• 

  Dexter Choi60

  • 20 days ago
  • Audio
  • Audio forum

  TPA3138D2: Sound cut-off phenomenon for MAX volume.

  Part Number: TPA3138D2 Dear Sir, My customer is using PCM5100+TPA3138D2 as below structure. Mobile -> PCM5100 -> TPA3138D2 -> 4ohm speaker. When volume is maximum, The sound of AMP cut-off. so we test as below 1. add diver resister...
• 

  Dexter Choi60

  • 2 months ago
  • Audio
  • Audio forum

  RE: TPA3138D2: No sound issue

  Dear Kato, please refer to the attached waveform. It seems PCM5100 OUTR is difference signal. so RINP Bias voltage is drop under 2.5V. please check it and let me know any advise. 1. Yellow : PCM5100 OUTR 2. Green : TPA3138 RINP 3. Blue...
• 

  Ravindra Desai

  • over 1 year ago
  • Audio
  • Audio forum

  PCM5100: About the output low pass filter on PCM5100 DAC

  • Resolved

  Part Number: PCM5100 Hello, The suggested LPF on the PCM5100 DAC output is 470E and 2.2nF
• 

  SM

  • over 1 year ago
  • Audio
  • Audio forum

  PCM5100: Synchronization of multiple audio DACs

  TI Thinks Resolved

  Part Number: PCM5100 Hello, Please advise if multiple PCM5100s can be made to work in phase i.e., the outputs are phase synchronous. Also, will there be any delay between the two audio outs of a single device? Does this need any special way of connecting...
• 

  Paul_Frost

  • over 2 years ago
  • Audio
  • Audio forum

  RE: PCM5100: PCM5100EVM usage issue

  Hi Chen Jiao, Please check the following: 1. the ground potential of both boards are the same. 2. XSMT needs to be high. If the XSMT jumper is removed then there is a 100kΩ resistor pulling the pin to ground. 3. FMT is low, so the data must be in...
• 

  Ian Hireson

  • over 1 year ago
  • Audio
  • Audio forum

  RE: PCM5100A: Asking for the recommendation on the PCM5100A design for headphone

  Hi Paul, Do you think that PCM5100 would suffer short term or long term damage or failure driving a 470R load? IH
• 

  Paul_Frost

  • over 2 years ago
  • Audio
  • Audio forum

  RE: PCM5100: PCM510xEVM-U USB streaming

  Hi, Can you confirm that you have selected the USB device as your audio output device in Windows? In addition you can use the CodecControl software to change the inputs. In addition, note that the jumper configuration must be set when switching...
• 

  Ian Wang

  • over 2 years ago
  • Audio
  • Audio forum

  PCM5100: PCM510x STOP BAND Performance Measure.

  TI Thinks Resolved

  Part Number: PCM5100 Dear Sir, My customer would like to confirm PCM510x stop band attenuation performance as Fig.15. Would you pls advise how we can use AP to test it? I cannot find standard measurement in AP list. Thanks,
• 

  Fery Feng

  • over 3 years ago
  • Audio
  • Audio forum

  PCM5100: PCM5100 EMC In Pin 2/4/6/7

  TI Thinks Resolved

  Part Number: PCM5100 Hi team, My customer is using PCM5100 in car audio. Recently they have test EMC noise in Pin 2/4, as show below, could I have you comments why they can see such EMC on Pin 2/4? I upload the their PCB layout, could you share...
• 

  Eric Shen42

  • over 2 years ago
  • Audio
  • Audio forum

  PCM5100A: PCM5100A no output

  TI Thinks Resolved

  Part Number: PCM5100A Dear TI: We used PCM5100A for experiments. The I2S audio signals BCK, LRCK and DIN are inputted to the PCM5100 , and the BCK, LRCK, DIN pin Waveform as an attachment, however, there are no outputs.Test VNEG=-3.3,CAPP=1.65V,CAPM...

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