
Jingjing Microelectronics Co., Ltd
Overview
EG8305 is a 3W mono filterless Class D audio amplifier. High PSRR (power supply rejection ratio), differential inputs reject noise and RF interference disturb. 90% efficiency and extremely small PCB area make EG8305 a model for handheld device applications. The 1ms fast startup time without popping sound also makes the EG8305 a model for handheld device applications. The EG8305 becomes an ideal choice for handheld computer applications. The design of filterless architecture eliminates the output filter and reduces the number of peripheral components. It saves PCB area and system costs and simplifies application design.
FEATUREs
◾ Excellent full-bandwidth EMI suppression capability
◾ Excellent "power on, power off" noise suppression
◾ 3W output power (5V power supply, 4Ω load)
◾ 0.1%THD (0.5W output power, 3.6 power supply)
◾ No filter required Class D structure
◾ Efficiency up to 90%
◾ High PSRR:-80dB(217Hz)
◾ Low quiescent current: 3mA (3.6V power supply, no load)
◾ Working voltage range: 3.0V-5.5V
◾ Overcurrent protection, overheating protection, undervoltage protection
◾ Package form: SOP8 lead-free package.
APPLICATION areas
◾ Mobile phone/smartphone
◾ MP4/MP3
◾ GPS
◾ Electronic dictionary, game console protection