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Class K
Class K audio amplifier belongs to an independent registered trademark of the audio power amplifier product series, boost to 6V, the charge pump architecture, effectively save PCB area and system cost, speaker power protection cover dominant smart phones and feature phones application.
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Product List
Part No. Power Supply (Min) (V) Power Supply (Max) (V) PVDD Voltage(V) Boost Type PO(W) （8&THD=1%） SPK Noise(uV) Protection Control Interface RCV mode RCV Noise(uV) Temperature Package (mm) Ref.price
AW8733BTQR 2.5 5.5 6.5 Charge Pump (inductor free) 2W@4.2V 29μV@12dB NCN one-wire NO / -40℃~85℃ WBQFN 3X3-20L(0.75) <1k ￥1.57
≥1k ￥1.05
AW8737AFCR 3.0 5.5 6.05 K-Charge Pump (inductor free) / 53uV@8V/V
58uV@12V/V
68uV@16V/V		 NCN one-wire NO / -40℃~85℃ FCQFN 1.6X1.6-16L <1k ￥1.81
≥1k ￥1.2
AW87317AFCR 3.0 5.5 6.05 K-Charge Pump (inductor free) 1.75W@4.2V 53uV@8V/V NCN one-wire YES 22uV@1V/V
25uV@3V/V		 -40℃~85℃ FCQFN 1.6X1.6-16L <1k ￥2.17
≥1k ￥1.45
AW8733ATQR 2.5 5.5 6.3 Charge Pump (inductor free) 1.7W@4.2V 141uV@24dB NCN one-wire NO / -40℃~85℃ WBQFN 3X3-20L(0.75) <1k ￥1.45
≥1k ￥0.97