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