TDA7310 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7310

SERIAL BUS CONTROLLED AUDIO PROCESSOR

STMicroelectronics 

TDA7310

APPLICATION SUGGESTION (see to Test circuit)

Component

C1 to C4,

C8 to C11

C5, C7

C6

C12

C13, C14

C15, C16

C17, C18

R1

C!9, C20

R2

C21

C22

Recc. Value

2.2µF

4.7µF

10µF

22µF

2.2µF

100nF

100nF

5.6kΩ

100nF

5.6kΩ

2.7nF

Purpose

THD optimization at low

frequencies

CMRR optimization

differential input

CREF • SVR optimization

< -66 dB

Decoupling Input-Output

if external equalizer is

not used

Loudness characteristic

Bass Filter

(standard T - type)

cut freq. = 100Hz

Smaller than Recc. Value

Larger than

Worse THD at very low

frequencies

Worse CMRR for ratio not equal to 1⁄2

Better SVR at low

frequencies

Worse SVR at low

frequencies

Treble Filter

Higher cut frequency

Lower cut frequency

Figure 1: Loudness versus Volume Attenuation

Figure 2: Loudnessversus Frequency

(CLOUD = 100nF)

6/15

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