UTCRCT02 [UTC]

Encoder For Remote Controller With Five Functions CMOS IC; 编码器遥控器采用五功能的CMOS IC


型号：	UTCRCT02
厂家：	Unisonic Technologies
描述：	Encoder For Remote Controller With Five Functions CMOS IC 编码器遥控器采用五功能的CMOS IC 遥控编码器遥控器
文件：	总11页 (文件大小：148K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UTCRCT02

CMOS IC

Encoder For Remote Controller

With Five Functions

DESCRIPTION

The chip can be used with the decoder RCR02 to provide a

complete control functions to the remote-controlled toy. The

RCT02 has five input pins corresponding with the five

function buttons i.e, forward, backward, rightward, leftward

and turbo. The encoding circuit in the RCT02 sends digital

codes to the two output pins SO and SC. The digital codes

correspond to the definite function buttons or their

combinations. The SO and SC outputs are used in wireless

and infra-red applications respectively.

There is an internal oscillator in the RCT02. By adding an

external resistor conveniently, the oscillator will be

constructed. The oscillator frequency can be adjusted by the

external resistor. The relative error between the frequencies

of the two on chip oscillators in the RCT02 and RCR02 must

be less than ±25%.

SOP-14

DIP-14

The auto-power-off function is achieved by an internal

counter. When the RCT02 is powered on, the counter is reset

and begin to count. Any action of push down or release the

function button also reset the counter. The PC pin will keep

on a high level until the counter counts up to about 4 minutes.

The PC output is used to control on/off state of the external

power supply. Pressing OFF button can also shut down the

power supply. Press on any function button will wake up the

chip promptly.

FEATURES

*Five input pins used for five control buttons

*Operating power-supply voltage range: 2.5 to 5.0V

*Auto-power-off if no press on any button in 4 minutes or

continuously press on any button over 4 minues

*Manual-power-on/off with ON/OFF button

*One output pin used for external power control

*Press on any button as wake up

*On-chip oscillator with an external resistor

*Low operating current

*Few external components needed

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

Logic Block Diagram

OFF

OSCI

Timing

Generator

4 Minutes

Counter

Oscillator

OSCO

RIGHTB

LEFTB

TURBOB

Input

Circuit

Encoding

Circuit

Output

Circuit

FORWARDB

BACKWARDB

Product Pin Configuration and Pin Description

LEFTB

OFF

RIGHTB

TESTB

OSCI

GND

BACKWARDB

OSCO

FORWARDB

TURBOB

VDD

Pin No.

Pin Name

RIGHTB

TESTB

GND

Description

The rightward function will be selected, if this pin is connected to GND

This pin is used for testing mode

Negative power supply

BACKWARDB The backward function will be selected, if this pin is connected to GND

FORWARDB The forward function will be selected, if this pin is connected to GND

TURBOB

VDD

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 to shut down the external power supply

The leftward function will be selected, if this pin is connected to GND

OSCO

OSCI

OFF

LEFTB

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

V_IN

VALUE

-0.5 ~ +5.5

500

-10 to +40

-25 to +85

UNIT

DC Input Voltage

Supply Voltage to Ground Potential(Inputs &VDD Only)

Supply Voltage to Ground Potential(Outputs &D/O Only)

DC Output Current

Power Dissipation

Ambient Temperature With Power Applied

Storage Temperature

°C

P_D

T_A

T_STG

°C

DC ELECTRICAL CHARACTERISTICS ^{(Over the operating rating, T}A= -10°C~ +40°C,VDD=4.0V±10%)

PARAMETER

Operating Voltage

Supply Current

Standby Current

Input Current

Input Low Voltage

Output High Voltage

Output High Current

Output Low Voltage

Output Low Current

SYMBOL

TEST CONDITIONS

MIN

2.5

TYP

4.0

MAX UNITS

VDD

IDD

I_STB

I_IN

5.0

300

0.5

µA

Output unloaded

OFF state

Pin 1,4,5,6,14

Guaranteed Logic Low Level

IOUT=1.0mA

VOUT=1.4V

IOUT=150µA

VOUT=0.5V

V_IL

V_OH

I_OH

V_OL

IOL

3.5

-4.0

0.5

150

µA

AC ELECTRICAL CHARACTERISTICS (Over the operating rating, TA= -10°C to +40°C,VDD=4.0V±10%)

