STA326 Datasheet, PDF (1/43 Pages) STMicroelectronics – 2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM

STA326
2.1 HIGH EFFICIENCY
DIGITAL AUDIO SYSTEM
1 FEATURES
■ Wide supply voltage range (10-36V)
■ 3 Power Output Configurations
– 2x30W + 1x60W, 8Ω+4Ω @ 10% THD
– 2x60W, 8Ω @ 10% THD
– 1x120W, 4Ω @ 10% THD
■ Power SO-36 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 22-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™
– 31 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
■ Over Current and over-temperature protection
with programmable recovery
■ Thermal warning indicator with programmable
auto output power reduction
■ Selectable De-emphasis
May 2006
Figure 1. Package
PowerSO36 (Slug up)
Table 1. Order Codes
Part Number
STA326
STA32613TR
Package
PowerSO36 (Slug up)
Tape & Reel
■ 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 STA326 is an integrated solution of digital au-
dio processing, digital amplifier control, and DDX-
Power Output Stage, thereby creating a high-pow-
er single-chip DDX® solution comprising of high-
quality, high-efficiency, all digital amplification.
The STA326 can be configured via digital control
to operate in several output modes providing up to
2.1 channels of power output to speakers.
This device is capable to deliver up to 2x30W +
1x60W in 2.1 mode or 2x60W in stereo mode.
The IC can also be configured as a single
paralelled full-bridge capable of high-current oper-
ation and 1x120W output.
Also provided in the STA326 are a full assortment
of digital processing features. This includes up to
4 programmable 28-bit biquads (EQ) per channel,
and bass/treble tone control. Automodes™ enable
a time-to-market advantage by substantially re-
ducing the amount of software development need-
ed for certain functions. This includes Auto
Rev. 2
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