[IDEA] Class-D Multichannel amplifier

[forart.eu]

During my net surfing i have discovered this very interesting - IMHO - chip (produced by MAXIM) called MAX13301:

• High Output Power (10% THD+N)
  • 2 x 160W into 2Ω at 24V
  • 4 x 80W into 4Ω at 24V
• 2 Channels Can Be Paralleled
• Feedback After the Filter
  • Improves THD+N
  • Low Output Impedance
  • High-Frequency Response
  • Improved Damping of Complex Loads
  • Enables Low-Cost Inductors
• 102dB SNR
• Low 0.04% THD+N
• 70dB PSRR
• On-Board Diagnostics
• Short-to-Battery/GND
  • Open/Shorted Load
  • Tweeter Detect
• Protection and Monitoring Functions:
  • Short-Circuit Protection
  • 50V Load-Dump Protection
  • Programmable Clip Detection
  • DC Offset Detection
  • Open Battery/GND Tolerant
  • Thermal-Overload Protection
  • Thermal Warning Indication
• Four-Address I²C Control Interface
• Low-Power Shutdown Mode
• Up to 90.5% Efficiency
• -40°C to +125°C Ambient Operating Temperature
• 48-Pin TSSOP-EPR (Top Side Exposed Pad) Package
• AEC-Q100 Qualified

...and if you check the datasheet (here's the PDF), here's another interesting feature:

Clock Source
The device supports fixed-frequency modulation with an internal or external clock. The modulation mode is selected through CTRL1.CM[1:0] (operating mode select bits).
Master Configuration
In master mode, 10 modulation frequencies are available in fixed-frequency modulation mode. Program CTRL0.MDIV[3:0] (master clock-divide ratio bits) for the desired frequency.
Slave Configuration
Configuring the device as a slave allows an external clock source to provide the switching frequency. In this case, apply the external clock signal at SYNC at double the desired switching frequency.

Not only: it also has diagnostic functions, speakers protection, and I2C interface (that should let you control it through a serial interface).

Unfortunally i'm not an electronic enginner nor able to develop a circuit, but it would be very interesting to have "something" based on it.

Anyone ?

 

[coketech]

Im currently studying to be an engineer, this chip has certainly got my attention, it sounds like a fun project