Only ST has the technologies and audio Intellectual Property to combine advanced signal processing and power circuitry on a single chip, making the new STA333IS digital audio SoC unique in the marketplace. Ideal for battery-operated equipment as well as space-constrained products such as LCD or LED televisions, docking stations and digital wireless speaker systems, the STA333IS features a wide operating voltage range, from 4.5V to 18V.
Delivering superb audio quality, outstanding thermal efficiency and low electromagnetic emissions, the STA333IS has a tiny 8.3mm2 footprint which provides design engineers with the extra freedom needed to style new generations of audio products.
Operating without an external microcontroller, the STA333SML variant for “micro-less” applications enables designers to create digital amplifiers with the lowest cost of ownership.
Samples and production quantities of the STA333IS and STA333SML are available now as 5×6-bump 0.5mm-pitch Chip-Scale Package devices. Prices start from $1.00 for orders over 1,000 pieces.
Key Features
-Wide-range supply voltage (4.5 V – 20 V)
-2 channels of ternary PWM (stereo mode)
-2 channels of 24-bit FFX
-100 dB SNR and dynamic range
-Selectable 32- to 192-kHz input sampling rates
-Digital gain -80 dB to +48 dB in 0.5 dB steps
-Software volume update
-Individual channel and master gain/attenuation
-Individual channel and master software and hardware mute
-Independent channel volume bypass
-Automatic zero-detect mute
-Automatic invalid input detect mute
-Short-circuit detection at startup (Out-Vcc, Out-Gnd, Out 1b-Out 2a)
-2-channel I2S input data interface
-2 Hz DC cut filter (input)
-Input channel mapping
-Automatic volume control for limiting maximum power
-96 kHz internal processing sampling rate, 24-bit precision
-Advanced modes for AM interference frequency switching and noise suppression
-Embedded thermal-overload and short-circuit protection