Audio D/A Converter with MasterHIFI
The CS43198 is a next generation, low power audio DAC that provides a superior system-level audio performance without draining battery life. This IC minimizes board space requirements while enabling performance and features to drive design differentiation. The CS43198 features a high impedance of 600 Ω, a 130 dBA dynamic range, a THD+N rating of -115 dB, and inter channel isolation of >110 dB. To minimize pre-echos and ringing artifacts, the CS43198 is designed with proprietary digital-interpolation filters that support five selectable digital filter responses. Filtering options include low group delay with pseudo-linear phase and a fast or slow roll-off. A patented on-chip DSD processor supports up to DSD256 in direct mode to preserve audio integrity by providing non-decimating volume control with soft ramp, and 50 kHz filtering as recommended by Scarlet Book. Volume matching of the analog output levels and channel mixing enable a seamless transition between the DSD and PCM playback paths. The CS43198 is available in a 40-pin QFN or a 42-ball WLCSP packages.
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Technology
Features
- CS43198 is the evolution of the CS4399. Re-defining Audio again
- Improved output level up to 2 VRMS
- Evolved performance: THD+N increased from -108 dB to -115 dB
- Increased hi-fi DSD playback rate from DSD128 to DSD256
- Advanced 32-bit oversampled multi-bit modulator with mismatch shaping technology
- Eliminates distortion due to on-chip component mismatch
- Supports up to 384 kHz sampling frequency
- Low clock jitter sensitivity
- Auto mute detection
- Serial audio input
- I²S, right-justified, left-justified, DoP, DSD and TDM interface
- Main or secondary operation
- Volume control with 0.5 dB step size and soft ramp
- 44.1 kHz de-emphasis and inverting feature
- Patented dedicated DSD processor featuring high resolution audio format support
- DirectStream Digital™ (DSD)
- DSD over PCM (DSD DoP), up to DSD256
- Handles switching between DSD and PCM audio streams, matching the analog audio output level
- Integrated PLL
- Reference clock sourced from MCLK pin
- System clock output
- 1 MHz I²C and hardware mode control
Parametric Specifications
| Channel(s) Out | 2 |
| Resolution (bits) | 32 |
| Dynamic Range (dB) | 130 |
| THD+N (dB) | -115 |
| Sample Rate (kHz) | 384 |
| Analog Power Supply (V) | 1.8 |
| Digital Power Supply (V) | 1.8 |
| Operational Power Consumption (mW) | 26 |
| Output Level (Vrms) | 2 |
| Package | 40 QFN; 42 WLCSP |
MasterHIFI
For more information about Cirrus Logic's Hi-Fi product line, visit the Hi-Fi Audio page.
