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STA308 Datasheet

  • STA308

  • MULTICHANNEL DIGITAL AUDIO PROCESSOR WITH DDX⑩

  • 259.49KB

  • 33頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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STA308
MULTICHANNEL DIGITAL AUDIO PROCESSOR WITH DDX鈩?/div>
PRODUCT PREVIEW
s
s
8 DDX
TM
Channels Capability (24 bit)
From 32kHz to 192kHz Input Sample Rates
Supported
Volume Control from 0 to -100dB (0.5 dB steps)
Variable Digital Gain from 0 to 24dB (0.5dB
steps) with Digital Limiter Functionality and
Variable Attack and Release Time
I2S Inputs and Outputs
Individual Channel and Master Gain/
Attenuation
Individual Channel Mute and Zero Input Detect
Auto-Mute
Selectable Serial Audio Data Interface
Bass/Treble Controls
Channel Mapping of any Input to any
Processing/DDX
TM
Channel
Active Crossover Capability
DC Blocking Selectable High-Pass Filter
Selectable Bass Management on Channel 6
Selectable Adjacent Channel Mixing Capability
Selectable DDX
TM
Headphone Output on
Channels 7 & 8
Selectable Clock Input Ratio
Selectable De-emphasis
Selectable DDX
TM
Ternary, or Binary PWM
output
AM Interference Reduction Mode
I2C Control
DESCRIPTION
The STA308 is a single chip solution for digital audio
processing and control in multi-channel applications.
It provides output capabilities for DDX
TM
(Direct Digi-
tal Amplification). In conjunction with a DDX
TM
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
channel and 192kHz, 24-bit DVD-Audio.
The internal 24-bit DSP allows for high resolution
processing at all standard input sample frequencies.
Processing includes volume control, filtering, bass
management, gain compression/limiting and PCM
and DDX
TM
outputs. Filtering includes five user-pro-
grammable 28-bit biquads for EQ per channel, as
well as bass, treble and DC blocking. External clock-
ing can be provided at 4 different ratios of the input
sample frequency. All sample frequencies are up-
sampled for processing. Each internal processing
channel can receive any input channel, allowing flex-
ibility and the ability to perform active digital cross-
over for powered loudspeaker systems.
The serial audio data interface accepts many differ-
ent formats, including the popular I2S format. Eight
channels of DDX processing are performed.
TQFP64
ORDERING NUMBER: STA308
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December 2002
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
1/33

STA308 產(chǎn)品屬性

  • 160

  • 集成電路 (IC)

  • 線性 - 音頻處理

  • DDX™

  • 音頻處理器

  • 數(shù)字音頻

  • 表面貼裝

  • 64-LQFP

  • 64-TQFP（10x10）

  • 托盤

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