參數(shù)資料
型號： STA323WTR
廠商： 意法半導(dǎo)體
英文描述： 2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM
中文描述： 2.1高效率數(shù)字音頻系統(tǒng)
文件頁數(shù)： 1/41頁
文件大?。?/td> 749K
代理商： STA323WTR
1/41
STA323W
January 2005
This is preliminary information on a new product now in development. Details are subject to change without notice.
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
■
I
2
C Control
■
2-Channel I
2
S 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
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
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-
DESCRIPTION
TARGET SPECIFICATION
2.1 HIGH EFFICIENCY
DIGITAL AUDIO SYSTEM
REV. 1
Figure 1. Package
Table 1. Order Codes
Part Number
STA323W
STA323WTR
Package
PowerSO36 (Slug Down)
Tape & Reel
PowerSO36 SLUG DOWN
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