Integrated signal and sound processing enhances audio converter IC

The UDA1344TS is a single-chip stereo ADC and DAC from NXP Semiconductors incorporating signal-processing features for fast performance and high integration.

Low power consumption and low-voltage operation enable use in portable digital audio equipment incorporating recording and playback functions.

Multiple, widely-used data formats are supported, including I²S-bus and MSB-justified formats with word lengths up to 20 bits, as well as the LSB-justified data format with word lengths of 16, 18 and 20 bits.

The device also supports three combined data formats with MSB-justified data output and LSB-justified data input of 16, 18 or 20 bits.

The UDA1344TS also provides a serial hardware interface enabling operation in static-pin mode or under L3 MCU-interface control. Static-pin mode permits control over system clock-frequency selection, data input/output format selection, de-emphasis and mute control, power-down and ADC input-level selection, whereas in L3 mode the device supports special Digital Sound Processing (DSP) features in playback mode. These include de-emphasis, volume control, bass boost, treble and soft mute.

 

FEATURES 3.0V power supply ≤32mA supply current Integrated high-pass filter Integrated digital interpolation filter plus non-inverting DAC Overload detector

APPLICATIONS High-end digital audio and multimedia equipment Home theatre Digital radio

 

NXP Semiconductors/UDA1344TS