Hi Jung,
I would look at Your SCLK input. jitter on this signal can worsen THD.
Also please try to use low voltage coefficient capacitors for C3, C12 (capacitors whos capacitance does not change much across voltage) such as a film capacitor. this note…
Part Number: PCM4222 Hi,
I checked the PCM4222s datasheet but did not find a specification for the power supply rejection ratio of the IC (VCC1 and VCC2). Are these values specified elsewhere or could you please provide these numbers?
Thanks, Stepha…
Part Number: PCM4222 We are using this part in a measurement system for precision audio measurement. We are trying to bound limits of measurement change between calibration procedures. However the data sheet for the part doesn't have any temperature coefficient…
Part Number: PCM4222 Hello,
I'm trying to understand how to set the BCK clock input rate when using the ADC in PCM mode, Left-Justified data format, Slave Mode, Normal speed mode
quoting the datasheet (pag. 21):
For the I2S and Left-Justified data…
Part Number: PCM4222 Hello,
About the THD+N, I have a question to interrupt you.
The dynamic range is about 121dB, that is to say the ADC quantized noise is about-121dbfs. But when the sample rate is 48Khz and 96Khz, the THD+N are both 108dB under the…
Part Number: PCM4222 Other Parts Discussed in Thread: OPA1632 Hi, I am implementing the PCM4222 in a design and i have a question in respect to the maximum analogue input voltage on pins VinL+/VinL- and VinR+/VinR- for FSD. The datasheet states on page…
Part Number: PCM4222 Other Parts Discussed in Thread: PCM4220 Hi team,
Problem: after PCMEN pin of PCM4222 is pulled down, PCM still outputs. PCM output cannot be turned off, only after PCM4222 RST is reset can PCM output be turned off.
The IO of STM32…
Part Number: PCM4222 Hello. 4 PCM4222's in a system, one master and three slave. Do all four devices' control pins get used (FS0/FS1, OWL0/OWL1, and FMT0/FMT1) or only the master device? Any input is appreciated.
Part Number: PCM4222 Other Parts Discussed in Thread: OPA227 , , DIT4192 , OPA1612 ,
I am currently designing a prototype analog-to-digital converter with a PCM4222 and DIT4192. The analog front end uses OPA1612 input buffers. As recommended in the datasheet…