NJW1124 Ver la hoja de datos (PDF) - Japan Radio Corporation

Número de pieza

componentes Descripción

Lista de partido

NJW1124

Voice Switched Speakerphone circuit

Japan Radio Corporation  

NJW1124

Notes:3 list of Parts of Attenuator controller

Terminal

Parts

Recommend Value

Notes

Cin C7,C8,C17,C1 100nF～1µF

Rin R4,R5,R11,R125.1k～51kΩ

Co C4,C5,C20,C2 0.05µF～1µF

Ccp C2,C22

100nF～1µF

Cct C5

1µF

The input capacitor forms HPF with Rin.

V-I converter,which depends on sensitivity of each level detectors and noise

detector. Smaller value lower detection level. Larger value raise detection level.

Input voltage should be less than 100mA(200µΑ @25oC).

The capacitor keeps voltage level.Larger value extends swicthing time.Smaller

value shortens swicthing time, and deteriorate rectification property that adverse

affects back ground noise monitor on low frequency signal.

The capacitor judges whether the signal is noise.Larger value extends the judging

time.Smaller value shortens the judging time.

The capacitor generates the voltage controlling attenuater. Larger value extends

attenuating time on switching and idle mode.Smaller value shortens the

attenuating time.Please be careful of conduction caused by condensation due to

this terminal is high impedance.Attenuater gain may be fluctuant .

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omissions. The

application circuits in this databook are

described only to show representative usages

of the product and not intended for the

guarantee or permission of any right including

the industrial rights.

– 29 –

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