AiT Semiconductor Inc.
A2203
www.ait-ic.com
AUDIO AMPLIFIER
1.1 WATT AUDIO POWER AMPLIFIER
External Components Description
Components
Functional Description
Inverting input resistance which sets the closed-loop gain in conjunction with
Rf. This resistor also forms a high pass filter with Ci at fc = 1/(2πRi*Ci).
Input coupling capacitor which blocks the DC voltage at the amplifiers input
terminates. Also creates a high-pass filter with Ri at fc = 1/(2πRi*Ci)..
Feedback resistance which sets the closed-loop gain in conjunction with Ri.
The gain is AVD=2*(Rf/Ri).
Ri
Ci
Rf
Cs
Cb
Supply bypass capacitor which provides power supply filtering.
Bypass pin capacitor which provides half-supply filtering. Refer to the section.
REV2.1
- JUL 2008 RELEASED, SEP 2018 UPDATED -
- 9 -
AITSEMI [ AiT Semiconductor ]
