Skip to main content

New answers tagged

1 vote

Why ist the parallel RGB LCD interface radiating on my PCB?

As mentioned in comment to @rohmeoo 's answer. Slew rate control is like adding series Rs into 30 pf which you may not have with unshielded FFC around 0.5 pF /cm (est.) the speed breakpoint might ...
Tony Stewart EE since 1975's user avatar
1 vote

Why ist the parallel RGB LCD interface radiating on my PCB?

Change OSPEED register to reduce edge rates and get rid of the ringing. Should be a night and day difference if those signals are the perpetrators.
rohmeooo's user avatar
  • 975
0 votes
Accepted

Is this reflective or transflective LCD?

Your cube clock is transflective. the watch is reflective. transflective merely means it can transmit light that shines in from the back of the LCD stack but also can operate by reflecting light ...
Jasen  Слава Україні's user avatar
1 vote

Identify this 2-chip LED for LCD illumination

There are many similar SMT parts on offer. For example, these LEDs are so much better these days that a single die is all that is required (and they're half the length anyway, so definitely one), but ...
Spehro 'speff' Pefhany's user avatar
0 votes

Identify this 2-chip LED for LCD illumination

These look like either custom or obsolete THT LEDs. Everlight and others make smaller SMT versions now. MOQ 10k if custom. These look like a rear panel illuminator.
Tony Stewart EE since 1975's user avatar

Top 50 recent answers are included