Class D amplifier 1KHz, 5.5KHz IMD measurements

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Jump to Latest
L

longitude

Member
Joined 2007
Hi,
I performed some IMD measurements of my class D amps.
All T-amps are DIY amps from 41Hz.com. I use recommended op-amp buffer (LME 47920 OP) for UCD180LP-OEM.
UcD180HG (without HxR) and TA3020 seem very good and rest of the amps including the very low-cost TPA3116 are also OK.
Any idea why UCD180LP-OEM with a recommended buffer performs quite differently from UcD180HG?
An externally hosted image should be here but it was not working when we last tested it.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Top Bottom