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STMicroelectronics Electronic Components Datasheet

STA309A Datasheet

Multi-channel digital audio processor

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STA309A
Multi-channel digital audio processor with DDX®
Features
„ 8 channels of 24-bit DDX® (direct digital
amplification)
„ >100 dB of 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
„ Automode™:
– 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
– 8 preset crossover filters
„ Individual channel and master soft/hard mute
„ Automatic zero-detect and invalid input mute
„ Automatic invalid input detect mute
„ Advanced PopFree operation
TQFP64
„ 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/DDX® channel
„ DC blocking selectable high-pass filter
„ Selectable per-channel DDX® damped ternary
or binary PWM output
„ Max power correction for lower full-power THD
„ Variable per channel DDX® 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®. 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.
Table 1. Device summary
Order code
Package
STA309A
TQFP64
STA309A13TR
TQFP64
October 2009
Doc ID 13855 Rev 4
1/67
www.st.com
67


STMicroelectronics Electronic Components Datasheet

STA309A Datasheet

Multi-channel digital audio processor

No Preview Available !

Contents
Contents
STA309A
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Recommended operating condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 I2C bus operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1.1 Data transition or change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1.2 Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1.3 Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1.4 Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.1 Byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.2 Multi-byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Application reference schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 Register summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2 Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2.1 Configuration register A (0x00) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2.2 Configuration register B (0x01) - serial input formats . . . . . . . . . . . . . . 24
7.2.3 Configuration register C (0x02) - serial output formats . . . . . . . . . . . . . 26
7.2.4 Configuration register D (0x03) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.5 Configuration register E (0x04) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.2.6 Configuration register F (0x05) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2/67 Doc ID 13855 Rev 4


Part Number STA309A
Description Multi-channel digital audio processor
Maker STMicroelectronics
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STA309A Datasheet PDF






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