Datasheet RX-5B Datasheet (SILAN)

Silan

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REMOTE CONTROLLER WITH SEVEN
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-

housed in DIP-22 package.

FEATURES

* Wide operating voltage range

TX-5B: (V
RX-5B: (V

=2.2~12.0V)

DD

=3.0~12.0V)

DD

* 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

PIN CONFIGURATION

Bis

TX-5B/RX-5B

DIP-16

DIP-22

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ORDERING INFORMATION

Part No. Package

TX-5B/RX-5B

DIP-16-300-2.54
DIP-22-400-2.54

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RIGHT

TEST

GND

BACKWARD

FORWARD

TURBO

F34

VO2

1

GND

1
2
3
4
5

TX-5B

6

SC

7
8

LEFT

16

F1

15

OSCI

14

OSCO

13

PC

12

VDD

11

SO

10

F2

9

2

SI

3

OSCI

4

OSCO

5

F1

RIGHT

F2

LEFT

V

T

RDB LDB

RX-5B

6
7
8

9
10
11

22
21
20
19
18
17
16
15
14
13
12

VI2

VO1

VI1

VDD

TURBO

F3

FORWAR

F4

BACKWAR

LRTD

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.0 2002.03.26

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BLOCK DIAGRAM

OSCI

OSCO

RIGHT

LEFT

TURBO

FORWARD

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TEST

2

14

13

1

16

6

5

Oscillator

Latch

Circuit

Timing

Generator

Encoding

Circuit

TX-5B/RX-5B

11

V

DD

12

PC

10

Logic

SO

7

SC

BACKWARD

4

F1 F2

F34

3815 9

GND

TX-5B Block Diagram

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OSCI

OSCO

VO1

LDB

LRTD

RDB

VT

VO2

4

5

SI

3

21

VI1

20

12
13
11
10

VI2

22

1

Oscillator

AMP

Control

Logic

Timing

Generator

Decoding

Circuit

GND

Counter

PLA

Latch

Circuit

2

V

19

7

9
18
14
16

6

8
17
15

DD

RIGHT
LEFT

TURBO

BACKWARD
FORWARD

F1
F2

F3
F4

RX-5B Block Diagram

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Rev: 2.0 2002.03.26

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ABSOLUTE MAXIMUM RATINGS

Characteristic Symbol Value Unit

DC Supply Voltage V
Input/Output Voltage VIN,V
Operating Temperature Topr -10 ~ +60
Storage Temperature Tstg -25~+125

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.

DD

OUT

ELECTRICAL CHARACTERISTICS
TX-5B

(VDD=9V,Fosc=128KHz, Tamb=25°C,unless otherwise specified.)

Parameter Symbol Min Typ Max Unit

Operating Voltage V
Operating Current I

Stand-By Current I

DC O/P Driving Current(RF) Idrive -- 10.0 -- mA

AC O/P Driving Current(IR) Idrive -- 6.0 -- mA

AC O/P Frequency Faudio -- 500 -- Hz

DD

DD

STB

2.2 9.0 12.0 V

-- -- 1.5 mA

-- 1.0 1000

RX-5B

(VDD=9V,Fosc=128KHz, Tamb=25°C,unless otherwise specified.)

Parameter Symbol Min Typ Max Unit

Operating Voltage V
Operating Current I

O/P Driving Current Idrive 5.0 -- -- mA

O/P Driving Current(F1,F2) Idf 5.0 -- -- mA

Effect Decoding Frequency Variation Ftolerance -50% -- 50% --

DD

DD

3.0 9.0 12.0 V

-- 30.0 -- mA

PIN DESCRIPTION
TX-5B

Pin No. Symbol Description

1 RIGHT The rightward function will be selected when this pin is connected to GND
2 TEST This pin is used for testing mode
3 GND Negative power supply

TX-5B/RX-5B

0.3 ~ 5.0 V

GND-0.2V ~ VDD+0.2V V

°C
°C

µA

(To be continued)

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.0 2002.03.26

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(Continued)

Pin No. Symbol Description

4 BACKWARD The backward function will be selected when this pin is connected to GND
5 FORWARD The forward function will be selected when this pin is connected to GND
6 TURBO The turbo function will be selected, if this pin is connected to GND
7 SC Output pin of the encoding signal with carrier frequency
8 F34 F3 and F4 function select (sequential trigger)

