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Datasheet

UDA1338H
(Product Specification)
16-Feb-05, 54 pages, 270 kB

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General description

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

    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 x stereo) with programmable gain amplifiers
    • 1 single-ended voice input
  • Outputs:
    • 6 differential audio outputs (3 x 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

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
UDA1338H/N1UDA1338HB-T9352 689 45518Volume productionSOT307-2
(QFP44)
Reel Dry Pack, SMD, 13"Standard MarkingUDA1338H/N1
week 42, 2004
UDA1338H/N1UDA1338HB9352 689 45557Volume productionSOT307-2
(QFP44)
Tray Dry Pack, Bakeable, MultipleStandard MarkingUDA1338H/N1
week 42, 2004

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
UDA1338H/N19352 689  45518        Order samples
UDA1338H/N19352 689  45557  NADIGI-KEY CORPORATION16110/9/2008 Buy online not available

Applications

  • Excellently suitable for multichannel home audio-video application

Block diagrams/pinning

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