These devices are designated as MasterHIFI audio products for meeting Cirrus Logic’s highest standard in high-fidelity audio playback. These CS43198 are available in a 40-pin QFN or 42-ball WLCSP packages. A seamless transition between the DSD and PCM playback paths result from volume matching of the analog output levels and channel mixing. A patented on-chip DirectStream Digital™ (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. The filtering options include low group delay with pseudo-linear phase and a fast or slow roll-off. The proprietary digital-interpolation filters support five selectable digital filter responses to minimize pre-echos and ringing artifacts. The CS43198 devices feature a high impedance of 600 Ω, a 130 dBA dynamic range, a THD+N rating of -115 dB, and inter-channel isolation of greater than 110 dB. These ICs minimize board space requirements while enabling performance and features to drive design differentiation. Cirrus Logic's CS43198 are low power audio DACs that provide a superior system-level audio performance without draining the battery life.
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