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At the heart of this Class D amplifier reference design is the CS44600 digital amplifier controller and the new CS44130 quad power stage IC. The CS44130 is packaged in a thermally enhanced QFN (9mm x 9mm) package, eliminating the need for expensive and bulky heat sink designs. This reference design greatly simplifies product design and enables high-power stereo amplifiers in less than 3 square inches of PCB space, making it ideal for high-quality audio design in small form factor consumer electronics, including digital TV, home theater systems, and shelves. System, desktop speakers, computer sound card and network audio system.
The CS44130's four amplifiers provide up to 60W of power while featuring high thermal gain self-protection. The output can be configured as 4 half bridge channels, 2 full bridge channels, or 1 parallel full bridge channel.
The CS44130 has a system-level dynamic range of 105dB with excellent distortion performance. The product's power stage input logic accepts 2.5V, 3.3V, and 5V control signals and works with other integrated PWM modulators in digital TV and audio/video decoder system processors.
Cirrus Logic's PopGuard(tm) technology suppresses noise during system startup and reduces a large external DC blocking capacitor in each channel. The IC's complementary output stage does not require on-chip charge boosting, which can further reduce external components and reduce electromagnetic interference (EMI) that affects audio quality.
The CS44600 digital controller IC uses patented power-suppression feedback technology to enable single-ended output while also reducing power supply noise that affects sound quality. Its integrated sample rate converter reduces clock jitter and ensures high quality audio and superior performance.
Class D digital audio systems help achieve smaller, lighter, and more efficient products while also consuming less power than traditional, bulky analog amplifiers. Cirrus Logic's Class D amplifiers deliver 90% efficiency, providing manufacturers with a high-quality audio and low-cost solution to help customers better meet the needs of today's consumer electronics market.