UTCRCR02

CMOS IC

QW-R502-001,B

Decoder For Remote Controller

With Five Functions

DESCRIPTION

The chip can be used with the encoder RCT02 to provide a

complete control functions to the remote-controlled toy. The

RCR02 has five output pins corresponding with the five

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

and turbo. The received signals are amplified by the

three-stage amplifier, and then the appropriate amplified

signals are sampled, fault-tolerantly checked and decoded to

control the actions of the remote-controlled toy.

There is an internal oscillator in the RCR02.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%.

FEATURES

*Five output pins for control functions

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

*On-chip reversing amplifiers

*On-chip oscillator with an external resistor

*Low operating current

*Few external components needed

DIP-16

SOP-16

LOGIC BLOCK DIAGRAM

TURBO

OSCI

Oscillator

Timing

Generator

Latch

Decoding

Circuit

Signal Sample

and Fault-

Tolerant Check

Output

Circuit

Amp

Amp

Amp

OSCO

SI

VI1

VI2

VO1

VO2

RIGHT

FORWARD

BACKWARD

LEFT

Control

Logic

LDB

RDB