TS488 데이터 시트보기 (PDF) - STMicroelectronics

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TS488

Pop-free 120mW stereo headphone amplifier

STMicroelectronics 

TS488-TS489

Typical application schematic

1

Typical application schematic

Figure 1. Typical application for the TS488-TS489

TS488=stdby

TS489=stdby

Table 1. Application component information

Component

Functional description

Rin1,2

Cin1,2

Rfeed1,2

Cs

Cb

Cout1,2

Inverting input resistor that sets the closed loop gain in conjunction with Rfeed.

This resistor also forms a high pass filter with Cin (Fc = 1 / (2 x Pi x Rin x Cin)).

Input coupling capacitor that blocks the DC voltage at the amplifier’s input terminal.

Feedback resistor that sets the closed loop gain in conjunction with Rin.

AV= Closed Loop Gain= -Rfeed/Rin.

Supply output capacitor that provides power supply filtering.

Bypass capacitor that provides half supply filtering.

Output coupling capacitor that blocks the DC voltage at the load input terminal.

This capacitor also forms a high pass with RL (Fc = 1 / (2 x Pi x RL x Cout)).

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