STA529
Features
■ Up to 96 dB dynamic range
■ Sample rates from 8 kHz to 192 kHz
■ FFX™ class-D driver
■ 1.55 V to 1.95 V digital power supply
■ 1.80 V to 3.60 V analog and I/O power supply
■ 18-bit audio processing and class-D FFX™
modulator
■ >90-dB SNR analog-to-digital converter
■ Digital volume control:
– +36 dB to -105 dB in 0.5-dB steps
– Software volume update
■ 16-bit ADC
■ Individual channel and master gain/attenuation
■ Automatic invalid input detect mute
■ 2-channel I2S input/output data interface
■ Digitally controlled pop-free operation
■ 90% efficiency
■ Output power for stereo headphones or stereo
speakers applications (at THD = 10% and
VCC = 3.3 V):
– 45 mW with 32-Ω headphones
– 85 mW with 16-Ω headphones
– 720 mW with 8-Ω speakers
– 1.1 W with 4-Ω speakers
