Austin, Texas Cirrus Logic Inc. claims these are the smallest stereo analog-to-digital (A/D) converters available for consumer and automotive audio applications.
The 10-pin A/D converters (CS5343 and CS5344) give OEMs the industry's smallest (less than 15-square millimeters), stereo audio A/D converters, while still delivering superior sound quality, said Jason Rhode, vice president and general manager of Mixed-Signal Audio Division, Cirrus Logic.
Applications include set-top boxes, digital televisions, DVD recorders, audio/video receivers, in-car entertainment and concierge systems and musical instruments.
Based on an advanced multibit delta-sigma architecture, the CS5343 and CS5344 operate from a single 3.3-volt or 5 V power supply and utilize a proprietary automatic mode selection to eliminate external configuration. These parts also incorporate a unique input architecture, which provides a very high input impedance of 7.5 Megohms, Rhode said.
The CS5343 and CS5344 support audio sample rates up to 108 kHz and deliver 98 dB of dynamic range and -90 dB of total harmonic distortion plus noise (THD+N).
Consuming 50 milliwatts of power, the CS5343 and CS5344 differ only in the serial audio interface format they support, with the CS5343 supporting the I2S format and the CS5344 supporting left-justified serial data format.
The CS5343 and CS5344 are available in a 10-pin, lead-free TSSOP package and are each priced at $1.35 in 10,000-piece quantities.Click here for the CS5343 and CS5344 data sheets.
Cirrus Logic, 1-800-625-4084, www.Cirrus.com.
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