MAX97001 with mono-class speakers and audio of H-headphone amplifiers

MAX97001 Audio subsystem with mono D-class speakers and H-headphone amplifiers Overview MAX97001 mono audio Sonic system integrates mono speaker amplifiers, stereo headphone amplifiers, and all-way DPST switches. Headphone amplifiers and speaker amplifiers have independent volume control and on / off control. The 4 inputs can be configured to 2 way differential inputs or 4-way single-ended inputs. The entire subsystem design is optimized to the highest efficiency, and the 700MW high-efficiency D speaker amplifier can be powered directly from the battery, and only 1μA is consumed in the shutdown mode. The H-headphone amplifier adopts a dual-mode charge pump that provides an output signal for increasing efficiency, without outputting a coupling capacitor. The speaker amplifier has a distortion limiter that automatically reduces the volume when large signal clipping occurs, and does not reduce the sound quality under large signal conditions while providing high gain for small signals. All controls are implemented through the 2-wire I2C interface, and the MAX97001 operates in -40 ° C to + 85 ° C expanded level temperature range, using 2 mm x 2.5 mm, 20 solder ball WLP package (solder spacing of 0.5 mm). Key feature 2.7V to 5.5V speaker amplifier supply voltage 1.6V to 2V headphone amplifier supply voltage The speaker output can reach 700MW (VPVDD = 3.7V, ZSPK = 8Ω + 68μH) The headphone amplifier output is 37MW per channel (RHP = 16Ω) Low radiation D amplifier High efficiency H-headphone amplifier Land-based earphone output 2-channel stereo single-end / mono differential input Integrated distortion limiter (speaker output) Integrated DPST simulation switch 无 无 嗒 / 噼噼 No TDMA noise 2mm x 2.5mm, 20 soldering ball WLP package (solder spacing is 0.5mm) Application / use Cellular phone portable multimedia player Simplified block diagram, technology area Heilind won the title of "2017 Huaqiang Electronic Network Quality Supplier" Tas5634300W stereo PurePath (TM) HD digital input efficient power level TAS2557 5.7W D-class audio amplifier with H-class boost and speaker detection function Ruckus NetWorks appointed Deng Weidong for the general manager of China China Site Electronic Technology Forum - Power Technology Practice Seminar held in Wuhan

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