AnsweredAssumed Answered

AD9361 TPM in low temperature

Question asked by yaron1 on Aug 19, 2016
Latest reply on Sep 1, 2016 by yaron1



we were trying to use the temperature compensation feature for the TPM, everything seems to be as expected until the chamber temperature reaches about -10deg (we start at +60). At that time the TPM always reports 0x1FF for both channels.


Temp Settings:

reg 0x00B = -50 (0xce)

reg 0x00D = 0x05

reg 0x00F = 0x00

If we clear the temperature offset (reg 0x00B=0) the TPM reports are not stuck anymore


TPM compensation

0x06F = 0x02

If we clear the compensation reg (reg 0x06F=0) the TPM reports are not stuck anymore


Is this bug documented somewhere? Is there a workaround?