STMicroelectronics Pop-free 120 mW stereo headphone amplifier DEMOTS488S DEMOTS488S データシート

Doc ID 11971 Rev 5

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R

in1,2

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

feed

.

This resistor also forms a high pass filter with C

in

 (F

c

=

1 / (2 x Pi x R

in

 x C

in

)).

C

in1,2

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

R

feed1,2

Feedback resistor that sets the closed loop gain in conjunction with R

in

. 

A

V

= Closed Loop Gain= -R

feed

/R

in

. 

C

s

Supply output capacitor that provides power supply filtering.

C

b

Bypass capacitor that provides half supply filtering.

C

out1,2

Output coupling capacitor that blocks the DC voltage at the load input terminal.
This capacitor also forms a high pass with R

L

 (F

c

=

1 / (2 x Pi x R

L

 x C

out

)).