NJU7394 Ver la hoja de datos (PDF) - Japan Radio Corporation

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NJU7394

Pushbutton Interface EVR

Japan Radio Corporation  

NJU7394

■ TIMING CHART (Volume UP/DOWN control)

1. Recognition condition of Volume UP/DOWN push button I/F

1-a.) The Volume UP/(DOWN) recognizes the data-command to the case that the DOWN(UP) button has not been pushed,

besides that the UP(DOWN) button is pushed for the longer time than the “Pulse Distinction Time: 20ms".

1-b.) The Volume UP/(DOWN) recognizes the data-command to the case that the UP(DOWN) button has pushed earlier

than the DOWN(UP) button, besides the UP(DOWN) button is pushed for the longer time than the “Pulse Distinction

Time: 20ms".

> Pulse Distinction Time

(20ms typ.) Recognition

> Pulse Distinction Time

(20ms typ.) Recognition

UP

UP

DOWN

DOWN

1-a

1-b

2. Invalidity condition of Volume UP/DOWN push button I/F

2-a.) The Volume UP/(DOWN) does NOT recognize the data-command to the case that the UP(DOWN) button has pushed

for the shorter time than the “Pulse Distinction Time: 20ms". (The Chattering prevention function operates.)

2-b.) The Volume UP/(DOWN) does NOT recognize the data-command to the case that the UP(DOWN) button has pushed

for the shorter time than the “Pulse Distinction Time: 20ms" after released button. (The Chattering prevention function

operates.)

2-c.) The Volume UP/(DOWN) does NOT recognize the data-command to the case that the UP(DOWN) button has pushed

before releasing DOWN(UP) button.

< Pulse Distinction Time

(20ms typ.)

< Pulse Distinction Time

(20ms typ.)

UP

DOWN

2-a

UP

DOWN

2-b

UP

DOWN

2-c

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NJU7394 Ver.3.0_E

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