Applications

• Wireless earbuds

• Wireless headphones

• Active Noise Cancellation (ANC) circuits

• Portable electronics

Features

• Low power consumption:

- Quiescent power <900 μW

- Standby power (I2C activity) <100 μW

- Reset power <6 μW

• High incremental output efficiency:

- 84% (62 mW O/P to 16Ω)

• High quality audio performance:

- DNR > 110 dB (A-wt)

- THD+N: –79 dB

- PSRR: –94 dB (<5 kHz)

• Low latency: < 5 μS

• Supply voltage inputs:

- VBAT (3.3V to 4.9V)

- VDDIO (1.2V to 1.8V)

• Internally generated low-voltage supplies

• Operating Modes:

- Reset

- Standby

- Audio playback

- Two output gain modes, 0 dB (Normal) and

+6 dB (High)

- Fault

• PDM interface

- 3.072 MHz PDM Clock, mono 1-bit PDM Data

- 3.072 MHz PDM Clock, stereo 1-bit PDM Data

- 3.072 MHz PDM Clock, 1.5-bit mono PDM Data

- 6.144 MHz PDM Clock, 1.5-bit stereo PDM Data

• Serial Audio Interface (SAI):

- Support for 44.1 kHz, 48 kHz and 96 kHz 32-bit

data

- SAI supports I2S and left justified data formats

- EN/WS pin used for Word Select

• Clock System:

- Audio path clock derived from PDM or SAI clock

in

- Autonomous system clock for I2C configuration

without a PDM or SAI clock present

• Digital control:

- RESET

- EN (if not in SAI mode)

- System/amp configuration (via I2C)

- Fault code read/clear (via I2C)

• Host notification:

- IRQ (active low)

• Multi-level, output driver/amplifier:

- Programmable edge-rate control

- Programmable non-overlap timing

- Thermal protection

• Other features:

- Supply fault protection

- On-chip temperature fault protection

- Chip unique ID and information in the OTP (can

be read by host)

- ESD: HBM = 1500 V, CDM = 300 V