General
• Low power consumption
• Power supply voltage from 2.7 to 5.5 V
• Selectable control via L3 microcontroller interface or via
static pin control
• System clock frequencies of 256fs, 384fs and 512fs
selectable via L3 interface or 256fs and 384fs via static
pin control
• Supports sampling frequencies (fs) from 8 to 55 kHz
• Integrated digital filter plus non inverting
Digital-to-Analog Converter (DAC)
• No analog post filtering required for DAC
• Slave mode only applications
• Easy application
• Small package size (SSOP16)
• TTL tolerant input pads
• Pin and function compatible with the UDA1320ATS.
Multiple format input interface
• L3 mode: I2S-bus, MSB-justified or LSB-justified
16, 18 and 20 bits format compatible
• Static pin mode: I2S-bus and LSB-justified
16, 18 and 20 bits format compatible
• 1fs input format data rate.
DAC digital sound processing
• Digital logarithmic volume control in L3 mode
• Digital de-emphasis for 32, 44.1 and 48 kHz sampling
frequencies in L3 mode or 44.1 kHz sampling frequency
in static pin mode
• Soft mute control both in static pin mode and L3 mode.
Advanced audio configuration
• Stereo line output (volume control in L3 mode)
• High linearity, wide dynamic range and low distortion.
APPLICATIONS
• PC audio applications
• Car radio applications.
GENERAL DESCRIPTION
The UDA1330ATS is a single-chip stereo DAC employing
bitstream conversion techniques.
The UDA1330ATS supports the I2S-bus data format with
word lengths of up to 20 bits, the MSB-justified data format
with word lengths of up to 20 bits and the LSB-justified
serial data format with word lengths of 16, 18 and 20 bits.
The UDA1330ATS can be used in two modes: L3 mode or
the static pin mode.
In the L3 mode, all digital sound processing features must
be controlled via the L3 interface, including the selection of
the system clock setting.
In the two static modes, the UDA1330ATS can be
operated in the 256fs and 384fs system clock mode.
Muting, de-emphasis for 44.1 kHz and four digital input
formats (I2S-bus or LSB-justified 16, 18, and 20 bits) can
be selected via static pins. The L3 interface cannot be
used in this application mode, so volume control is not
available in this mode.
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