Search found 2 matches

by axe111
Thu Dec 28, 2023 12:30 pm
Forum: Hardware
Topic: ESP8685 LNA_IN Impedance
Replies: 3
Views: 1522

Re: ESP8685 LNA_IN Impedance

Hi, thank you. The Trace to the Antenna should be 50Ω single ended impedance. Matching circuit is intended for matching LNA_IN pins output impedance to the trace and later to the antenna. However Hardware design guide and Datasheet do not mention the ouput impedance of LNA_IN pin, so this is what i ...
by axe111
Thu Dec 28, 2023 9:05 am
Forum: Hardware
Topic: ESP8685 LNA_IN Impedance
Replies: 3
Views: 1522

ESP8685 LNA_IN Impedance

Hi there,

in the Datasheet of ESP8685 the impedance of LNA_IN pin is not listed.
In ESP32-C3 Datasheet also no value is given.

Please advise on which value to use for ESP8685H4 chip.

Thank you!