AW87348CSR中文资料High Efficiency, Low Noise, Constant Large Volume,Multi-Level AGC 8th-Generation Class K Audio Amplifierwith Ultra-Low Distortion Audio Analog Switch and FM Mode数据手册Awinic规格书

描述 Description

AW87348 is specifically designed to enhance overall sound quality. It is an upgrading 8th-generation class K audio amplifier with high efficiency, low noise, ultra-low distortion and capability of outputting constant large volume.
With integrated AWINIC proprietary Multi-Level AGC audio algorithm, AW87348 can eliminate noise in playback and improve sound quality and effect. Using a novel K-Chargepump technology, its integrated charge pump efficiency can reach 93%, and power amplifier’s overall efficiency can reach 83%. With high efficiency, AW87348 can greatly prolong smart phone usage time.
AW87348 has a setting of 7-step selectable speaker-guard output power level from 0.6W to 1.2W, suitable for different rated power speakers.
AW87348 supports speaker and receiver two-in-one application. The Class AB Receiver Mode has an ultra-low output noise of 11μV and an ultra-high power supply noise suppression of -100dB@217Hz. The Direct Mode using audio analog switch can realize ultra-low THD of 0.001% and ultra-high suppression of power supply of -100dB@217Hz.
AW87348 supports FM Mode by using Class AB power amplifier. It makes no interference from output signal for FM Application. Under FM Mode, AW87348 has a setting of 4-step selectable speaker-guard output power level from 0.65W to 1.2W.
AW87348 has built-in over-current protection, over-temperature protection and short-circuit protection. AW87348 is available in a 1.575mm×1.575mm, 0.4mm pitch CSP-16 package.

特性 Features

• Multi-Level AGC audio algorithm, effectively eliminates noise and makes sound smooth
• Speaker and Receiver two-in-one application
• Analog Switch Direct Mode: Vn<1μV, THD+N=0.001%
• Class AB Receiver Mode: 1V/V, Vn=11μV, THD+N=0.15%
• Class K Speaker Mode: 8V/V, Vn=43μV, THD+N=0.008%
• FM Mode: 8V/V, Vn=48μV, THD+N=0.15%
• Power Amplifier’s Overall Efficiency is up to 83%
• High PSRR: 100dB@217Hz
• Selectable Speaker-Guard Power Level
• Class K Speaker Mode: 0.6W, 0.7W, 0.8W, 0.9W, 1.0W, 1.1W, 1.2W
• FM Mode: 0.65W, 0.8W, 1.0W, 1.2W
• Within Lithium Battery Voltage Range, Outputs Constant Large Volume
• Support 6Ω Speaker
• Compatible with AW87338
• Super TDD-Noise Suppression
• Excellent Pop-Click Suppression
• One-Wire Pulse Control
• ESD Protection: ±6kV (HBM)
• Small 1.575mm×1.575mm, 0.4mm Pitch CSP-16 Package