Hi,
We know that the 1541 is not happy about voltage swing on it's output.
So it has to be kept low.
My idea:
Take a resistor value that gives 2V for 2mA and connect to a buffer opamp.
Use the output of the opamp as floating ground for the analog and digital ground of the 1541.
The TDA doesn't see the output voltage anymore.
Will this work ?
I found a TDA1541 S1 chip today.
It is not A version and got round Philips logo.
No silvercrown, only S1.
Bernhard
We know that the 1541 is not happy about voltage swing on it's output.
So it has to be kept low.
My idea:
Take a resistor value that gives 2V for 2mA and connect to a buffer opamp.
Use the output of the opamp as floating ground for the analog and digital ground of the 1541.
The TDA doesn't see the output voltage anymore.
Will this work ?
I found a TDA1541 S1 chip today.
It is not A version and got round Philips logo.
No silvercrown, only S1.
Bernhard
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Source & Line
- Digital Source
- 1541 passiv I/V idea & 1541 S1 found, no A !