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The CS43L43 is a complete stereo digital-to-analog (D/A) output system including interpolation, 1-bit D/A conversion, analog filtering, volume control, and a headphone amplifier. The CS43L43 is based on Delta-Sigma modulation, by which the modulator output controls the reference voltage input to an ultra-linear analog low-pass filter. This architecture allows infinite adjustment of the sample rate between 2 kHz and 100 kHz simply by changing the master-clock frequency. As part of this complete system, the CS43L43 contains on-chip digital bass and treble boost, peak signal limiting, and de-emphasis. The headphone amplifier provides up to 25 mWrms power output into 16 Ω load; 25 dB analog attenuation and mute; and zero crossing click-free level transitions. The CS43L43 operates from a 1.8 V to 3.3 V supply and consumes only 16 mW of power with a 1.8 V supply. These features are ideal for portable CD, MP3, and minidisc players, and other portable playback systems that require extremely low power consumption. |
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| Status: Not Recommended for New Designs |
The CS43L43 is a complete stereo digital-to-analog (D/A) output system including interpolation, 1-bit D/A conversion, analog filtering, volume control, and a headphone amplifier.
The CS43L43 is based on Delta-Sigma modulation, by which the modulator output controls the reference voltage input to an ultra-linear analog low-pass filter. This architecture allows infinite adjustment of the sample rate between 2 kHz and 100 kHz simply by changing the master-clock frequency.
As part of this complete system, the CS43L43 contains on-chip digital bass and treble boost, peak signal limiting, and de-emphasis. The headphone amplifier provides up to 25 mWrms power output into 16 Ω load; 25 dB analog attenuation and mute; and zero crossing click-free level transitions.
The CS43L43 operates from a 1.8 V to 3.3 V supply and consumes only 16 mW of power with a 1.8 V supply. These features are ideal for portable CD, MP3, and minidisc players, and other portable playback systems that require extremely low power consumption.
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