Part Number: TIPD181 Thank you for the circuit design.
However, Would it be possible to provide a design with somewhat larger components?
This one uses 603, which is pretty small.
If you look at the overall PCB size and complexity, there is no logical…
Part Number: TIPD181 Other Parts Discussed in Thread: OPA172 , TINA-TI Hi Team,
I want to rebuild the TIPD181 pre-amplifier. My first step was to order the TIDC916 PCB from JLCPCB. Then I assembled all parts from the TIPD181 reference design guide …
Part Number: TIPD181 Hello,
I am looking to compare the mag of frequencies between 35 and 250hz captured from an electret condenser microphone. I would like to use this reference design to get started but noticed a roll off in the transfer function…
Hello Torry, welcome to the TI e2e forums.
Torry Huang said: plan to use TLV6741 to amplify the differential from condenser microphone with single supply, is it feasible?
Yes, single supply is fine. The data sheet example was built and tested at least…
The amplitude increasing with each run is from the TI TINA file at
Open "Electret Microphone Pre-Amp.TSC"
Analysis -> Fourier Analysis -> Fourier Series
4.27 mV
Cancel
Analysis -> Fourier Analysis -> Fourier Series
422 mV
Cancel…
Lifang,
Is this the design? http://www.ti.com/tool/TIPD181
Are two of these circuits in series (output of one connected to the input of the other)?
Is the noise on the headphone just plugged in or is the noise heard somewhere else?
Hello Wenting,
Absolutely! The OPA1692 datasheet has an example of a preamplifier for a 3-wire electret microphone. Please refer to page 24 of the datasheet for an explanation of this: http://www.ti.com/lit/ds/symlink/opa1692.pdf
We also have some…
Hi Andreas,
I have a bit analyzed the circuit of the www.ti.com/.../TIPD181.
It seems that this circuit does not allow any cabling at the input because the microphone line directly connects to the -input of OPAmp. Any cable capacitance would erode…
Hi Arash,
We have an Audio sticky full of collateral for designing audio equipment with precision amplifiers. https://e2e.ti.com/support/amplifiers/f/14/t/798464
TIPD181 single ended preamplifier design: http://www.ti.com/lit/ug/tidu765/tidu765…
