AN12948A Panasonic Semiconductor, AN12948A Datasheet - Page 3

• Manufacturer Part Number: AN12948A
• Description: Audio Power IC
• Manufacturer: Panasonic Semiconductor

AN12948A
AN12948A
Audio Power IC for Note PC
amplifier within charge pump.
Overview
Features
Applications
Package
Type
AN12948A is the stereo BTL amplifier which contained the AGC circuit for clip prevention of a speaker output and headphone
This IC performs a mode change by pararel control system. (Standby function ON/OFF change etc.)
In order to realize high efficiency of output power, it adopts CMOS power amplifier circuit .
Max. Power: 1.4 W (VCCSP = 5 V, RL = 8 Ω, THD = 10%)
The resistance and the capacitor of a detector circuit which were being used for the conventional AGC.
The filter circuit for the frequency response decision can be composed of the input circuit.
Built-in direct drive headphone amplifier within charge pump.
STBY function (countermeasure pop noise)
The standby terminal of the speaker amplifier and the headphone amplifier is prepared by each of two terminals.
When either of two terminals becomes "High", it is standby OFF.
AGC ON/OFF function
AGC ON Level select function
AGC attack time select function
AGC recovery time select function
Cellular phone measures
RF noise prevention
Built-in over current protection
For the notebook personal computer
48-pin plastic quad flat package with heat slug (QFP type)
Silicon monolithic BI-CMOS IC
2.2 W (VCCSP = 5 V, RL = 4 Ω, THD = 10%)
SDF00042AEB
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