FEATURES

MERUS™ multilevel switching technology

• 5‑level voltage modulation for ultra‑low idle power consumption:

155 mW @ 24 PVDD without the need of complex

dynamic rail‑tracking systems

• Inductor‑less application for reduced system cost without

output power limitations

• Reduced EMI emissions compared to traditional 2 and 3

level class D audio amplifiers for fast time to market without

compromises in audio performance or eficiency

• High eficiency at low output power: 80 %, 2×1.5 W, 8 Ω

for extended battery life and easy thermal management

in multichannel products even in idle state

Flexible configuration and application

• BTL rated output: 2×63 W, 24 V, 4 Ω, 10% THD

• PBTL rated output: 1×125 W, 24 V, 2 Ω, 10% THD

• PVDD voltage range (audio playback): 13.5 V to 26 V

• PVDD voltage range (communication): 6.65 V to 26 V

• High eficiency at low output power: 80 %, 2×1.5 W, 8 Ω

• Short circuit protection: 8 A peak (BTL) / 16 A peak (PBTL)

• External closed‑loop feedback for improved THD

• Integrated DSP with configurable biquads, limiters, volume

control and more

• Easy configuration over I2C‑bus with up to 64 devices

• 8‑bit auxiliary ADC for internal temp. / PVDD monitoring

or sampling from external sources

• Configurable switching edge steepness and inter‑chip

PWM sync for multi‑device systems

• No external heatsink required

Audio performance

• Output noise: 64 μVrms (A‑weighted)

• Dynamic range: 106 dB (A‑weighted)

• THD+N: 0.045%, 1 W, 1 kHz

Audio I/O

• 3‑wire digital audio interface (no MCLK required)

• 32, 44.1, 48, 88.2, 96,176.4, 192 kHz sample rates

• I2S and TDM formats supported

• Low input‑to‑output latency for echo cancellation

• Post‑DSP I2S output for chaining / echo cancellation