TS4984FC datasheet(2/30 Pages) STMICROELECTRONICS

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Typical Application Schematic

TS4984FC

2/30

Typical Application Schematic

Figure 1 show a typical application schematic for the TS4984FC.

Table 1.

External component descriptions

Figure 1.

Application information

Components

Functional Description

Rin L,R

Inverting input resistors which sets the closed loop gain in conjunction with Rfeed.

These resistors also form a high pass filter with Cin =1/2 x Pi x Rin xCin))

Cin L,R

Input coupling capacitors which blocks the DC voltage at the amplifier input terminal

Rfeed L,R

Feedback resistors which sets the closed loop gain in conjunction with Rin

Supply Bypass capacitor which provides power supply filtering

Bypass pin capacitor which provides half supply filtering

AV L, R

Closed loop gain in BTL configuration = 2 x (Rfeed / Rin) on each channel

100nF

Cin1

VCC

100nF

Cin2

INPUT2

StandBy

Control

Bias

AV = -1

BYPASS

STDBY

VOUT1-

VOUT1+

AV = -1

VOUT2-

VOUT2+

BYPASS

IN1-

IN1+

IN2+

IN2-

22k

Rfeed1

Cfeed1

INPUT1

OUTPUT1

OUTPUT2

W ire optional

Internal connection

Cfeed2

22k

Rin1

22k

Rin2

22k

Rfeed2

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