NJU7505XD Просмотр технического описания (PDF) - Japan Radio Corporation

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NJU7505XD

BAND PASS FILTER FOR AUDIO SPECTRUM ANALYZER DISPLAY

Japan Radio Corporation  

! APPLICATION CIRCUIT (2)

AUDIO IN

Lch

AUDIO OUT

RESONANCE

CIRCUIT

NJU7305

NJU7505

AUDIO IN

Rch

AUDIO OUT

RESONANCE

CIRCUIT

ATT.

AIN *2

NJU7505 OSC2

*1 ATT.

*2

A IN

NJU7505

OSC1

OSC2

13K

220pF

RD

RST/CLKO

RST/CLKO

VSS

RD

AOUT

*3

*3

AOUT

A/D

A/D

µCOM

DISPLAY DRIVER

DISPLAY

*1 ) The capacitor for AC coupling connected to the AIN terminal should be needed.

*2 ) Connecting the attenuator, the dynamic range of the display can be changed.

*3 ) When the voltage of the output terminal of the µCOM gets over the VSS level,

the diode should be connected between the RST/CLKO terminal and the output

of the µCOM.

[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.

Ver.2004-06-04

-9-

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