[IDEA] Class-D Multichannel amplifier

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forart.eu

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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
Click to expand...

...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.
Click to expand...

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 ?
 
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