9 F2 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 F1 F1 function select
16 LEFT The leftward function will be selected when this pin is connected to GND

RX-5B

Pin No. Symbol Description

1 VO2 Inverter 2 output pin for signal amplify

2 GND Negative power supply

3 SI Input pin of the encoding signal

4 OSCI Oscillator input pin

5 OSCO Oscillator output pin

6,8,17,15 F1, F2,F3,F4 F1,F2,F3,F4 function output pin

7 RIGHT Rightward output pin

9 LEFT Leftwardoutput pin
10 V
11 RDB Right disable pin.

12 LDB Left disable pin.
13 LRTD Left/right turbo disable pin
14 BACKWARD Backward output pin
16 FORWARD Forward output pin
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

T

Auto Shut-OFF input pin.

voltage exceeds 1.4V, all outputs shut off automatically.

If V

T

TX-5B/RX-5B

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Rev: 2.0 2002.03.26

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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"

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

startcode=F1F1F1F1F0

data code =

F B T R L F1F3F4F2

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F = Forward B = Backward T = Turbo R = Right L = Left
F1 = Function1 F2 = Function2 F3 = Function3 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 H
LEFT+FORWARD H H
RIGHT+FORWARD H H
TURBO H
TURBO+FORWARD H H
TURBO+LEFT+ FORWARD H H H
TURBO+RIGHT+FORWARD H H H

FBTRLF1F2F3F4

Output Status

TX-5B/RX-5B

500Hz, 1/4 duty

(To be continued)

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.0 2002.03.26

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(Continued)

Function

BACKWARD H H
BACKWARD+RIGHT H H
BACKWARD+LEFT H
TURBO+BACKWARD H H H
TRUBO+BACKWARD+RIGHT H H H
TURBO+BACKWARD +LEFT H H
LEFT H
RIGHT H
FUNCTION1 H
FORWARD+FUNCTION1 H H
FORWARD+TURBO+FUNC1 H H H
TURBO+FUNC1 H H
BACKWARD+FUNC1 H H
BACKWARD+TURBO+FUNC1 H H H
LEFT+FORWARD+FUNC1 H H H
RIGHT+FORWARD+FUNC1 H H H
LEFT+ BACKWARD +FUNC1 H H H
RIGHT+ BACKWARD +FUNC1 H H H
LEFT+FUNCTION1 H H
RIGHT+FUNCTION1 H H

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.
(3) LRTD pin functions as an option pin for LEFT/RIGHT turbo disable. Please refer to the following table.

"LRTD" Key Selected Output Function

HIGH (OPEN) FORWARD+LEFT (RIGHT)+ TURBO FORWARD+LEFT (RIGHT)+ TURBO

LOW FORWARD+LEFT (RIGHT)+ TURBO FORWARD+LEFT (RIGHT)

FBTRLF1F2F3F4

Output Status

TX-5B/RX-5B

TESTING CIRCUIT

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

(Fosc for RX-5B ≈128KHz, Fosc for TX-5B ≈128KHz)

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Rev: 2.0 2002.03.26

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TX-5B/RX-5B

R.F.

fosc=128KHz

75K

¡

Transmitter

10 916 15 14 13 12 11

F2SOV

DD

GND

TX-5B

BACK­WARD

BACKWARDB

PCOSCOOSCI

FOR-

WARD

TURBO SC F34

TURBOB

FORWARDB

F34B

F2B

6V

F

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100

F1LEFT

RIGHT TEST

1 2 3 4 5 6 7 8

F1B

LEFTB

RIGHTB

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.

V

DD

11

VDD

TX-5B

VDD

10

SO

3

15
VDD

SI

RX-5B

22 21 20

19 18

TURBOV

VI1VO1VI2

DD

RX-5B

VO2 GND SI

1 2 3

R.F.

Receiver

OSCI OSCO F1 RIGHT F2 LEFT VT

4 5 6 7 8 9

110K

TX-5B F34 is sequential trigger pin, it controls

F3&F4 output at the receiver.

