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Hi, We have an application that only needs the services from the DSP from time to time. In between, the DSP should consume as little power as possible. The c5402 is specified to consume 5uA when in IDLE3, and this figure is acceptable. The problem we have is that the unit consumes more even when put to sleep (IDLE3). The main clock is generated by means of a crystal, and we have discovered that the clock is still running after the processor is put to sleep. This is likely the reason for the unexpected current drain. The documentation is not clear for this subject, but is it so that we need to use an external clock generator, which again is turned off by external means to achieve the 5uA, or have we done something else wrong here? thanks for your attention regards, Helge Minken |
IDLE3 Power c5402 - 5uA ?
Started by ●November 13, 1999
