Playing around with the LT1228
You are viewing an old revision of this post, from November 14, 2013 @ 16:12:11. See below for differences between this version and the current revision.
At first, we’re just trying to build a simple DC-to-very-high-frequency VCA using the LT1228
Output is nice, very good colors, nice black, everything perfect…
but cv input has not our desired bandwidth. When feeding a video signal as CV it gets quite blurred. Measurements show that around 30-40khz CV gets too much damping (-3dB @ 40kHz ). Is it the protection diode D1 ? (somewhere (?) in the data sheet, Max saw that Iset (pin 5) never should be negative.)
We take it out to see if we’re able to grill the IC – or if frequency response improves.
On another note: we should buffer the output of the sk107 comparator module
Module Info
Inputs: | |
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Outputs: | |
Power Draw on +5V: | N/A |
Power Draw on -5V: | N/A |
Frequency Response: |
Schematic & PCB
Observations
No observations yet
Revisions:
- November 14, 2013 @ 16:12:11 [Current Revision] by Michael
- November 14, 2013 @ 16:12:11 by Michael
- November 3, 2012 @ 19:19:48 by Michael
Changes:
There are no differences between the November 14, 2013 @ 16:12:11 revision and the current revision. (Maybe only post meta information was changed.)