FEATURESAutomatic Gain Control (AGC) with Battery Tracking and Limiter function - Battery Tracking: automatically reduce system gain to extend battery life when the battery voltage is low - Limiter: adjusts the amplifier gain to prevent heavy clipping Integrated Adaptive Sync Boost Converter - Increases efficiency at low output power - No need for external diode Integrated Thermal Foldback (TFB) function
- Particularly apply to applications of 8.0V+Class D, Boost + Class AB or one with a weak thermal system, significantly increase the peak audio power Low quiescent current of 4.0mA (VBAT = 3.6V) Efficiency: 85% (VBAT = 4.2V, RL = 4Ω+22uH, Po = 0.6W) THD+N: 0.02% (VBAT = 3.6V, RL = 4Ω+22uH, Po = 0.5W, Class D) Control Mode :Hardware or I2C Power Supply/Output - VBAT from 2.8V to 5.0V - Multiple Boost Output VPOUT Settings: 5.5V, 6.5V, 7.5V, 8.0V Output Power
3.4 W (VBAT=4.2V, VPOUT = 5.5V, RL=4Ω, THD+N=1%) 4.7 W (VBAT=4.2V, VPOUT = 6.5V, RL=4Ω, THD+N=1%) 6.2 W (VBAT=4.2V, VPOUT = 7.5V, RL=4Ω, THD+N=1%) 7.0 W (VBAT=4.2V, VPOUT = 8.0V, RL=4Ω, THD+N=1%) 8.5 W (VBAT=4.2V, VPOUT = 8.0V, RL=4Ω, THD+N=10%, instantaneous)
- Two gain settings in hardware mode: 25dB, 30dB; 80-step volume control In I2C Mode
- Optional multiple modes : Boost + Class D, Boost + Class AB, Class D only and Class AB only
- Over Current /Thermal/Low voltage malfunction prevention function with auto recovery
Pb-free Packages,TSSOP20L-PP
| APPLICATIONS
LCD TV/Monitor - Tablet PC/Note Book
- Bluetooth/Wi-Fi Speakers
- Portable Speakers
- 2.1Channel Speakers
- Megaphone
- Portable Gamers
- MP4, GPS
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