JAJSF44D March 2014 – March 2018 PCM1860 , PCM1861 , PCM1862 , PCM1863 , PCM1864 , PCM1865
PRODUCTION DATA.
Background: PGA Clipping is a dynamic interrupt. The INT pin will pulse as and when the Internal ADC flow clips. Despite the dynamic nature of the interrupt output pin, INT_STAT (Page.0 0x61) is a sticky register. To clear this register, take the following steps:
Step 1: Read the INT_STAT (Page.0 0x61) to confirm it is a PGA clipping event.
Step 2: Lower the gain of the current input channel INT_EN (Page.0 0x60)
Step 3: Reset the interrupt using INT_EN (Page.0 0x60). Set bit 5 to 0, then back to 1.
Step 4: Bit 5 of INT_STAT (Page.0 0x61) should now be 0. If not, go to step 2 again.