Date: 13/07/2010

24-bit DAC with integrated stereo line driver from Cirrus for home audio applications

Cirrus Logic has introduced the CS4354, a 24-bit digital-to-analog converter (DAC) with integrated stereo line drivers. This is Cirrus's fourth-generation audio DAC with ground-centered 2VRMS line drivers and is targeting consumer home audio applications, such as video game consoles, Blu-ray Disc and DVD systems, TVs, set-top boxes and digital media players. According to Cirrus this DAC converter has made significant progress in simplifying the design of analog output circuitry by reducing the need for multiple system components, which saves system cost and board space.

Some of the key features of the CS4354 are:
1. CS4354 utilizes an on-chip charge pump to generate a negative supply and outputs a ground- centered, 2VRMS filtered line level signal from a single 5 V supply.
2. Cirrus says that this architecture provides improved low-frequency response and audio quality and eliminates the requirement of DC blocking capacitors, mute and pop suppression circuits and high voltage power supply.
3. Supports 24-bit conversion and automatic detection of audio sampling rates up to 192 kHz.
4. Based on a fifth-order multibit Delta Sigma converter architecture with low latency digital filtering.
5. Provides 101 dB dynamic range and -86 dB THD+N with excellent out-of-band noise performance.
6. Powered from a single, +5V supply, supports direct interface to logic levels from +1.5V to +5V and consumes only 50mW of power during operation.
7. CS4354 also consists of a power-on-reset circuit

"The CS4354 has 40 percent fewer pins and requires six fewer external capacitors than our third generation DAC in this product category," said Carl Alberty, director of Marketing, Cirrus Logic's Mixed Signal Audio Division. "We are excited to be delivering smaller and more cost effective DAC solutions to our customers without sacrificing the performance they have come to expect from Cirrus audio products."

Package: 14-pin SOIC

Price: priced at US$0.81 in quantities of 10,000.

Availability: Now

For more information visit: http://www.cirrus.com