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STA309A_07 Datasheet

  • STA309A_07

  • Multi-channel digital audio processor with DDX

  • 67頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STA309A
Multi-channel digital audio processor with DDX廬
Features
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8 channels of 24-bit DDX
廬
>100 dB SNR and dynamic range
Selectable 32 kHz - 192 kHz input sample rates
6 channels of DSD/SACD input
Digital gain/attenuation +58 dB to -100 dB in
0.5 dB steps
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:
鈥?5-band graphic EQ
鈥?32 preset EQ curves (rock, jazz, pop, etc.)
鈥?Automatic volume controlled loudness
鈥?5.1 to 2-channel downmix
鈥?Simultaneous 5.1- and 2-channel downmix
outputs
鈥?3 preset volume curves
鈥?2 preset anti-clipping modes
鈥?Preset movie nighttime listening mode
鈥?Preset TV channel/commercial AGC mode
鈥?5.1, 2.1 bass management configurations
鈥?AM frequency automatic output PWM
frequency shifting
鈥?8 preset crossover filters
Individual channel and master soft/hard mute
Automatic zero-detect and invalid input mute
Automatic invalid input detect mute
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TQFP64
Advanced PopFree operation
Advanced AM interference frequency
switching and noise suppression modes
I
2
S output channel mapping function
Independent channel volume and DSP bypass
Channel mapping of any input to any
processing/DDX
廬
channel
DC blocking selectable high-pass filter
Selectable per-channel DDX
廬
damped ternary
or binary PWM output
Max power correction for lower full-power THD
Variable per channel DDX
廬
output delay control
192 kHz internal processing sample rate, 24-bit
to 36-bit precision
Description
The STA309A is a single chip solution for digital
audio processing and control in multi-channel
applications. It provides output capabilities for
DDX
廬
(direct digital amplification). In conjunction
with a DDX
廬
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. In 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 STA309A can
deliver more than 1 W.
Table 1.
Device summary
Package
TQFP64
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Order code
STA309A
September 2007
Rev 1
1/67
www.st.com
67

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