Part Number: PCM1822 Other Parts Discussed in Thread: PCM1681 Tool/software: I am confused by the datasheet about the function of the FMT0 pin.
According to section 8.3.2 / table 8-2 FMT0 selects whether to use I2S or TDM mode. There's nothing said about…
Part Number: PCM1822-Q1 Tool/software: Hi TI teams,
I have a question about the AREG and DREG Pins of the PCM1822-Q1.
I use external voltage supplies to AVDD and IOVDD pins. If I do NOT use AREG and DREG pins as power supplies, could I remove a…
Part Number: PCM1822 Other Parts Discussed in Thread: PCM1821 , PCM1861
Hi:)
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Does the PCM1822/PCM1821 support Single-Ended stereo Line-Inputs for standard auxiliary audio, or would the PCM1861 be a better fit for this?
Also, are any circuit diagrams available…
Part Number: PCM1822 Is this ADC specially designed for different MEMS microphone signals? Can I use near-field microphone signals in combination with a preamp to feed this ADC? If not, what are the risks?
Part Number: PCM1822 Is this ADC specially designed for differential MEMS microphone signals? Can I use near-field microphone signals in combination with a preamp to feed this ADC? If not, what are the risks?
Part Number: PCM1822 The absolute maximum rating for the analog inputs to the ADC at the low end is -0.3V. Recommended anlog input range is 0 to AVDD (+3.3V). With a 2Vpp input, wouldn't AC-coupling cause the input signal to swing to -1V, violating the…
Part Number: PCM1822 Hello Experts, If customer would like to use a single-ended input(signal input INP-pin), how customer should treat INM-pin? INM-pin connects a GND through capacitor(same value of INP-pin AC coupling capacitor)? Best Regards, Fujiwar…
Part Number: PCM1822 Hello Experts, The full scale AC signal voltage is stated 1Vrms(typ) in datasheet. The condition is AVDD is 3.3V. If AVDD is 3.1V, it will be reduced? Also if AVDD is 3.1V, the other spec(SNR, DR and so on) will be reduced? Best Regards…
Hi Mir
Sorry, I want to clarify that the current application only requires one microphone input, and it is single-ended. To avoid needing a driver, I want to confirm that the PCM1822 can meet the requirements for pure hardware ADC conversion. The EVM…
