STA320 datasheet(1/37 Pages) STMICROELECTRONICS

部件名	STA320

功能描述	2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM

PDF	37 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STA320

November 2005

This is preliminary information on a new product now in development. Details are subject to change without notice.

1

FEATURES

■ 2.1 Channels of 24-bit DDX

TM

■ >100dB SNR and Dynamic Range

■ Selectable 32kHz-192kHz Input Sample Rates

■ I

2C 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 I

2S 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

■ 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 DDXTM (Direct Digital

Amplification). In conjunction with a DDXTM power

device, it provides high-quality, high-efficiency, all

digital amplification.

2.1 MULTICHANNELS DIGITAL AUDIO

PROCESSOR WITH DDX™

REV. 1

Figure 1. Package

Table 1. Order Code

Part Number

Package

STA320

SO28

类似零件编号 - STA320

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