Other lower frequencies for a Crystal

Status
Not open for further replies.
E

eedac

Junior Member level 3
Joined
Mar 16, 2005
Messages
30
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
HK
Activity points
1,562
I used a FM audio transmission IC. A 7.6MHz crystal clocks the system and to be divided as a 19kHz-pilot.

But I found some other lower frequencies (600Hz, and 1kHz) accompanied with the pilot. It is generated from the crystal.

I tried to change the caps between the crystal and ground, frequencies would exist......what's go on? do any idea?

Thanks!!
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…