TS4999 datasheet(5/36 Pages) STMICROELECTRONICS

部件名	TS4999

功能描述	Filter-free stereo 2.8 W class D audio power amplifier with selectable 3D sound effects

PDF	36 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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5 / 36 page

TS4999

Application information

5/36

Application information

Figure 1.

Typical application schematic

Note:

See Section 4.9: Output filter considerations on page 29.

TS4999

Left speaker

Right speaker

Cin

Left IN+

Left IN-

Differential

Left Input

Cin

Right IN+

Right IN-

Differential

Right Input

Standby C ontrol

VCC

CsL

1uF

0.1uF

Gain Select

Control

CsR

1uF

3D Effect

Control

VCC

Gain

Select

Oscillator

PWM

Gain

Select

Standby

Control

Protection

Circuit

Bridge

Lin+

Lin-

Rin+

Rin-

STBYL

STBYR

Lout+

Lout-

Rout+

Rout-

RPVCC

PGN D

AGND

AVC C

LPVCC

Table 4.

External component description

Components

Functional description

CS, CSL, CSR

Supply capacitor that provides power supply filtering.

Cin

Input coupling capacitors that block the DC voltage at the amplifier input terminal.

The capacitors also form a high pass filter with Zin

(Fcl = 1 / (2 x π x Zin x Cin)). Note that the value of Zin changes with each gain setting.

These coupling capacitors are mandatory.

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