STA320 Datasheet, PDF (1/37 Pages) STMicroelectronics – 2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM

STA320
2.1 MULTICHANNELS DIGITAL AUDIO
PROCESSOR WITH DDX™
1 FEATURES
■ 2.1 Channels of 24-bit DDX^TM
■ >100dB SNR and Dynamic Range
■ Selectable 32kHz-192kHz Input Sample Rates
■ I²C control with Selectable Device Address
■ Digital Gain/Attenuation +48dB to -90dB in
0.5dB steps
■ Soft Volume Update
■ Individual Channel and Master Gain/
Attenuation
■ Dual Independent Limiters/Compressors
■ Dynamic Range Compression or Anti-Clipping
Modes
■ AutoModes^TM:
– 7 Preset Crossover filters
– 32 Preset EQ Settings
– Auto Volume Controlled Loudness
– 3 Preset Volume Curves
– 2 Preset Anti-Clipping Modes
– Preset Nighttime Listening Mode
– Preset TV AGC
■ Individual Channel and Master Soft and Hard
Mute
■ Independent Channel Volume and DSP Bypass
■ Automatic Zero-Detect Mute
■ Automatic Invalid Input Detect Mute
■ 2-Channel I²S Input Data Interface
■ Input and Output Channel Mapping
■ 4 28-bit User Programmable Biquads (EQ) per
channel
■ Bass/Treble Tone Control
■ DC Blocking Selectable High-Pass Filter
■ Selectable De-emphasis
Figure 1. Package
SO28
Table 1. Order Code
Part Number
STA320
Package
SO28
■ Post-EQ User Programmable mix
■ User Programmable 2.1 Bass Management
■ Sub Channel Mix into Left and Right Channels
■ Advanced AM Interference Frequency
Switching and Noise Suppression Modes
■ Selectable High or Low Bandwidth Noise
Shaping Topologies
■ Variable Max Power Correction for lower full-
power THD
■ 3 or 4 Output Routing Configurations
■ Selectable Clock Input Ratio
■ 96kHz Internal Processing Sample Rate, 24 to
28-bit precision
2 DESCRIPTION
The STA320 is a single chip solution for digital audio
processing and control in 2.1-channel applications. It
provides output capabilities for DDX^TM (Direct Digital
Amplification). In conjunction with a DDX^TM power
device, it provides high-quality, high-efficiency, all
digital amplification.
November 2005
This is preliminary information on a new product now in development. Details are subject to change without notice.
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