STA309A：Multi-channel digital audio processor with DDX®
The STA309A is a single chip solution for digital audio processing and control in multi-channel applications. It provides output capabilities for DDX®. In conjunction with a DDX® power device, the STA309A provides high-quality, high-efficiency, all digital amplification. The device is extremely versatile, allowing inputs of most digital formats including 6.1/7.1-channel and 192 kHz, 24-bit DVD-audio, DSD/SACD. In 5.1 applications the additional 2 channels can be used for audio line-out or headphone drive. In speaker mode, with 8 channel outputs in parallel, the STA309A can deliver more than 1 W.
Key Features
- Pre and post EQ full 8-channel input mix on all 8 channels
- Bass/treble tone control
- Dynamic range compression
- Dual independent limiters/compressors
- Individual channel and master soft/hard mute
- Automode:5-band graphic EQ32 preset EQ curves (rock, jazz, pop, etc.)Automatic volume controlled loudness5.1 to 2-channel downmixSimultaneous 5.1- and 2-channel downmix outputs3 preset volume curves2 preset anti-clipping modesPreset movie nighttime listening modePreset TV channel/commercial AGC mode5.1, 2.1 bass management configurations8 preset crossover filters
- Automatic invalid input detect mute
- Automatic zero-detect and invalid input mute
- Advanced PopFree operation
- I2
S output channel mapping function
- Advanced AM interference frequency switching and noise suppression modes
- Channel mapping of any input to any processing/DDX®
channel
- Independent channel volume and DSP bypass
- Selectable per-channel DDX®
damped ternary or binary PWM output
- DC blocking selectable high-pass filter
- Variable per channel DDX®
output delay control
- Max power correction for lower full-power THD
- 192 kHz internal processing sample rate, 24-bit to 36-bit precision
- Individual channel and master gain/attenuation plus channel trim (-10 dB to +10 dB)
- Soft volume update
- 8 channels of 24-bit DDX®
(direct digital amplification)
- Selectable 32 kHz - 192 kHz input sample rates
- >100 dB of SNR and dynamic range
- Digital gain/attenuation +58 dB to -100 dB in 0.5-dB steps
- Up to 10 independent 32-bit user programmable biquads (EQ) per channel
- 6 channels of DSD/SACD input
Product Specifications
Application Notes
User Manuals
Brochures
Sample & Buy
| Part Number | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STA309A13TR | LQFP 64 10x10x1.4 | Tape And Reel | - | - | 3 | 1000 | NEC | EAR99 | MALAYSIA |
Quality & Reliability
