SM6801A Datasheet | NPC

..net SM6801A Class-D Mono Amplifier for Portable Device OVERVIEW The SM6801A is an analog-input, class-D mono amplifier. Class-D operation provides high efficiency and low power consumption. The device also incorporates an original real-time operation dynamic range pression function that effectively suppresses the distortion in the saturation level region output by soft-clipping, boosting the average sound pressure from the speaker during playback. It also incorporates an input equalizer pin for output speaker frequency characteristics adjustment. These Features make the device ideal for use in mobile telephones and speaker applications requiring miniaturization and high-efficiency. The output stage has a BTL output configuration where the output waveform inverts only the modulation ponents, enabling direct drive connection, without using an LC filter, to a dynamic speaker. The device is available in miniature 16-pin QFN packages, and requires only a peripheral chip capacitor to form a miniature amplifier circuit. Features PINOUT (Top view) OUTP VSS2 OUTN VDD3 VDD4 PDWN VDD2 MUTEN DRCN VDD1 VREF1 IN TESTN VSS1 EQN EQP Operating supply voltage - VDDS = 2.0 to 3.6V (input, logic) - VDDP = 2.0 to 5.5V (output) Low current consumption: 4.2m A (VDD = 3.6V) 1.6m A (VDD = 2.4V) Output power: 0.7W (VDD = 3.6V, 8Ω load) 0.28W (VDD = 2.4V, 8Ω load) Output fundamental frequency: 125k Hz Gain - 6d B (Normal) - 15d B to 6d B automatic adjustment in response to the input level (Dynamic range pression mode) Silicon-gate CMOS process Package: 16-pin QFN PACKAGE DIMENSIONS APPLICATIONS (Unit: mm) Cellular phone PDA Digital still camera TOP VIEW 3.0 ± 0.08 B BOTTOM VIEW 1.8 3 = 1.5 ± 0.05 3.0 ± 0.08 0.3 ± 0.1 ORDERING INFORMATION Device SM6801AB Package 1.8 C 0.3 0.22 ± 0.05 0.02 S A B 0.1 ± 0.05 φ 0.05 M S A B 16-pin QFN 0.2 S 0.2 ± 0.05 0.05 S 0.5 0.7 ±...