Section 1: Chip Function Description

XS9971 It's a low-EMINo filter required.AB/D CategoryOptional audio power amplifier.5.5V Operating voltage, max.Drive power is5.5W（VDD=5V,2Ω BTL LoadTHD<10%Total harmonic distortion noise within the audio range is less than1％（20Hz～20KHz)；

XS9971 The application circuit is simple, requiring only a few peripheral components.

XS9971 Output does not require external coupling capacitors or lift capacitors.Buffer Network

XS9971 AdoptedESOP8 Sealed, suitable for small soundIn portable systems with low weight and compact sizes.

XS9971 Can be switched to shutdown mode to reducePower Consumption

XS9971 Internal overheat automatic shutdown protection mechanism.

XS9971 Stable employment, adjustable via external resistance configurationThe amplifier's voltage gain is convenient for application.

II. Key Features of the Chip Function

Extremely lowEMIHigh efficiency, superior sound quality

AB/D Class switching, single channel

  VDD=5.5V，RL=2Ω，Po=5.5W，THD+N≤10%

  VDD=5V，RL=4Ω，Po=3W，THD+N≤10%

Wide operating voltage range2.5V—7V

Excellent shutdown voltagePOP Sound Suppression

AdoptedESOP8 Sealed

Three, the basic specifications of the chip

Laptops, Desktop Computers

Amplifier

Bluetooth Speaker