AD1953
LAST TIME BUYSigmaDSP® Digital Audio Processor
Part Details
- 5 V 3-Channel Audio DAC System
- Digital Audio Output (2-Channel or 6-Channel Packed Mode)
- Accepts Sample Rates up to 48 kHz
- Dual Dynamic Processor with Arbitrary Input/Output
- 7 Biquad Filter Sections per Channel
- Curve and Adjustable Time Constants
- 0 ms to 6 ms Variable Delay/Channel for Speaker Alignment
- See data sheet for additional features
The AD1953 is a complete, 26-bit, single-chip, 3-channel digital audio playback system with built-in DSP functionality. Key features include: 3 channels of digital audio, 6-channel TDM output mode, a 7-band, 48-bit stereo equalizer, delays for loudspeaker location adjustment, Phat Stereo™ spatial enhancement, and a dual-band, professional-quality dynamics processor. Its three DACs achieve 112 dB signal-to-noise ratio (SNR) at 48 kHz. Its dynamic processing features include:
- Finely-tuned bass boost to enhance low frequencies for small loudspeakers
- Algorithms that virtually increase loudness by removing distortion at high volumes
- Midnight mode which automatically reduces loudness in high-volume instances (e.g., sudden loud scenes on DVDs)
- Low-level expansion to lift low-volume signals above road noise (for car stereos)
PRICING AND AVAILABILITY:
The AD1953 SigmaDSP Digital Audio Processor is available in a 48-pin TQFP package and is rated for the extended −40°C to +105°C temperature range. The AD1953 is sampling now; production begins Fall 2002. Prices begin at $5.88 in 10,000-piece quantities.
APPLICATIONS
- 2.0/2.1 Channel Audio Systems (2 Main Channels Plus Subwoofer)
- Multichannel Automotive Sound Systems
- Multimedia Audio
- Mini Component Stereo
- Home Theater Systems (AC-3 Postprocessor)
- Musical Instruments
- In-Seat Sound Systems (Aircraft, Motor Coaches)
Documentation
Data Sheet 1
Application Note 2
Evaluation Design File 1
Frequently Asked Question 1
Device Drivers 1
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADAU1401A | PRODUCTION | SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs |