器件名称: LM4908LQ
功能描述: 10kV ESD Rated, Dual 120 mW Headphone Amplifier
文件大小: 935.59KB 共21页
简 介:10kV ESD Rated, Dual 120 mW Headphone Amplifier
February 2004
LM4908 10kV ESD Rated, Dual 120 mW Headphone Amplifier
General Description
The LM4908 is a dual audio power amplifier capable of delivering 120mW per channel of continuous average power into a 16 load with 0.1% (THD+N) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4908 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LM4908 can be configured by external gain-setting resistors.
j Output power at 0.1% THD+N at 1kHz into 32
75mW (typ)
Features
n n n n n n Up to 10kV ESD protection on all pins MSOP, SOP, and LLP surface mount packaging Switch on/off click suppression Excellent power supply ripple rejection Unity-gain stable Minimum external components
Key Specifications
j THD+N at 1kHz at 120mW continuous average output power into 16 j THD+N at 1kHz at 75mW
Applications
n Headphone Amplifier n Personal Computers n Portable electronic devices 0.1% (typ)
continuous average output power into 32
0.1% (typ)
Typical Application
20075201
*Refer to the Application Information Section for information concerning proper selection of the input and output coupling capacitors.
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer is a registered trademark of National Sem……
