TS4956 datasheet(3/51 Pages) STMICROELECTRONICS

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TS4956

Typical application schematic

3/51

Typical application schematic

Figure 1.

Typical application for the TS4956 (mode 1, 2, 3, 4, 5, 6)

Table 4.

External components descriptions

Components

Functional description

Cs1, Cs2

Supply bypass capacitors which provide power supply filtering.

Bypass capacitor which provides half-supply filtering.

Cin1 to Cin4

Input capacitors which form together with input impedance Zin first-order high pass

filter to block DC voltage on inputs

Cout

Output capacitor which forms with output load RL first-order high pass filter to block

half-supply voltage on single-ended output.

Resistor to keep

Cout charged for better pop performance on single-ended output.

Bias

control

Select

I2C

Mode

TS4956

LHP

MLO

PHG

RHP

LHP Amplifier

Speaker Amplifier

RHP Amplifier

PHG Amplifier

I2CVCC

BYPASS

Digital volume

SRP+

SRN-

MLO Amplifier

Stereo

Input Left

Input Right

LIN

RIN

Stereo

Input Left

Input Right

MIP

MIN

Cin3

330nF

Cin4

330nF

1µF

Cs1

1µF

16/32 Ohms

Cout

220µF

8 Ohms

Cs2

100nF

I2CVCC

SCL

SDA

MODE1: Gx(MIP+MIN)

MODE5: Gx(MIP+MIN)

MODE4: GxLIN

MODE4: GxRIN

Vcc

Cin1

330nF

Cin2

330nF

MODE3: Gx(MIP+MIN)

MODE2: Gx(LIN+RIN)

MODE6: Gx(LIN + RIN)

Diff. input +

Diff. input -

SE input left

SE input right

I2C BUS

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