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SIA9196

The SIA9196 is a digital input Class-D audio amplifier that integrates an adaptive high-efficiency DC-DC boost converter and IV detection. The multi-level adaptive DC-DC converter can boost the output voltage up to 10.5V. The boosted output voltage can easily drive hands-free speakers from 4Ω to 8Ω for audio playback, or receiver speakers up to 32Ω for hands-free playback. Thanks to the adaptive boost converter, the SIA9196 saves over 10% of power in low-power output mode compared to conventional solutions on the market.

Integrated speaker voltage and current detection capabilities enable real-time monitoring of the speaker, helping external algorithms protect the speaker from damage.

The SIA9196 also provides over-temperature protection, over-current protection, over-voltage protection, and under-voltage protection to protect the chip.

The SIA9196 can be configured by an external processor via I2C. It can be set to one of four dedicated I2C addresses or a general-purpose I2C address, allowing multiple SIA9196 devices in the system to connect to the same I2C bus.

The chip is packaged in a 36-ball WLCSP with a 0.4mm pitch. The product can operate over a wide temperature range of -40°C to +85°C.

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Product Features

  • Speaker voltage and current detection

  • Dynamically adaptive 10.5V DC-DC boost converter

  • In idle power mode, the VDDD shutdown current is as low as 3mA.

  • Overall efficiency up to 90% (8Ω)

  • Noise as low as 10μVrms

  • When THD+N<1%, the output power reaches up to 5.3W (8Ω).

  • Low explosion sound

  • Chip protection: OTP, OCP, OVP, UVP

  • I2S/TDM interface:

    Up to 8 slots TDM

    8kHz to 192kHz sampling rate

    Multiple data bit widths: 16, 24, 32 bits

  • Supports 1.2V/1.8V I/O

  • No MCLK required

  • 36-ball WLCSP package

Application scenarios

Application diagram

Sample application

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