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STA321 Datasheet(PDF) 151 Page - STMicroelectronics

Part # STA321
Description  4-channel digital audio system with FFX??driver
PDF  157 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA321 Datasheet(HTML) 151 Page - STMicroelectronics

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STA321
I2C disabled (microless) mode
Doc ID 15351 Rev 3
151/157
The input sampling frequency must be between 32 kHz and 48 kHz and the master clock
input (MCLK or XTI) must be 256 * fS.
The CMOS bridge FFX output is configured in line-out mode:
left channel binary on OUT1
right channel binary on OUT2
zero signal binary (duty cycle 50%) on OUT3
pop-free digital ramp active
volume control not effective (always 0 dB)
switching frequency 384 kHz.
The external amplifier FFX output is configured in BTL mode:
left channel BTL (new ternary modulation) on EAPWM1 and EAPWM2
right channel BTL (new ternary modulation) on EAPWM1 and EAPWM2
volume control is effective
switching frequency 384 kHz.
The headphone detection is disabled.
The CLKOUT pad is active at the PLL frequency of 2048 * fS.



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