STA323WTR 查看數據表（PDF） - STMicroelectronics

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STA323WTR

2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM

STMicroelectronics 

STA323W

1 FEATURES

■ Wide supply voltage range (10-36V)

■ 3 Power Output Configurations

– 2x10W + 1x20W

– 2x20W

– 1x40W

■ Power SO-36 Slug Down Package

■ 2.1 Channels of 24-Bit DDX®

■ 100dB SNR and Dynamic Range

■ 32kHz to 192kHz Input Sample Rates

■ Digital Gain/Attenuation +48dB to -80dB in

0.5dB steps

■ 4 x 28-bit User Programmable Biquads (EQ) per

Channel

■ I2C Control

■ 2-Channel I2S Input Data Interface

■ Individual Channel and Master Gain/

Attenuation

■ Individual Channel and Master Soft and Hard

Mute

■ Individual Channel Volume and EQ Bypass

■ Bass/Treble Tone Control

■ Dual Independent Programmable Limiters/

Compressors

■ Automodes™

– 32 Preset EQ Curves

– 15 Preset Crossover Settings

– Auto Volume Controlled Loudness

– 3 Preset Volume Curves

– 2 Preset Anti-Clipping Modes

– Preset Nighttime Listening Mode

– Preset TV AGC

■ Input and Output Channel Mapping

■ AM Noise Reduction and PWM Frequency

Shifting Modes

■ Soft Volume Update and Muting

■ Auto Zero Detect and Invalid Input Detect

Muting Selectable DDX® Ternary or Binary

2.1 HIGH EFFICIENCY

DIGITAL AUDIO SYSTEM

TARGET SPECIFICATION

Figure 1. Package

PowerSO36 SLUG DOWN

Table 1. Order Codes

Part Number

STA323W

STA323WTR

Package

PowerSO36 (Slug Down)

Tape & Reel

PWM output + Variable PWM Speeds

■ Selectable De-emphasis

■ Post-EQ User Programmable Mix with default

2.1 Bass Management settings

■ Variable Max Power Correction for lower full-

power THD

■ 4 Output Routing Configurations

■ Selectable Clock Input Ratio

■ 96kHz Internal Processing Sample Rate, 24 to

28-bit precision

■ QXpander

■ Video Application: 576 fs input mode suporting

2 DESCRIPTION

The STA323W is an integrated solution of digital

audio processing, digital amplifier control, and

DDX-Power Output Stage, thereby creating a

high-power single-chip DDX® solution comprising

of high-quality, high-efficiency, all digital amplifica-

tion.

The STA323W power section consists of four in-

dependent half-bridges. These can be configured

via digital control to operate in different modes. 2.1

channels can be provided by two half-bridges and

a single full-bridge, providing up to 2x10W +

1x20W of power output. 2 Channels can be provid-

ed by two full-bridges, providing up to 2x20W of

power. The IC can also be configured as a single

paralelled full-bridge capable of high-current oper-

ation and 1x40W output.

Also provided in the STA323W are a full assort-

January 2005

REV. 1

1/41

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

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