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Frequency generator for 3 signals 120 degrees out of phase

Dig
I need to generate 3, 40kHz, signals that are out of phase by 120 degrees.  This is to turn on/off FETs that run  high-freq transformers.
 
Something simple is best. Like an IC solution. A IC frequency generator for example.
 
Thoughts?
 
Dig
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    The cheapest and most versatile way to do this is with a micro-controller. Many PICs and the ST STM32F100 range (ARM Cortex) have timers that will do this easily. You could use a small FPGA/CPLD but might find that harder if you don't use them already. Either route will give you a single chip master oscillator and three phase output.

    The processor will have other resources that might be useful in your design.

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    The cheapest and most versatile way to do this is with a micro-controller. Many PICs and the ST STM32F100 range (ARM Cortex) have timers that will do this easily. You could use a small FPGA/CPLD but might find that harder if you don't use them already. Either route will give you a single chip master oscillator and three phase output.

    The processor will have other resources that might be useful in your design.

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