mm ( ) x 5mm(Core) VDD1=12V,R=330 VDD1=9V,R=220 1N4148 Q1: C9018,C1815,C380,C382 Q2,Q3,Q4: 5610,C8550,B772 Q5,Q6: C8050,5609,D882 Q7,Q8: B564,C8550,B772 Q9,Q10: D471,C8050,D882 L1 1.1 F 4P 203P 33K 100 R2 1k 103P VDD1 ¡ ¡ ¡ 68P F 100 6 9 Q2 C945 ¶ ­ XTAL 27MHz ­ ­ ¡¡ 203P 390 12 ¡ L1 2.2 H 47P L2 2.2 H L4 6.8 H 1.5k ¶ ­ ­ ¡ ­ ¡ Silan Semiconductors PACKAGE OUTLINE TX-2B/RX-2B UNIT: mm 2.54 0.05 DIP-14-300-2.54 6.35 1.52 7.62 0.5MIN DIP-16-300-2.54 2.54 0.25 6.35 19.55 0.3 1.52 7.62 15 degree 0.5MIN HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2002.03.29 B B 0.99 0.3 0.46 0.08 1.27MAX 10 3.00MIN 4.36MAX 0.25 B 0.05 B B 0.46 0.08 2.40MAX 3.00MIN 4.36MAX B 19.55 0.3 15 degree 0.25 B UNIT: mm B B 0.25