UDA1330ATS
Low-cost stereo filter DAC
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.

Features and benefits

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.

应用
PC audio applications
Car radio applications.