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TMS320VC5509A: TMS320VC5509A power consumption issue

Part Number: TMS320VC5509A

Dear TI guys

I have use C5509A for a walkie-talkie project, meet a power consumption issue.

when the core voltage is 1.6V, the frequency-power consumption is 0.6mA/Mhz in datasheet, but in face, when 5509A run at 96Mhz in our system, the core power consumption is 92.9mA.

when the core voltage is 1.2V, the frequency-power consumption is 0.45mA/Mhz in datasheet, but in face, when 5509A run at 96Mhz in our system, the core power consumption is 64.1mA.

could you kindly help to advise how can I do to reduce this power consumption?

thanks a lot!