产品概述
描述
The STA309B is a single-chip solution for digital audio processing and control in multichannel applications and provides output capabilities for FFX (full flexible amplification). In conjunction with an FFX power device, it provides high-quality, high-efficiency, all-digital amplification. The device is extremely versatile, allowing for input of most digital formats including 6.1/7.1-channel and 192 kHz, 24-bit DVD-audio, DSD/SACD and PDM for MEMS microphone inputs. In the 5.1 application, the additional 2 channels can be used for audio line-out or headphone drive. In speaker mode, with 8 channel outputs in parallel, the STA309B can deliver 1 W (maximum).
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所有功能
- 8 channels of 24-bit FFX®
- >100 dB SNR and dynamic range
- Selectable 32 kH-192 kHz input sampling rates
- 6 channels of DSD/SACD and PDM input
- Digital gain/attenuation +58 dB to -100 dB in 0.5 dB steps
- Advanced “pop-free” operation
- Digital “pop-free” operation for single-ended mode
- Soft volume update
- Individual channel and master gain/attenuation plus channel trim (-10 dB to +10 dB)
- Up to 10 independent 32-bit user-programmable biquads (EQ) per channel
- Bass/treble tone control
- Pre- and post-EQ full 8-channel input mix on all 8 channels
- Dual independent limiters/compressors
- Dynamic range compression or anti-clipping modes
- AutoModes
- 5-band graphic EQ
- 32 preset EQ curves (rock, jazz, pop, etc.)
- Automatic volume controlled loudness
- 5.1 to 2-channel downmix
- Simultaneous 5.1- and 2-channel downmix outputs
- 3 preset volume curves
- 2 preset anti-clipping modes
- Preset movie nighttime listening mode
- Preset TV channel/commercial AGC mode
- 5.1, 2.1 bass management configurations
- AM frequency automatic output PWM frequency shifting
- 8 preset crossover filters
- Individual channel and master soft/hard mute
- Automatic zero-detect and invalid input mute
- Automatic amplifier power-down on clock loss
- Advanced AM interference frequency switching and noise suppression modes
- I2S output channel mapping function
- Independent channel volume and DSP bypass
- Channel mapping of any input to any processing/FFX channel
- Selectable per-channel FFX damped ternary or binary PWM output
- Max power correction for lower full-power THD
- Variable per-channel FFX output delay control
- 192 kHz internal processing sampling rate, 24-bit to 36-bit precision
EDA符号、封装和3D模型
意法半导体 - STA309B
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