AD1953YSTZ: SigmaDSPTM Digital Audio Processor LQFP-48封装
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 StereoTM 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)
价格与供货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.
产品应用领域 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)
AD1953YSTZ 特点
- 5 V 3-Channel Audio DAC System
- Digital Audio Output (2-Channel or 6-Channel Packed Mode)
- Accepts Sample Rates up to 48 kHz
- 7 Biquad Filter Sections per Channel
- Dual Dynamic Processor with Arbitrary Input/Output
- Curve and Adjustable Time Constants
- 0 ms to 6 ms Variable Delay/Channel for Speaker Alignment
- See data sheet for additional features
AD1953YSTZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD1953YSTZ | 量产 | 48 ld LQFP | 48 | 汽车级 |
| AD1953YSTZRL | 量产 | 48 ld LQFP | 48 | 汽车级 |
| AD1953YSTZRL7 | 量产 | 48 ld LQFP | 48 | 汽车级 |