Part Number: PCM1864 Hi expert,
I'm using two pcm1864. I've a dsp that it is master of clocks and it generates MCLK, BCLK e LRCLK.
That 3 clocks is connected to both pcm1864. The two 1864 are slave of clock with this connection:
DSP_MCLK ----…
Part Number: PCM1864-Q1 Hello TI experts,
my customer made their PCB with PCM1864-Q1. they found that there are many noise in the sound(voice) through microphone.
so it is better to review the schematic first. Could you review it?
microphone is connected…
Part Number: PCM1864 Hello,
Our customer is struggling to meet analog input voltage specification.
They placed voltage limiter at front-end amplifier however there is some variation of Vth, it bring high THD.
Here is question, we know absolute max rating…
At this moment is there only 1 ADC and DSP on the Board? If poor layout is the cause then its best to turn off all other Chips and DC Supplies and Operate chip with a Bench Supply.
Also is there a 22 ohm resistor in series with BCLK?
You could also write…
Part Number: PCM1864 Other Parts Discussed in Thread: PCM1690 , Hello,
Our customer observed folding noise when input 35KHz 0dBFS at Fs=48KHz TDM mode.
Here is FFT capture, we can see 13KHz -9dB spectrum. If change input signal level, folding noise level…
Hi Sanjay-san,
Today, I just tried out to replicate whether PCM1864 works normally with your procedure. As a result, I got a similar experience as you have. The requirements are as follows. - PLL output frequency should not exceed 98.3MHz. - The initial…
Part Number: PCM1864 Hi,
Could you please tell me how to set the clock divider configuration of master mode with ADC non-audio MCK as the following conditions?
<Example Conditions> - Mode = Master Mode with ADC non-audio MCK - PLL = Enable(CLKDET_EN…
Part Number: PCM1864
Dear team,
I want to know the RMS noise level for PCM1864? I try to use the SNR parameter to calculate as screenshot below.
But I find from the figure below is about -140dB.
Could you guide me to find right way to get the RMS noise…
Part Number: PCM1864 Hello TI's experts: Now I use the audio codec PCM1864,I have a few questions:
1、In the datasheet, the digital ground and the analog ground are directly connected together and there is no single-point grounding. Is it OK?
2、There…
Part Number: PCM1864
Hi team,
can you help to review the PCM1864 schematic?
customer would like remove osc crystal, and use BCLK as reference clock, please help check if it can work?
thank you
1321.PCM1864.pdf