34B

(TXInput)

F3

(RX Output)

F4

(RX Output)

F3

FORWARD

TURBO

FOR-

WARD

¡

F1 F2RIGHT LEFT

10F

IN4148

1M

R6

M

V

DD

¡

1

¡

F4

BACKWARD

1217 16 15 14 13

BACK-

LRTD

LDBF4F3

WARD

RDB

10 11

connect directly

RX-5B R6, INDEX

VDD R6

12

9
6

270Ω
180Ω

68Ω

TYPICAL APPLICATION CIRCUIT

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.0 2002.03.26

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Transmitter

(TX-5B Fosc≈128KHz)

RL

LEFT

RIGHT

1

TEST

2

B

3

BACK-

4

WARD

F
T

FOR-

5

WARD

TURBO

6

SC

7

F34 F2

8

TX-5B

OSCIGND

OSCO

16

F1

15
14
13

PC

12

V

DD

11

SO

10

9

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9V

TX-5B/RX-5B

AMP

L2

C8

L3

47pF

T2

C6

R6

100Ω

0.02µF

C9

C10

100pF

10pF

C7

50KΩ

R7

0.02µF

L1

C3

R2

R1

120KΩ

330Ω

33 µF

6.8KΩ

R4

C2

27.145MHz

CRYSTAL

T1

100Ω

R3

VR1

100KΩ

C1

0.02µF

C4

47pF

47pF

R5

C5

33KΩ

47pF

Receiver

(RX-5B Fosc≈128KHz)

L2

R3

¡

1.2K

C6

C5

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F

0.002

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F

3.3

47pF

C3

C1

10pF

T1

L1

C2

15pF

R1

¡

5.6K

R2

C4

3.3K

¡

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F

0.01

PACKAGE OUTLINE

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

R4

¡

3.3K

C10

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F

0.1
330

R9

¡

3.3K

R10

¡

3.9M

VO2 GND SI OSCI OSCO F1

R13

¡

3.3K

R5

¡

100

C7

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F

47

R8

¡

3.9M

R7

¡

C11

C12

0.01
500pF

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F

VI1VO1VI2

21 43 5

C13

0.002

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F

47

1920 1822 21

DD

TURBOV

R14 110K

fosc=128KHz

R6

¡

270

C8

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F

17 16

FOR-

WARD

RX-5B

RIGHT F2 LEFT RDB

6 7

¡

8

C9

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F

220

15 1214 13

BACK­WARD

C14

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F

10

D1 IN4148

R12 330

R11 330

LRTD

VT

R18 330

R17 330

D2 IN4148

C15

100



F

SW

R20

T7

100

¡

¡

¡

LDBF4F3

R19

220

118 109

¡

¡

R15

R16

¡

1M

1

¡

T6

R21

330

¡

T8

¡

T3

T2 T5

MOTOR

C17 0.1

MOTOR

M1

M2

R22

T9

¡

100

T10

T11

R23

¡

330

R24

¡

(1W)

10

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R25

T4

¡

220

Rev: 2.0 2002.03.26

12V

0V

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DIP-16-300-2.54 UNIT:mm

2.54

0.25

B

6.35

TX-5B/RX-5B

0.05

B

7.62

0.25

0.5MIN

0.99B0.3

DIP-22-400-2.54

9.12

0.5MIN

19.55B0.3

0.46B0.08

27.8B0.2

1.52

2.54

1.5MAX

4.36MAX3.00MIN

1.27MAX

15 degree

UNIT:mm

0.05

B

0.25

10.16

15 degree

5.1MAX3.5

0.3

B

0.45B0.1

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

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Attach

Semiconductors

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TX-5B/RX-5B

Revision History

Data REV Description Page

2000.12.31 1.0 Original
Add the “ORDERING INFORMATION “
Delete the “1.TURBO FUNCTION “in the “FUNCTION DESCRIPTION”
Modify the “OUTPUT TABLES”

2002.03.26 2.0

Modify the “TESTING CIRCUIT”
Modify the “Receive (RX-5B Fosc ≈ 128KHz)” in the “TYPICAL
APPLICATION CIRCUIT”
Modify the “PACKAGE OUTLINE”

1
5

5-6

7
8

9

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.0 2002.03.26

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