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The CS44211 is a complete, stereo, digital-to-PWM, digital power, audio amplifier system controller including interpolation, volume control, and PWM driver outputs, in a 24-pin TSSOP package. The CS44211 architecture uses a direct-to-digital approach that maintains digital signal integrity to the final output filter. This minimizes analog interference effects that can negatively affect system performance. The CS44211 contains on-chip digital bass and treble boost, peak signal limiting, and de-emphasis. The PWM amplifier can achieve greater than 90% efficiency. This efficiency leads to longer battery life for portable systems, smaller device package, less heat sink requirements, and smaller power supplies. The CS44211 provides all the controls necessary to drive higher voltage output stages for increased power levels. The CS44211 is ideal for integrated, multi-function systems such as shelf-top audio systems, audio mini systems, audio video receivers (AVR), boom boxes, and powered speakers.
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- Up to 99 dB dynamic range
- Sample rates up to 96 kHz
- Digital tone control
- 3 selectable HPF and LPF corner frequencies
- 12 dB boost for bass and treble - 1 dB step size
- Programmable digital volume control
- 18 to -96 dB in 1 dB steps
- Peak signal soft limiting
- De-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
- Selectable outputs for each channel including
- Channel A: R, L, mono (L + R) / 2, mute
- Channel B: R, L, mono (L + R) / 2, mute
- Chipset includes HEXFET® power MOSFETs with gate driver IC from International Rectifier®. These two chips are specially optimized for use with the CS44211
- Fast and soft recovery body diode to minimize THD
- Gate driver IC for fast switching and low power losses
- Digital power anti-pop technology
- 2.4 to 5V supply
- Package: 24-pin TSSOP
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