Data Sheet

8
DAC SNR 98 dB ('A' weighted), THD -84 dB at 48 kHz, 1.8V
ADC SNR 94 dB ('A' weighted), THD -85 dB at 48 kHz, 1.8V
Cirrus Logic 'class W' ultra-low power headphone driver
Up to 31 per channel output power at 1% THD+N into 16Ω at 1.8V
Ground referenced
Low offset (± 1.2mV)
Pop and click suppression
Control sequencer for pop-minimized power-up/down
Single register write for default start-up sequence
Two integrated PLLs enable clocking of full audio system
Two-wire I²C and 3- or 4-wire SPI serial control interface
Standard sample rates from 8 kHz to 96 kHz
Environment Sensor
Individual humidity, pressure, and gas sensors can be independently enabled/disabled
Gas sensor
Response time:
<1S (for new sensors)
Power consumption:
<0.1 mA in ultra-;ow power mode
Output data processing:
Direct index for air quality (IAQ) output
Humidity Sensor
Response time:
~8S
Accuracy tolerance:
+/- 3% r.H
Hysteresis:
+/-1.5% r.H
Pressure Sensor
RMS noise:
0.12 Pa, equiv. to 1.7cm
Offset temperature coefficient:
+/-1.3 Pa/K, equiv. to +/-10.9cm at 1°C temperature change
PMU
Six high-efficiency step-down regulators
Three 3 A buck regulators with DVS feature and remote sense
Two 3 A buck regulators
One 3 A buck regulator
Two 2 A buck regulators