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STA333ML 데이터시트(PDF) 1 Page - STMicroelectronics |
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STA333ML 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 15 page Target Specification This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice. February 2007 Rev 1 1/15 15 STA333ML Sound TerminalTM 2 channel microless high efficiency digital audio system Features ■ Wide supply voltage range (4.5-18 V) ■ 2 x 20 W @ 8 Ω, Vcc = 18 V ■ 3 power output configurations; 2 channels of ternary PWM ■ PowerSSO-36 exposed pad package ■ 2 channels of 24-Bit DDX® ■ 100 dB SNR and dynamic range ■ 32 kHz to 48 kHz input sample rates ■ Soft volume update ■ Automatic zero-detect mute ■ Automatic invalid input detect mute ■ 2-channel I2S input data interface ■ Selectable clock input ratio (256 / 364 Fs) ■ Max power correction for lower full power ■ 96 kHz internal processing sample rate, 24-bit precision ■ Thermal overload and short-circuit protection embedded Applications ■ LCD ■ DVD ■ Cradle ■ Digital speaker ■ Wireless speaker cradle Description STA333ML is a single die embedding digital audio processing and high efficiency power amplification, capable of operating without the aid of an external micro controller. The STA333ML is part of the Sound TerminalTM family that provides full digital audio streaming to the speaker offering cost effectiveness, low energy dissipation and sound enrichment. The STA333 ML combines a unique 24-bit DDX® digital Class-D ternary modulator together with an extremely low RDSON stereo power Dmos stage. The latter is capable of a total output power of 2 x 20 W with outstanding performances in terms of efficiency (>90 %), THD, SNR and EMI. The microless feature allows the use in low cost applications (cradle, digital speakers, audio terminals) where no micro controller is needed. The serial audio data interface accepts the world wide used I2S format; basic features (for example, oversampling clock, gain, I2S format) can be set using a minimal number of selection pins. STA333 ML is self-protected against thermal overload, overcurrent, short circuit and overvoltage conditions. The fault condition is also exported to an external pin (INT-LINE) for specific requirements. Order codes PowerSSO36 slug down Part number Package Packing STA333ML PowerSSO36 (slug down) Tube STA333ML13TR PowerSSO36 (slug down) Tape and reel www.st.com |
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