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PGA900: Question about PGA900 TOP_TON

Part Number: PGA900


Hi Team,

Customer has a question need your help.

After the ADC_EN_VREF bit is set, TOP_TON outputs 2.5v. Clearing the TEST_MUX_DAC_EN bit, but it does not "Connects DAC output to TOP/TON pins", which is still 2.5V.

Base on the material:

  • TEST_MUX_P_EN bit is cleared. Connects PGAIN output to TOP/TON pins
  • TEST_MUX_T_EN bit is cleared. Connects TGAIN output to TOP/TON pins
  • TEST_MUX_DAC_EN bit is cleared. Connects DAC output to TOP/TON pins


Are the three digits cleared at the same time and all connected to TOP/TON pins? Not interlocking?

Thanks.