PT8A977BDE中文資料百利通數(shù)據(jù)手冊(cè)PDF規(guī)格書

General Description

The PT8A977B and PT8A9781 provide a complete control functions to the remote-controlled toy. The

PT8A9781 has four output pins corresponding with the four actions i.e, forward, backward, right, left.

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.

Features

? PT8A977B works as encoder and PT8A9781 works as decoder

? Four control functions

? Operating power-supply voltage: 1.8V to 5.0V(977B) 1.0V to 1.5V (9781)

? Auto-power-off and oscillation-off if no press on any button (977B)

? Press on any button to wake up (977B)

? On-chip oscillator with an external resistor (977B)

? On-chip oscillator with an external resistor and capacitor (9781)

? On-chip amplifiers (9781)

? Low operating current

? Few external components needed