ET4344/ET4345
General Description

The ET4344 family members are complete, stereo digital-to-analog output systems including interpolation,multi-bit D/A conversion and output analog filtering in a 10-pin package. The ET4344 family support all major audio data interface formats, and the individual devices differ only in the supported interface format.
The ET4344 family is based on a fourth order multi-bit delta-sigma modulator with a linear analog low-pass filter. This family also includes auto-speed mode detection using both sample rate and master clock ratioas a method of auto-selecting sampling rates between 2kHz and 200kHz.
The ET4344 family contains on-chip digital de-emphasis, operates from a single +3.3V or +5V power supply, and requires minimal support circuitry. These features are ideal for digital televisions, home theater and set top box products, and automotive audio systems.
The ET4344 family is available in a MSOP10 package in ambient operating temperature -40 to +85 °C.

Features
  • Multi-bit Delta-Sigma Modulator

  • 24-bit Conversion

  • Automatically Detects Sample Rates up to 192kHz.

  • 105 dB Dynamic Range

  • -90 dB THD+N

  • Low Clock-Jitter Sensitivity

  • Single +3.3V or +5V Power Supply

  • Filtered Line-Level Outputs

  • On-chip Digital De-emphasis

  • Package:MSOP10


Pin Configuration

ET4344/ET4345(图1)

Block Diagram

ET4344/ET4345(图1)

Application Circuits

ET4344/ET4345(图1)

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