Datasheet > ISD14B40

ISD14B40

更新时间： 2022-02-26 12:00:05

品牌	Logo	应用领域
新唐 - NUVOTON		/
页数	文件大小	规格书
27页	993K
描述
SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE

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ISD14B40 数据手册

ISD14B00

8. TYPICAL APPLICATION CIRCUIT

The following typical application examples on ISD14B00 series are for references only. They make

no representation or warranty that such applications shall be suitable for the use specified. It’s

customer’s obligation to verify the design in its own system for the functionalities, voice quality,

current consumption, and etc.

In addition, the below notes apply to the following application examples:



The suggested values are for references only. Depending on system requirements, they can be

adjusted for functionalities, voice quality and degree of performance.

It is important to have a separate path for each ground and power back to the related terminals to

minimize the noise. Besides, the power supplies should be decoupled as close to the device as

possible.

Also, it is crucial to follow good audio design practices in layout and power supply decoupling. See

recommendations in Application Notes from our websites.

Example #1: Operations via start and end address under Address Mode.

REC

ADDR

1 K

PLAYE

Vcc

Gnd

LED

PLAYL

XCLK

V_CCA

V_CCD

V_CCP

V_CCD

V_SSD

V_CCA

V_SSA



0.1 F

10 F*

To switches or

address I/Os

V_CC

V_CCA

ISD14B00



0.1 F

10 F*

4.7 k

V_CCP



4.7 F*

V_CCP



0.1 F

4.7 k



10 F*

V_SSP1



10 F*



0.1 F*



0.1 F

Mic+_AnaIn

Mic-

V_SSP2



0.1 F*



4.7 F*

AGC

Rosc

SP+

SP-

Speaker

4.7 k



Rosc*

Publication Release Date: Jan 19, 2009

Revision 0.30

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