TX-5B

TX-5B/RX-5B TOY CAR REMOTE CONTROLLER WITH NINE FUNCTIONS DESCRIPTION The TX-5B/RX-5B are a pair of CMOS LSIs designed for remote controlled car applications. They have nine control keys controlling the motions (i.e. forward, backward, rightward, leftward, trigger 1-trigger 4 functions and the turbo function) of the remote controlled car. The TX-5B is housed in DIP-16 package, and the RX-5B is housed in DIP-22 package. DIP-22 DIP-16 FEATURES * Wide operating voltage range TX-5B: (VDD=2.2~12.0V) RX-5B: (VDD=3.0~12.0V) * Very Low stand-by current for TX-5B * Auto-power-off function for TX-5B * Few external components are needed * Built-in 3.6V zener for RX-5B * 9 functions remote controller controlling: forward, backward, right, left, turbo, trigger 1-- trigger 4 functions TX-5B/RX-5B SDIP-22 ORDERING INFORMATION Device Package DIP-16-300-2.54 DIP-22-400-2.54 SDIP-22-300-2.54 BLOCK DIAGRAM TEST 2 OSCI 14 Oscillator 13 Timing Generator OSCO 11 VDD RIGHT 1 16 6 5 4 Latch Circuit Encoding Circuit Logic LEFT 12 PC 10 SO 7 SC TURBO FORWARD BACKWARD 15 F1 9 F2 8 F34 3 GND TX-5B Block Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 1 of 10 TX-5B/RX-5B BLOCK DIAGRAM (continued) OSCI 4 Oscillator Timing Generator Counter 19 VDD OSCO 5 3 21 20 12 13 11 10 22 1 2 GND Control Logic Latch Circuit AMP Decoding Circuit SI VO1 VI1 PLA 7 RIGHT 9 LEFT LDB LRTD RDB VT 18 TURBO 14 BACKWARD 16 FORWARD 6 8 F1 F2 VI2 VO2 17 F3 15 F4 RX-5B Block Diagram ABSOLUTE MAXIMUM RATINGS Characteristics DC Supply Voltage Input/Output Voltage Operating Temperature Storage Temperature COMMENT Never allow a stress to exceed the values listed under "Absolute Maximum Ratings", otherwise the device would suffer from a permanent damage. Nor is a stress at the listed value be allowed to persist over a period, since an extended exposure to the absolute maximum rating condition may also affect the reliability of the device, if not causing a damage thereof. Symbol VDD VIN,VOUT Topr Tstg Value 0.3 ~ 5.0 GND-0.2V ~ VDD+0.2V -10 ~ +60 -25~+125 Unit V V °C °C ELECTRICAL CHARACTERISTICS TX-5B (VDD=9V, Fosc=128KHz, Tamb=25°C, unless otherwise specified.) Characteristics Operating Voltage Operating Current Stand-By Current DC O/P Driving Current(RF) AC O/P Driving Current(IR) AC O/P Frequency Symbol VDD IDD ISTB Idrive Idrive Faudio Min. 2.2 -----Typ. 9.0 -1.0 10.0 6.0 500 Max. 12.0 1.5 1000 ---Unit V mA µA mA mA Hz HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 2 of 10 TX-5B/RX-5B RX-5B (VDD=9V, Fosc=128KHz, Tamb=25°C, unless otherwise specified.) Characteristics Operating Voltage Operating Current O/P Driving Current O/P Driving Current(F1,F2) Effect Decoding Frequency Variation Symbol VDD IDD Idrive Idf Ftolerance Min. 3.0 -5.0 5.0 -50% Typ. 9.0 30.0 ---Max. 12.0 ---50% Unit V mA mA mA -- PIN CONFIGURATION PIN DESCRIPTION TX-5B Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol RIGHT TEST GND BACKWARD FORWARD TURBO SC F34 F2 SO VDD PC OSCO OSCI F1 LEFT This pin is used for testing mode Negative power supply The backward function will be selected when this pin is connected to GND The forward function will be selected when 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 F3 and F4 function select (sequential trigger) F2 function select Output pin of the encoding signal without carrier frequency Positive power supply Power control output pin Oscillator output pin Oscillator input pin F1 function select The leftward function will be selected when this pin is connected to GND Description The rightward function will be selected when this pin is connected to GND HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 3 of 10 TX-5B/RX-5B RX-5B Pin No. 1 2 3 4 5 6,8,17,15 7 9 10 11 12 13 14 16 18 19 20 21 22 Symbol VO2 GND SI OSCI OSCO F1, F2,F3,F4 RIGHT LEFT VT RDB LDB LRTD BACKWARD FORWARD TURBO VDD VI1 VO1 VI2 Negative power supply Input pin of the encoding signal Oscillator input pin Oscillator output pin F1,F2,F3,F4 function output pin Rightward output pin Leftward output pin Auto Shut-OFF input pin. If VT voltage exceeds 1.4V, all outputs shut off automatically. Right disable pin. Left disable pin. Left/right turbo disable pin Backward output pin Forward output pin TURBO output pin Positive power supply Inverter 1 input pin for signal amplify Inverter 1 output pin for signal amplify Inverter 2 input pin for signal amplify Description Inverter 2 output pin for signal amplify FUNCTION DESCRIPTION The TX-5B/RX-5B are a pair of CMOS LSIs designed for remote controlled car applications. The TX-5B/RX-5B have nine control keys controlling the motions (i.e. forward, backward, rightward, leftward, and trigger1--trigger4 functions and the turbo function) of the remote controlled car. 1. OVER-CURRENT PROTECTION 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) 2. DATA FORMAT F1="1" 500Hz, 3/4 duty F0="0" 500Hz, 1/4 duty 3. CODING METHOD 3.1 When a trigger pin is triggered, its data code will correspond to the data format of "F1", while the remaining pins will have the data format of "F0". 