Cirrus Logic unveils 2 new stereo codecs

These products give design engineers a cost-effective, high-performance solution for a wide variety of high-end audio applications such as multitrack recording systems, effects processors, digitalmixing consoles, automotive audio systems, digital video recorders and other emerging digital entertainment markets.

The CS4272 and CS4271 integrate an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) into a single-chip solution, thereby providing cost-efficiency and system simplification as well as reduced space requirements in board designs. Because both chips share a common footprint, designers can interchange their designs with either solution to vary end-product performance, reduce development costs and accelerate time to market.

“We had two objectives in mind when designing these new codecs,” said Jason Rhode, director of marketing, Mixed Signal Products, Cirrus. “First was to develop the highest performing chips in the market with superior dynamic range and distortion characteristics. The second goal was to offer designers a simplified, cost-reduced solution that accelerates the product’s time to market. In accomplishing both goals, we believe we have positioned Cirrus to lead in this market category.”

The CS4272 and CS4271 offer the highest analog performance versus competing market solutions and provide excellent sound quality. The CS4272 delivers dynamic range of 114 dB and –100 dB THD+N for both the ADC and DAC. The CS4271 employs a single-ended input architecture versus the differential inputs employed by the CS4272, thereby achieving 108 dB dynamic range on the ADC while maintaining 114 dB performance on the DAC. Both products are offered in a low-profile 28-pin TSSOP package; they feature 24-bit conversion and support all standard audio sample rates up to 192 kHz, making them DVD-Audio ready.

Both solutions operate from a 5V power supply and offer manufacturers the ultimate system flexibility with an on-chip oscillator, output volume control with soft ramp and zero crossing, selectable digital filter response and integrated level shifters for direct interface to logic levels from 2.5V to 5V.

Pricing and Availability

The CS4272 and CS4271 are currently in production. The CS4272 is priced at $5.57 in 10,000 quantities, and the CS4271 is priced at $4.87 in 10,000 quantities.

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