TS482_05 STMICROELECTRONICS [STMicroelectronics], TS482_05 Datasheet - Page 7

Manufacturer Part Number

TS482_05

Description

100mW Stereo Headphone Amplifier

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.TS482_05.pdf (26 pages)

Electrical Characteristics

7/26

Table 7.

Components

Rfeed

Cout

Rpol

Rin

Cin

Components description

Inverting input resistor which 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 which blocks the DC voltage at the amplifier input terminal

Feed back resistor which sets the closed loop gain in conjunction with Rin

Supply Bypass capacitor which provides power supply filtering

Bypass capacitor which provides half supply filtering

Output coupling capacitor which blocks the DC voltage at the load input terminal

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

These 2 resistors form a voltage divider which provide a DC biasing voltage (Vcc/2) for

the 2 amplifiers.

Closed loop gain = -Rfeed / Rin

Functional Description

TS482