STA333BW datasheet(1/64 Pages) STMICROELECTRONICS

Part #	STA333BW

Description	2.1-channel high-efficiency digital audio system

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

July 2007

Rev 2

1/64

1

STA333BW

2.1-channel high-efficiency digital audio system

Features

! Wide supply voltage range (4.5 to 20 V)

! 3 power output configurations

– 2 channels of ternary PWM (stereo mode)

(2 x 20 W @ 8

Ω, 18 V).

– 3 channels - left, right using binary and LFE

using ternary PWM (2.1 mode) (2 x 9 W +

1x20 W @ 2x4

Ω, 1 x 8 Ω, 18 V)

– 2 channels of ternary PWM (2 x 20 W) +

stereo line out ternary

! 2.1 channels of 24-bit DDX®

! 100 dB SNR and dynamic range

! Selectable 32 KHz to 192 KHz input sample

rates

! I2C control with selectable device address

! Digital gain/attenuation +48 dB to -80 dB in

0.5 dB steps

! Soft volume update

! Individual channel and master gain/attenuation

! Dual independent limiters/compressors

! Dynamic range compression or anti-clipping

modes

! AutomodesTM

– 15 preset crossover filters

– 2 preset anti-clipping modes

– Preset nighttime listening mode

! 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 I2S input data interface

! Input and output channel mapping

! 4 x 28-bit user programmable biquads (EQ) per

channel

! Bass/treble tone control

! DC blocking selectable high-pass filter

! Selectable de-emphasis

! 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

! Selectable clock input ratio

! 96 kHz internal processing sample rate, 24 to

28-bit precision

! Thermal overload and short-circuit protection

embedded

! Video application supports 576 x fs input mode

! PSSO-36 slug down package, RoHS.

PowerSSO36

slug down

Table 1. Device summary

Order codes

Package

Packing

STA333BW

PowerSSO36 slug down

Tube

STA333BW13TR

PowerSSO36 slug down

Tape and reel

www.st.com

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