I found a nice back lit LCD display with 16, 1/2" high characters... not cheap (>$20) but with 16 characters I can display decibel level and frequency at same time.
There are cheaper displays but with much smaller characters. The only cheap/large character LCD was 4 digit clock display....
JR
Loftech TS-1 Schematics
Re: Loftech TS-1 Schematics
Cancel the "cancel culture", do not support mob hatred.
Re: Loftech TS-1 Schematics
This is fun thinking about this....
I could use a 16B DSPic that has 2x16b DAC built in, but only 12 bit A/D built in... Or in the $3-$4 range I can get a 24b stereo in/stereo out codec... that I can hang on a cheaper micro...
Probably use a DPOT to pad scale the input range down to the 3V codec.
Now that is probably more bits and I/O than I need, but why scrimp?
I need to soak this in beer tonight.
JR
I could use a 16B DSPic that has 2x16b DAC built in, but only 12 bit A/D built in... Or in the $3-$4 range I can get a 24b stereo in/stereo out codec... that I can hang on a cheaper micro...
Probably use a DPOT to pad scale the input range down to the 3V codec.
Now that is probably more bits and I/O than I need, but why scrimp?
I need to soak this in beer tonight.
JR
Cancel the "cancel culture", do not support mob hatred.
- mediatechnology
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Re: Loftech TS-1 Schematics
After soaking it in beer you might want to start a thread in the Design area of the forum. I'm liking this.
Other than the analog front end for the measurement A/D and the balanced output there doesn't seem like much additional outboard circuitry would be required.
Rather than a DPOT you might consider a resistive pad since the DPOTs THD would limit you if you ever wanted to use the same engine to perform THD measurement. You would want a low distortion coarse output pad too wouldn't you?
Other than the analog front end for the measurement A/D and the balanced output there doesn't seem like much additional outboard circuitry would be required.
Rather than a DPOT you might consider a resistive pad since the DPOTs THD would limit you if you ever wanted to use the same engine to perform THD measurement. You would want a low distortion coarse output pad too wouldn't you?
Re: Loftech TS-1 Schematics
Wayne can you split this topic and move this veer to another forum?
Moderators should have that capability.
If not I will start another.
JR
Moderators should have that capability.
If not I will start another.
JR
Cancel the "cancel culture", do not support mob hatred.
- mediatechnology
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Re: Loftech TS-1 Schematics
I will move that. Not something I do often so I have to remember.
What shall we call it?
What shall we call it?
Re: Loftech TS-1 Schematics
TS-too.... TS-1 revisit
JR
JR
Cancel the "cancel culture", do not support mob hatred.
- mediatechnology
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