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REMOTE CONTROLLER WITH FIVE FUNCTIONS

TX-2B / RX-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
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
12 Oscillator 11 Timing Generator
RIGHT
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
Silan Semiconductors
BLOCK DIAGRAM
TX-2B / RX-2B
Oscillator
Timing Generator
13 VDD
PLA AMP Decoding Circuit Computer
VO1 VI1 LDB
Control Logic
6 RIGHT 7 LEFT
Latch Circuit
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
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
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
ELECTRICAL CHARACTERISTICS
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
Operating Voltage Operating Current O / P Driving Current O / P Sinking Current Effect Decoding Frequency Variation
Symbol
VDD IDD Idrive Isink Ftolerance
PIN DESCRIPTION
1. TX-2B
Pin No.
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
Silan Semiconductors
(Continued)
TX-2B / RX-2B
Description
Pin No.
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.
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
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
(B).Date Format
W1 W1 n-th
start code
function code 1 word
Number Of Function Code (N) W1
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
Silan Semiconductors
2. ENCODE / DECODE TIMING
TX-2B / RX-2B
Any function key Encode output
1st word
2nd word
3rd word
end code
Decode output
SI 8ms (n) W1 8ms 1ms
Decode output
TESTING CIRCUIT
(The oscillator frequency of TX-2B, RX-2B is 128KHz, the oscillator resistor is 160K and 250K respectively)
TX-2B
1 2 3 4 backward 5 forward 6 turbo 7 1 2 3
RX-2B
right
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
Silan Semiconductors
TYPICAL APPLICATION CIRCUIT
TRANSMITTER
TX-2B / RX-2B
TX-2B
1 2 3 backward 4 forward 5 6 turbo 7
RECEIVER
right
VCC R.F. CIRCUIT
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
R.F. SI CIRCUIT
power switch 14 13 12 11 10 9
RX-2B
Silan Semiconductors
INFRARED APPLICATION CIRCUIT
TRANSMITTER
DC:3V F
TX-2B / RX-2B
8 Photo Diode
TX-2B
1 2 3 Backw ard 4 5 Frontwar d 6 7
Turbo
RECEIVER
RX-2B
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
DC:5V
Right
C8050
VDD IR Receiver OUT
Silan Semiconductors
RECOMMENDED APPLICATION CIRCUIT
TX-2B / RX-2B
TX-2B
TURBO
7T 0.3mm ( ) x 5mm(Core)
Q1 C945 203P 3.0V
C2 47P
C3 18P
C1 102P
C4 203P
104P 3.3k
3.9MO 203P
RX-2B
right
turbo
forward
backward
R3 Q7 Q8 R4 C945 Q10
C945 Q9
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
104P VDD2
R1 C945 C945
Q5 473P Q6
7T 0.3mm ( ) x 5mm(Core)
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
Q2 C945
XTAL 27MHz
L1 2.2 H 47P L2 2.2 H L4 6.8 H
Silan Semiconductors
PACKAGE OUTLINE
TX-2B / RX-2B
UNIT: mm
DIP-14-300-2.54
0.5MIN
DIP-16-300-2.54
15 degree
0.5MIN
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
Rev: 1.0 2002.03.29
1.27MAX
3.00MIN
4.36MAX
2.40MAX
3.00MIN
4.36MAX
15 degree
UNIT: mm