Key Features
- Integrated DSP for audio
processing
- 24-V Supply for class-d output stage
- Y-Bridge multi-level supply architecture
- Hybrid-pro external boost
control algorithm
- Ultrasonic output support up to 40 kHz
Output
power:
- 25 W, 1% THD+N (4 Ω, 18 V)
- 30 W Maximum output power, 10%
THD+N
Efficiency (1% THDN) and power
consumption
- 82% at 1W, 4 Ω, PVDDH = 12 V,
PVDDL = 3.8 V
- 83% at 1W, 8 Ω, PVDDH = 18 V,
PVDDL = 5 V
- 84% at 1W, 4 Ω, PVDDH = 18 V,
PVDDL = 5 V
- 90% at 15W, 4 Ω, PVDDH = 18 V,
PVDDL = 5 V
- 93% at 15W , 8 Ω, PVDDH = 18 V,
PVDDL = 5 V
- <0.5 μA in Hardware Shutdown
Mode
Power supplies and management:
- AVDD: 1.8 V
- IOVDD: 1.8 V/ 3.3 V
- PVDDL: 2.7 V to 5.5 V
- PVDDH: 3 V to 24 V
Interfaces and Control:
- SDOUT for echo
cancellation
- I2S/TDM:
8 channels of 32 bits up to 192 KSPS
- I2C with
fast mode+ or SPI
- Inter-chip communication
bus
- 16 kHz to 192 kHz sample
rates
Advanced DSP audio processing:
- Real-time IV-sense for speaker
protection
- Dynamic range compressor
- Brownout protection with power
limiter
- Multi-channel balancing
communication
Protection and EMI:
- Over power and low battery protection
- PVDDH/ PVDDL supply tracking limiters
- Thermal and over current protections
- Thermal foldback
- Post filter feedback and slew rate control