AN12978A
AN12978A is Monaural BTL amplifier manufactured by Panasonic.
Overview
- Features
- Package
- Type ……..……………………………………………………………………………………………………. 3 ……..……………………………………………………………………………………………………. 3 ………………………………………………………………………………………………………. 3 …………………………………...………………………………………………………………………. 3
- Applications
…………….………………………………………………………………………………………………… 3 …………………..………………………………………………………………………………. 5 ……………………..……………..………………………… ………………… 6 ………………….………………….…………………………………………………. 7 ……………………………………………………. 9
- Application Circuit Example (Block Diagram) ……….…………………………………………………………. 4
- Pin Descriptions
- Absolute Maximum Ratings
- Electrical Characteristics
- Technical Data
- Usage Notes
- Operating Supply Voltage Range …………………………………………..……………………………………. 6
- Electrical Characteristics (Reference values for design)
…………………………………….………….…………………………………………………. 10 ……….……………………….………………….…………………………………………………. 20
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SDE00030BEB
Monaural BTL amplifier IC with built-in AGC (I2C bus-control correspondence)
- Overview
AN12978A is the monaural BTL amplifier which contained the AGC circuit for clip prevention of a speaker output. This IC performs a mode change by the I2C bus control system. (Standby function ON/OFF change etc.)
- Features y Selection by I2C bus control is possible in the on-level of AGC. (3-bit, 8-step) y Selection by I2C bus control is possible in an attack/recovery time of AGC. (attack: 2-bit , recovery: 3-bit) y The resistance and the capacitor of a detector circuit which were being used for the conventional AGC are unnecessary. y In order to realize high efficiency of output power, it adopts CMOS power amplifier circuit. y Built-in shutdown function. y Built-in Gv-Switch.
- Applications y Audio amplifier for mobile, such as a cellular phone
- Package y 15 pin Wafer level chip size package (WLCSP) Size: 2.0 mm × 2.0 mm (0.5 mm pitch)
- Type y Bi-CMOS IC
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SDE00030BEB
- Application Circuit Example (Block Diagram)
VCC = 3 V Speaker 8 Ω Shutdown Operate 1 μF 1 μF OUT_NEG 11 +14 d B GNDSP 12 7 OUT_POS 13...