PARAMETER

SYMBOL

Fosc

TFUN

TEST CONDITIONS

TA=25°C,R=200KΩ

FOSC=102~ 154KHz

MIN

102

0.8

1.6

TYP

128

MAX UNITS

Oscillator Frequency ^{(Note 1)}

Cycle Time of Function Code

Cycle Time of Start Code

Carrier Frequency of SC Pin

Time of Auto-Power-Off ^{(Note 2)}

154

1.2

2.4

KHz

min.

TSTA

FCSC

TOFF*

3.2

4.8

Note 1: The relative error between the frequencies of the two on-chip oscillators in the RCT02 and RCR02 must be

less than±25%.

Note 2: When adjust the external oscillator resistor, the auto-power-off time will vary relevantly.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

CODE FORMAT ^{(W1 is used for function codes, W2 for start codes)}

W1:1KHz 50% Duty Cycle Typical

W2: 500Hz 75% Duty Cycle Typical

WORD FORMAT

Start Code: 4W2

Function Code: n' W1

1 Word

ENCODING TIMING

W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’ W1 W2 W2 W2 W2 (n)’W1- - - - - - - -

Press any buttons

14 15

Encoding output

1st word 2nd word

Function Codes

last word

End Codes

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

Number of Function Codes (n) W1

Function Buttons

(End Code)

Forward

Forward & Turbo

Turbo

(Turbo/Forward) & Left

(Turbo/Forward) & Right

Backward

Backward & Right

Backward & Left

Left

Right

PC Output Timing

VDD

OFF

VDD

OFF

4 Minutes

Note: There is no press on any function button.

VDD

Press Function

buttons

4 Minutes

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

BLOCK DIAGRAM OF APPLICATION CIRCUIT (1)

5~12V

LEFTB

OFF

RIGHTB

TESTB

POW ER

OFF

OSCI

GND

BACK

FOR

OSCO

VDD

TURBOB

RCT02

TRANSMITTER

Note: 1.The power supply for above circuit should be 5.0V to 12V.

2.This circuit is for wireless application.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

BLOCK DIAGRAM OF APPLICATION CIRCUIT (2)

2.5~5.0V

LEFTB

OFF

RIGHTB

TESTB

POW ER

OFF

OSCI

GND

BACK

FOR

OSCO

VDD

TURBOB

﹢

RCT02

TRANSMITTER

Note: 1.The power supply for above circuit should be 2.5V to 5.0V.

2. This circuit is for wireless application.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

BLOCK DIAGRAM OF APPLICATION CIRCUIT (3)

5~12V

RCT02

RIGHTB

LEFTB

POW ER

OFF

TESTB

OFF

GND

OSCI

BACK

FOR

OSCO

TURBOB

VDD

INFRA-RED

DIODES

Note: 1.The power supply for above circuit should be 5.0V to 12V.

2.This circuit is for infra-red application.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

BLOCK DIAGRAM OF APPLICATION CIRCUIT (4)

2.5~5.0V

LEFTB

OFF

RIGHTB

TESTB

POW ER

OFF

OSCI

GND

BACK

FOR

OSCO

VDD

TURBOB

RCT02

INFRA - RED

DIODES

Note: 1.The power supply for above circuit should be 2.5V to 5.0V.

2.This circuit is for infra-red application.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

TYPICAL APPLICATION FOR TRANSIMIT CIRCUIT WITH 9V BATTERY

R11

10M

4148

C12 C11

0.01u 4.7u

330

8550

POW ER

OFF

R7200K

4.7V

R12

10M

3.9K

9013

4.7K

R10

LED

6.8K

2.2u

ANTENNA

0.02u

150

6.8u

RCT02

2.2u

220K

9014

150

100

CR1

27.145

3.3K

100

0.2 u

9014

100

S2 S3

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02

CMOS IC

TYPICAL APPLICATION FOR TRANSIMIT CIRCUIT WITH 9V BATTERY

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R502-002,C

UTCRCT02 [UTC]

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