PAM8202 Datasheet, PDF (5/8 Pages) List of Unclassifed Manufacturers – Tiny Package 2 Watt Class-D Stereo Audio Amplifier

PAM8202
Tiny Package 2 Watt Class-D Stereo Audio Amplifier
OPERATION INFORMATION
Calculating Output Power of BTL amplifier
Vsupply
Vsat
Vsat
Vsupply
Output power is related to supply voltage and the saturation
voltage (Vsat). The Maximum peak-to-peak output voltage
on one side of BTL amplifier output is
Vpk-pk
Vp-p = ( Vsupply 2 X Vsat )
Vp-p
Vrms =
One side
22
Maximum output power of a BTL amplifier with 1% THD is
Pout (1%) = 4 X Vrms²/ Rload
Maximum output power of a BTL amplifier with 10% THD is
Pout (10%) = Pout (1%) X 1.25
Output Power vs. Vp-p
BTL Output Power
5.0
4.0
4
3.0
2.0
8
1.0
0.0
0
1
2
3
4
5
6
Vdd - Vast (V)
Power Analog Microelectronics, Inc.
CONFIDENTIAL. DO NOT DISTRIBUTE OR REPRODUCE WITHOUT PERMISSION FROM P.A.M.
PRELIMIARY DATASHEET
5
PAM8202 Rev. 1.1