UDA1345TS: Economy audio CODEC ARCHIVED

General

• Low power consumption
• 2.4 to 3.6 V power supply range with 3.0 V typical
• 5 V tolerant TTL compatible digital inputs
• 256, 384 and 512f_s system clock
• Supports sampling frequencies from 8 to 100 kHz
• Noninverting ADC plus integrated high-pass filter to cancel DC offset
• The ADC supports 2 V (RMS) input signals
• Overload detector for easy record level control
• Separate power control for ADC and DAC
• Integrated digital interpolation filter plus noninverting DAC
• Functions controllable either by L3 microcontroller interface or via static pins
• The UDA1345TS is pin and function compatible with the UDA1344TS
• Small package size (SSOP28)

Multiple format input interfaces

• I²S-bus, MSB-justified up to 24 bits and LSB-justified 16, 18 and 20 bits format compatible
• Three combined data formats with MSB data output and LSB 16, 18 and 20 bits data input
• 1f_s input and output format data rate

DAC digital sound processing

The sound processing features of the UDA1345TS can only be used in L3 microcontroller mode:

• Digital dB-linear volume control (low microcontroller load) via L3 microcontroller with 1 dB steps
• Digital de-emphasis for 32, 44.1 and 48 kHz
• Soft mute via cosine roll-off (in 1024 samples)

Note: in contrast to the UDA1344TS, the UDA1345TS does not have bass-boost and treble

Advanced audio configuration

• Stereo single-ended input configuration
• Stereo line output (under microcontroller volume control), no post filter required
• High linearity, dynamic range, and low distortion