We are using the QCA9377-3 on our board. It is failing to initialize when the temperature is below -10C. This part is rated for -40to85, correct?
The error we are seeing it that it writes to CCCR register 02 (I/O Enable). It then reads register 03 (I/O Ready), expecting a value of 02. But we are getting a value of 00.
Has anyone had a problem with this chip at cold? For a value of 02, what funciton is failing to initialize?
Hi Keith,
Temperature range can vary. Please check with your module vendor.
Thanks.
We are not using a module. We purchased the IC and put it on our board. Please verify the temperature range of the IC.
I may have misunderstood. When you say "module" do you mean the IC? In some place the IC is refered to as a module. I was assuming that you meant a eval module from Silex or Murata.
Are there different versions of the IC with different temperature ratings?
>>I may have misunderstood. When you say "module" do you mean the IC?
YES.
>>Are there different versions of the IC with different temperature ratings?
YES.
Does it work for normal room temperature ranges?
Yes, at room temperature it works fine. It works down to -10C.
The full part number is QCA-9377-3-115WLNSP-SR-03-0 . What is the temperature range for this part?
for temperature range, please check with your module vendor.