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STA538Q Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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STA538Q Scheda tecnica(HTML) 1 Page - STMicroelectronics |
1 / 59 page January 2007 Rev 1 1/59 1 STA538 2 x 1.3 W class-D amplifier with analog or digital input 2.0 multichannel digital audio processor with FFX Features ■ Up to 96 dB dynamic range ■ Sample rates from 8 kHz to 192 kHz ■ FFXTM class-D driver ■ 1.5 V to 1.95 V digital power supply ■ 1.5 V to 3.6 V analog power supply ■ 18-bit audio processing and class-D FFXTM modulator ■ Digital volume control: – +36 dB to 105 dB in 0.5 dB steps – Software volume update ■ Individual channel and master gain/attenuation ■ Automatic invalid input detect mute ■ 2-channel I2S input/output data interface ■ Digitally controlled POP-free operation ■ Input and output channel mapping ■ 250 m Ω output CMOS Rdson ■ > 90% efficiency ■ 2 x 1.3 W (10% THD) on 4 Ω at 3.6 V ■ 2 x 0.7 W (10% THD) on 8 Ω at 3.3 V ■ Stereo headphone plus mono speaker application: – 50 mW stereo into 32 Ω headphone, 1.2 W mono into 4 Ω speaker at 3.3 V – 100 mW stereo into 16 Ω headphone, 1.2 W mono into 4 Ω speaker at 3.3 V Order codes TFBGA48 VFQFPN52 Part number Package STA538B TFBGA48 (tube) STA538Q VFQFPN52 (tube) www.st.com |
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