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24-bit Sigma Delta Stereo Audio DAC in TSMC 28nm
DA24SD28HPC is a complete low-cost stereo digital to analog converter for audio applications. The DAC comprises of digital interpolating filters, a third order single loop multibitbit sigmadelta DAC, followed by a continuous time reconstruction filter. It has a single ended analog output. The device is fabricated on TSMC 28HPC process where high speed precision analog circuits are combined with high density logic circuits.
Features
- 24-bit stereo audio DAC
- Audio interface is serial i2s
- Sampling frequency 48KHz
- 1.8V/1.1V analog/digital power supply
- Dynamic range :96dB
- Total harmonic distortion +Noise: -85dB
- I2S digital audio interface
- Very low power consumption
- Soft power up/down mode
- Ultra-low area
- -40degC to +125degC operating temperature range
- Stopband attenuation greater than 65dB
- Passband ripple less than 0.04dB
- Linear phase digital filtering
- Zero phase error between channels
- Low clock jitter sensitivity
- Analog filter: continuous time
Benefits
- Ultra-low power Audio
- industry best Schreier FOM
Deliverables
- Datasheet
- Hard Macro (GDSII)
- Characterisation Report (as applicable)
- Abstract View (LEF)
- Integration and Customer Support
Applications
- Portable audio players
- Multimedia phones
- Digital cameras
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