DiRaNa3 (SAF7754HV/N208WK) - Failure observed for adjacent channel selectivity

[gopalakrishna]

Hi,

In one of application, using Dirana3 (SAF7754HV/N208WK) module. As per  the standard ETSI EN 303 345-5 V1.2.1 (2021-12), the device is failing for "adjacent channel selectivity" at wanted signal center frequency of 216KHz details below,

Tuned frequency band : LF.
Wanted signal level (Conducted) : -91dBm but unwanted signal" conducted at -46dBm at  189Khz and 243Khz due to adjacent channel signal interference.

Frequency of interferer channels is 243KHz, 189KHz (N=3)

No issues observed at N=1,2.

Suggest me the solution to pass this test.

Thank you.

Regards,

Gopala

[Ricardo_Zamora]

Hello Gopala,

I apologize for the inconveniences, but this device is under NDA (Non-Disclosure Agreement) and everything related to them is not public, and this is not a secure channel for sharing any related information, for further information about them could you please help me contacting the person who helped you with these products in the past?

I really apologize for the inconveniences this might cause you and your project.

Regards,

Ricardo