Part Number: PCM2912A Other Parts Discussed in Thread: INA1620 , 1. How the PCM2912A connects to a differential input headphone amplifier (such as the INA1620)
2. If it works, will it generate additional distortion?
3. For the PCM2912A, is there a recommended…
Part Number: PCM2912A Other Parts Discussed in Thread: INA1620 , , OPA1678 , OPA1611 , PCM2912 1. How the PCM2912A connects to a differential input headphone amplifier (such as the INA1620 )
2. If it works, will it generate additional distortion?
3. For the PCM…
Hello Henrik,
I am also confused by what you pointed out and would need time to look it over and make corrections. For the mean time I simulated the circuit shown within the section you referenced and swept the feedback cap to check the cutoff frequency…
Hi Josh,
Attached is an application note for the INA1620, "Parallel INA1620 Headphone Amplifiers for Higher Output Power" using the INA1620 that will be of interest, showing a suggested circuit on Figure 2.
https://www.ti.com/lit/an/sboa352…
Hi Pedaiah,
Shadow is out this week on the National Day holiday in China. I will respond to your questions and your review your schematic while he is out.
I do not see any coupling capacitors on the audio input piins. Replace R84, R86, R89 and R90 with…
Hello Sagar,
To start the discussion on your project I will make some device and circuit suggestions to see if we can identify products for your design to narrow down devices. From there we can start to look at technical details as they arise. There isn…
Part Number: INA1650 Other Parts Discussed in Thread: INA1620
Use INA1650 to do differential input, single end output audio circuit, input end added phantom 48V power supply,
help to see the next schematic connection method has a problem,
Thank you…
Part Number: BUF634A Other Parts Discussed in Thread: OPA2810 , OPA810 , OPA1656 , INA1620 , OPA1655 I am used to seeing a cap in series with t he negative input resistor on AC/audio op amp circuits. Why no such cap with this part? I also had another question…
Part Number: OPA1637 Other Parts Discussed in Thread: OPA1622 , INA1620 Are there any audio amplifiers that have the power down absorption and detection feature?
For example, it can even cut off the post circuit and contain the absorbent resistor.
Does…