UDA1338H

Multichannel audio coder-decoder


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The UDA1338H is a single-chip consisting of 4 plus 1 analog-to-digital converters and 6 digital-to-analog converters with signal processing features employing bitstream conversion techniques. The multichannel configuration makes the device eminently suitable for use in digital audio equipment which incorporates surround feature.

The UDA1338H supports conventional 2 channels per line data transfer conformable to the I2S-bus format with word lengths of up to 24 bits, the MSB-justified format with word lengths of up to 24 bits and the LSB-justified format with word lengths of 16 bits, 20 bits and 24 bits, as well as 4 to 6 channels per line transfer mode. The device also supports a combination of the MSB-justified output format and the LSB-justified input format. The UDA1338H has special sound processing features in the Direct Stream Digital (DSD) playback mode, de-emphasis, volume and mute which can be controlled via the L3-bus or I²C-bus interface.

Features and benefits

2.1 General

  • 2.7 V to 3.6 V power supply
  • 5 V tolerant digital inputs
  • 24-bit data path
  • Selectable control: via L3-bus or I²C-bus microcontroller interface
  • Supports sample frequency ranges for:
    • Audio ADC: fs = 16 kHz to 100 kHz
    • Voice ADC: fs = 7 kHz to 50 kHz
    • Audio DAC: fs = 16 kHz to 200 kHz
  • Separate power control for ADC and DAC
  • ADC plus integrated high-pass filter to cancel DC offset
  • Integrated digital filter plus DAC
  • Slave mode only applications
  • Easy application

Multiple format data interface

  • Audio interface supports standard I2S-bus, MSB-justified, LSB-justified and two multichannel formats
  • Voice interface supports I2S-bus and mono channel formats

Digital sound processing

  • Control via L3-bus or I²C-bus:
  • Channel independent digital logarithmic volume
  • Digital de-emphasis for fs = 32 kHz, 44.1 kHz, 48 kHz or 96 kHz
  • Soft or quick mute
  • Output signal polarity control

Advanced audio configuration

  • Inputs:
    • 4 single-ended audio inputs (2 × stereo) with programmable gain amplifiers
    • 1 single-ended voice input
  • Outputs:
    • 6 differential audio outputs (3 × stereo)
  • DSD mode to support stereo DSD playback
  • High linearity, wide dynamic range and low distortion
  • DAC digital filter with selectable sharp or soft roll-off

Applications

  • Excellently suitable for multichannel home audio-video application
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: UDA1338H
Block diagram: UDA1338H

Parametrics of this product

Type numberPackagePackage nameProduct statusProduct descriptionInput formatsOutput formatsControl InterfaceVP [min - max](V)T[min] - [max](&)Resolution [max](8451;)Sampling rate [min] - [max](Bits)Power dissipation [Typ](kHz)ADC SNR [Typ](mW)DAC SNR [Typ](dB)
UDA1338HSOT307-2
(QFP44)		QFP44Production4x audio ADC, 1x voice ADC (mic input), 6x audio DAC, with basic audio processingAnalog, I2SAnalog, I2SI2C, L32.7 - 3.6-20 - +8524ADC: 7 - 100, DAC: 16 - 200150100114

Similar products

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
UDA1338H/N1UDA1338H/N1,5189352 689 45518Volume productionSOT307-2
(QFP44) 		Reel Dry Pack, SMD, 13"Standard Marking
UDA1338H/N1UDA1338H/N1,5579352 689 45557Volume productionSOT307-2
(QFP44) 		Tray Dry Pack, Bakeable, MultipleStandard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
UDA1338H/N1UDA1338H/N1,518UDA1338H/N1week 42, 200423
UDA1338H/N1UDA1338H/N1,557UDA1338H/N1week 42, 200423
Quality and reliability disclaimer

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Documentation for this product

TypeFormatTitleDate
Data sheetpdfMultichannel audio coder-decoder (v.4.0)2010-05-18

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
UDA1338H/N19352 689 45518UDA1338H/N1,518JAPANCHIP ONE STOPno05/14/2012Buy onlinenot available
UDA1338H/N19352 689 45557UDA1338H/N1,557NAAVNET EXPRESS3205/24/2012Buy online 
   JAPANCHIP ONE STOPno05/14/2012Buy online 

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