Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob

PSoC™ 4 HVPA: Usage of BUF_IDAC_EN bit of Buffer Control Register – KBA237577

PSoC™ 4 HVPA: Usage of BUF_IDAC_EN bit of Buffer Control Register – KBA237577

Infineon_Team
Employee
Employee
50 replies posted 25 likes received 25 replies posted

Version: *A

The BUF_IDAC_EN bit of the Buffer Control Register (PACSS_ACHANO_BUFF_CTL) is used to enable the current digital to analog convertor (IDAC) inside the buffer of the precision analog channel subsystem (PACSS). The IDAC is used to trim output offset of the buffer amplifier. By default, the buffer IDAC is enabled (BUF_IDAC_EN = 1). Do not modify the buffer IDAC in the firmware.

The buffer amplifier (red block in Figure 1) is between the anti-alias filter (AAF) block and the delta-sigma modulator (DSM). For more details about the buffer, see the “Buffer Amplifier” section in the “Precision analog channel subsystem” chapter of the architecture TRM. Contact your Infineon sales representative for access to the document.

Infineon_Team_0-1702289204409.png
Figure 1  PACSS analog channel - Simplified diagram
 
Note: This KBA applies to the following series of PSoC™ 4 HV family MCUs:

  • PSoC™ 4 HVPA series

 

 

 

0 Likes
96 Views