ChipSourceTek LTK5313
The LTK5313 is a mono, filter-free Class-D audio amplifier with capacitor charge-pumped integrated, available in ESOP-10 package. The built-in charge-pumped converter generates selectable 6.4V supply voltage for the Class-D amplifier. This provides a much louder audio output than a stand-alone amplifier directly connected to the battery.FEATURES
● Operating Voltage: 2.8V-5V● Four AGC modes
● Integrated Charge-Pumped with Adaptive Control
● No External Inductor and Diode Required
● Output Power at 10% THD+N – 5W, at VDD=4.2V, RL=4Ω at 1% THD+N – 4.2W, at VDD=4.2V, RL=4Ω
● Thermal and Over-Current Protections
● One-Wire Pulse Control
● Ultra Now Noise: 90uV
● Excellent de-POP function
● Space Saving Packages ESOP-10
● Lead Free and Green Device Available (RoHS Compliant) LTK5313
APPLICATIONS
● Bluetooth audio; Smart audio● Loud speaker
● Portable multimedia device
● Consumer audio equipment LTK5313
GENERAL DESCRIPTION
The Automatic Gain Control (AGC) adjusts Class-D gain to prevent heavy clipping. The LTK5313 also provide AB/D function, this function can completely avoid the FM disturbance when set to AB mode. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the LTK5313 an ideal choice for portable devices.