UDA1334ATS: Low power audio DAC with PLL

The UDA1334ATS is a single chip 2 channel digital-to-analog converter employing bitstream conversion techniques, including an on-board PLL. The extremely low power consumption and low voltage requirements make the device eminently suitable for use in low-voltage low-power portable digital audio equipment which incorporates a playback function.

The UDA1334ATS supports the I²S-bus data format with word lengths of up to 24 bits and the LSB-justified serial data format with word lengths of 16, 20 and 24 bits.

The UDA1334ATS has basic features such as de-emphasis (44.1 kHz sampling frequency, only supported in audio mode) and mute.

sot369-1_3d
General
  • 2.4 to 3.6 V power supply voltage
  • On-board PLL to generate the internal system clock: Operates as an asynchronous DAC, regenerating the internal clock from the WS signal (called audio mode) Generates audio related system clock (output) based on 32, 48 or 96 kHz sampling frequency (called video mode).
  • Integrated digital filter plus DAC
  • Supports sample frequencies from 16 to 100 kHz in asynchronous DAC mode
  • No analog post filtering required for DAC
  • Easy application
  • SSOP16 package.
Multiple format data interface
  • I²S-bus and LSB-justified format compatible
  • 1fs input data rate.
DAC digital features
  • Digital de-emphasis for 44.1 kHz sampling frequency
  • Mute function.
Advanced audio configuration
  • High linearity, wide dynamic range and low distortion.
PLL system clock generation
  • Integrated low jitter PLL for use in applications in which there is digital audio data present but the system cannot provide an audio related system clock. This mode is called audio mode.
  • The PLL can generate 256 X 48 kHz and 384 X 48 kHz from a 27 MHz input clock. This mode is called video mode.

This audio DAC is excellently suitable for digital audio portable application, specially in applications in which an audio related system clock is not present.

Data Sheets (1)
Name/DescriptionModified Date
Low power audio DAC with PLL (REV 2.1) PDF (162.0 kB) UDA1334ATS18 May 2010
Package Information (1)
Name/DescriptionModified Date
plastic shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (304.0 kB) SOT369-108 Feb 2016
Supporting Information (2)
Name/DescriptionModified Date
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE08 Oct 2009
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
UDA1334ATS/N2SOT369-1SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveUDA1334ATS/N2,118 (9352 668 39118)Standard MarkingUDA1334ATS/N2week 44, 200411
Bulk PackActiveUDA1334ATS/N2,112 (9352 668 39112)Standard MarkingUDA1334ATS/N2week 44, 200411
Low power audio DAC with PLL UDA1334ATS
plastic shrink small outline package; 16 leads; body width 4.4 mm UDA1334BTS
Footprint for reflow soldering 74HC_T_595_Q100
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
UDA1334BTS