3.2. Data string: start code + data code +parity code + end code Start code = F1 F1 F1 F1 F0 Data code = HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 4 of 10 TX-5B/RX-5B F F = Forward F1 = Function1 B T R L F1 F3 F4 F2 L = Left B = Backward F2 = Function2 T = Turbo F3 = Function3 R = Right F4 = Function4 Parity code = for parity check End code = for (latch data) * Data code can be any combination of F,B,T,R,L,F1,F2,F3,F4 except for F&B, R&L, F3&F4. OUTPUT TABLES Function FORWARD LEFT+FORWARD RIGHT+FORWARD TURBO TURBO+FORWARD TURBO+LEFT+ FORWARD TURBO+RIGHT+FORWARD BACKWARD BACKWARD+RIGHT BACKWARD+LEFT TURBO+BACKWARD TRUBO+BACKWARD+RIGHT TURBO+BACKWARD +LEFT LEFT RIGHT FUNCTION1 FORWARD+FUNCTION1 FORWARD+TURBO+FUNC1 TURBO+FUNC1 BACKWARD+FUNC1 BACKWARD+TURBO+FUNC1 LEFT+FORWARD+FUNC1 RIGHT+FORWARD+FUNC1 LEFT+ BACKWARD +FUNC1 RIGHT+ BACKWARD +FUNC1 LEFT+FUNCTION1 RIGHT+FUNCTION1 H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H Output Status F H H H H H H H H H H H H B T R L F1 F2 F3 F4 Note: (1) In the table, blank=F0. Rows from "FUNCTION1" to "RIGHT+FUNCTION1" (the last row) are similar for FUNCTION2, FUNCTION2, FUNCTION2. Thus, we can see from the table that we have more than 50 states of function combinations from 8 control keys. (2) H = high level. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 5 of 10 TX-5B/RX-5B (3) LRTD pin functions as an option pin for LEFT/RIGHT turbo disable. Please refer to the following table. "LRTD" HIGH (OPEN) LOW Key Selected FORWARD+LEFT (RIGHT)+ TURBO FORWARD+LEFT (RIGHT)+ TURBO Output Function FORWARD+LEFT (RIGHT)+ TURBO FORWARD+LEFT (RIGHT) TESTING CIRCUIT (Fosc for RX-5B ≈128KHz, Fosc for TX-5B ≈128KHz) TX-5B output pin (SO) has an inverted phase with RX-5B input (SI). If TX-5B&RX-5B are connected without using a RF module, an inverter has to be inserted between these 2 pins, as shown below. VDD TX-5B F34 is sequential trigger pin, it controls F3&F4 output at the receiver. F34B (TX Input) 11 VDD SO 10 VDD 3 15 VDD SI F3 (RX Output) TX-5B RX-5B F4 (RX Output) connect directly RX-5B R6, INDEX VDD 12 9 6 R6 270Ω 180Ω 68Ω HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 6 of 10 TX-5B/RX-5B TYPICAL APPLICATION CIRCUIT Transmitter (TX-5B Fosc≈128KHz) Receiver (RX-5B Fosc≈128KHz) R4 3.3K R5 100 C7 47 F C1 10pF L1 C10 0.1 F R9 3.3K R7 330 C11 0.01 C12 F 500pF R11 330 R8 3.9M R12 330 T6 T8 R21 330 R20 100 T7 T9 R22 100 T10 C8 47 F R6 270 C9 220 F D1 IN4148 C15 100 F SW C3 47pF L2 T1 C2 15pF R3 1.2K R1 5.6K R2 3.3K M1 MOTOR T11 R23 330 12V C6 0.002 F C5 3.3 F C4 0.01 F R10 3.9M 22 VI2 21 VO1 20 VI1 19 18 17 F3 16 FORWARD 15 F4 14 13 12 VDD TURBO BACK- LRTD LDB WARD R19 220 R24 10 (1W) 0V RX-5B VO2 GND SI OSCI OSCO F1 RIGHT F2 LEFT VT RDB C17 0.1 F T3 T4 1 R13 3.3K 2 3 4 5 6 7 8 9 10 11 R25 220 R18 330 R14 110K fosc=128KHz C13 0.002 F C14 10 F R15 1M R16 1 R17 330 D2 IN4148 T2 M2 MOTOR T5 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 7 of 10 TX-5B/RX-5B PACKAGE OUTLINE DIP-16-300-2.54 UNIT: mm DIP-22-400-2.54 UNIT: mm HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:2.1 2004.08.03 Page 8 of 10 TX-5B/RX-5B PACKAGE OUTLINE (Continued) SDIP-22-300-2.54 UNIT: mm 6.60±0.25 0.51MIN HANDLING MOS DEVICES: Electrostatic charges can exist in many things. All of our MOS devices are internally protected against electrostatic discharge but they can be damaged if the following precautions are not taken: • Persons at a work bench should be earthed via a wrist strap. • Equipment cases should be earthed. • All tools used during assembly, including soldering tools and solder baths, must be earthed. • MOS devices should be packed for dispatch in antistatic/conductive containers. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 3.00MIN 4.36MAX 7.62 REV:2.1 2004.08.03 Page 9 of 10 0.25±0.05