Other Parts Discussed in Thread: TMS320F28335 , PCM4222 Lately I've been trying to interface the PCM4222 audio CODEC with the TMS320F28335 development kit. I have the 4222 working fine and functioning well as an ADC, however when it comes to having the…
Hey Thomas,
If you are not AC coupling the input then there will be some DC offset from the input amplifier stage in addition to the offset from the modulator. You say you are using OPA1612, I'm assuming that you are using 2 of these in a differential…
Hello,
The sine wave in your image looks really noisy and on a 1V/div scale you have >250mVpp of noise which seems really high. You may want to check your grounds and other connections to make sure things are okay.
We can get into the lab to help with…
Part Number: TAS3251EVM Other Parts Discussed in Thread: PCM4222EVM Hello,
We bought 4 of the TAS3251EVM modules to evaluate these chips for use in our active speakers. Our plan is to setup a pair of 3 way active speakers using 1 module in BTL for the…
Part Number: PCM4220 Other Parts Discussed in Thread: OPA1671 , OPA1632 , OPA1656 , OPA1692 , OPA1612 , PCM4222 , PCM4222EVM , TINA-TI Hi All,
I wanted to apply the opamp circuit to PCM4220 like below picture, and searched for reference opamp circuit or application…
Part Number: PCM4222 The IC has overflow channel indicators but no description of thresholds which activate this. The absolute maximum analog input voltage is 6V. The evaluation board PCM4222EVM schematics shows no input clamps.
1) Is there internal clamping…
Hi Zak-san,
Thank you for your quick response.
I cannot simulate the phase margin regarding "Riso + Dual Feedback(Q1)" and "the isolation resistor for the load capacitance(Q2)" since OPA1632 spice model isn't provided to us. So…
Other Parts Discussed in Thread: PCM4222EVM , DIT4192 , PCM4222 Hello,
I'm new to digital audio, so my question can look stupid, but...
I looking a way to connect PCM4222EVM via TOSLINK to PC.
My idea as follows : connect TOTX195 10Mb optical transmitter…
Other Parts Discussed in Thread: PCM4222 , PCM4222EVM , OPA1632 I am working on a design using the PCM4222 analog to digital converter.
I have the PCM4222EVM, and I have noticed that the PCM4222 gets pretty hot. I can see that there are thermal vias on the…