TS488 Datasheet, PDF (3/32 Pages) STMicroelectronics – Pop-free 120mW stereo headphone amplifier

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
R_in1,2
C_in1,2
R_feed1,2
C_s
C_b
C_out1,2
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)).
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 R_in.
A_V= Closed Loop Gain= -R_feed/R_in.
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 R_L (F_c = 1 / (2 x Pi x R_L x C_out)).
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