LPA2101A
Filterless 30W Class F Mono Audio Amplifier With AGC function
概述
The LPA4732 stereo headphone amplifiers are designed for portable equipment where board space is at a premium. The LPA4732 deliver up to 215mW per channel into a 16Ω load or 194mW into a 32Ω load and have low 0.006% THD+N. An 78dB at 217Hz power-supply rejection ratio (PSRR) allows these devices to operate from noisy digital supplies without an additional linear regulator. Comprehensive anticlick-and-pop circuitry suppresses audible clicks and pops on startup and shutdown. A low-power shutdown mode reduces the supply current to 0.1µA.The LPA4732 operates from a single 2.5V to 5.5V supply, consumes only 5mA supply current, and is specified over the extended -40 ℃ to +85 ℃ temperature range. The devices are available in tiny 16-pin TQFN (3mm✕3mm✕0.8mm) packages.
应用
◆MP3 Players
◆Smart/Cellular Phones
◆PDAs
◆Portable Audio
◆Notebook and Desktop PCs
◆Flat-Panel Monitors
◆Smart/Cellular Phones
◆PDAs
◆Portable Audio
◆Notebook and Desktop PCs
◆Flat-Panel Monitors
数据参数
数据参数
输入电压(V)
2.5~5.5
工作类型
Class AB
通道数量
2
电源抑制比(dB)
-80
输出功率
215mW*2,5V@16Ω,0.1%
关断电流(uA)
2
特点
0.3uA Differential input,Enough output power,Low THD+N
封装
QFN-16(3*3)
特征
特征
◆2.5V to 5.5V Single-Supply Operation
◆No Bulky DC-Blocking Capacitors Required
◆No Degradation of Low-Frequency Response Due to Output Capacitors
◆Differential Inputs for Enhanced Noise Cancellation
◆215mW into 16Ω Load from 5V Power Supply at THD+N = 1% (TYP, per Channel)
◆Low 0.006% THD+N
◆High PSRR (-80dB at 217Hz)
◆Short-Circuit and Thermal-Overload Protection
◆Integrated Click-and-Pop Suppression
◆Low Quiescent Current (3mA at VDD = 5V)
◆Enable Control
◆Under-Voltage Lockout Function
◆-40℃ to +85℃ Operating Temperature Range
◆Available in a Space-Saving 16-Pin TQFN (3mm✕ 3mm✕ 0.8mm) Package
◆No Bulky DC-Blocking Capacitors Required
◆No Degradation of Low-Frequency Response Due to Output Capacitors
◆Differential Inputs for Enhanced Noise Cancellation
◆215mW into 16Ω Load from 5V Power Supply at THD+N = 1% (TYP, per Channel)
◆Low 0.006% THD+N
◆High PSRR (-80dB at 217Hz)
◆Short-Circuit and Thermal-Overload Protection
◆Integrated Click-and-Pop Suppression
◆Low Quiescent Current (3mA at VDD = 5V)
◆Enable Control
◆Under-Voltage Lockout Function
◆-40℃ to +85℃ Operating Temperature Range
◆Available in a Space-Saving 16-Pin TQFN (3mm✕ 3mm✕ 0.8mm) Package
