TLV320AIC3104EVM-K

Gerhard Angerer

Prodigy 10 points

Other Parts Discussed in Thread: TLV320AIC3104EVM-K, TLV320AIC3106, TLV320AIC3104, TLV320AIC3107

Hi, please can you help me?

I get a TLV320AIC3104EVM-K Rev A evaluation board last days (08/2013) and download newest documentation.

The jumperlocation in the discription is different to the jumperlayout on board.

Maybe i have a older board revision.

Is there any other documentation?

Thank you

Gerhard

over 13 years ago

0 John Fedak over 13 years ago

TI__Expert 6715 points

Hi Gerhard,

Thank you for your question.

The board you have is up to date, however the documentation is incorrect (and is in the process of getting fixed).

**Correction**

The previous table below had a few assumptions about the application. Here is the full jumper list with descriptions (the default position is now consistent with the TLV320AIC3106)

Jumper	Default Position	Jumper Description
JMP1	Installed	Connects Analog and Digital Grounds.
JMP2	Open	Selects onboard EEPROM as Firmware Source.
JMP3	Installed	Connects onboard Mic to IN2L.
JMP4	Installed	Connects onboard Mic to IN2R.
JMP5	Installed	Provides a means of measuring IOVDD current.
JMP6	Installed	Provides a means of measuring DVDD current.
JMP7	Installed	Provides a means of measuring DVRDD current.
JMP8	Installed	Provides a means of measuring AVDD_DAC current.
JMP9	Open	When installed, allows the USB-MODEVM to hardware reset the device under user control.
JMP10	2-3	When connecting 2-3, mic bias comes from the MICBIAS pin on the device; when connecting 1-2, mic bias is supplied from the power supply through a resistor, which the user must install.
JMP11	Installed	When installed, shorts across the output capacitor on HPLOUT; remove this jumper if using AC-coupled output drive
JMP12	Installed	When installed, shorts HPLCOM and HPRCOM. Use only if these signals are set to constant VCM.
JMP13	Installed	When installed, shorts across the output capacitor on HPLCOM; remove this jumper if using AC-coupled output drive.
JMP14	Installed	When installed, shorts across the output capacitor on HPROUT; remove this jumper if using AC-coupled output drive.
JMP15	Installed	When installed, shorts across the output capacitor on HPRCOM; remove this jumper if using AC-coupled output drive.
JMP16	2-3	When connecting 2-3, IOVDD is set to +3.3VD; when connecting 1-2, IOVDD and DVDD are shorted at +1.8VD.

**Correction**

Here is the list of jumpers to install:

Jumper	Position
	1-2	2-3
JMP1	Install
JMP3	Install
JMP4	Install
JMP10	Do not install	Install
JMP12	Install
JMP16	Do not install	Install

The jumpers not listed should not be installed.

Regards,

~John

0 Gerhard Angerer1 over 13 years ago in reply to John Fedak

Prodigy 70 points

Hi John,

thank you, now works.

Installation with w7 drivers was very hard also very hard to find the NI-VISA drivers. I found no info at your homepage.

Have a other Question: Please can you give me a info what to switch on and off to use filters.

I tryed to play with filters but nothing happen. I use Input IN1R and Output RIGHT_LO.

Regards

Gerhard

0 John Fedak over 13 years ago in reply to Gerhard Angerer1

TI__Expert 6715 points

Hi Gerhard,

Glad to hear it! The instructions for win7 drivers will be added in that update.

Well, let me understand a little bit more about what you are trying to do. What is the input for your system? Are you using ADC or DAC filters? What coefficients are you using? And, how are you verifying the success/failure?

Just as a note (assuming you are using the GUI), the filter coefficients aren't loaded onto the TLV320AIC3104 until you press the "Download Coefficients" button.

Regards,

~John

0 Gerhard Angerer1 over 13 years ago in reply to John Fedak

Prodigy 70 points

Hi John,

thank you, i use the GUI for start to learn about the codec. Input comes from a stereo cd-player. Output goes to a class-d amp. Our goal would be to generate a frequency-separating filter for a 2-way speaker. Ex left output is deep frequency(200 - 2k), right output the high(2k - max). In the moment i have no coefficients exactly. I just play around to get a feeling with the GUI and Eval Tool.

I tryed with ADC or DAC filters (download coefficients .....than effect filter on) but in sound is no change to hear. It does no matter which filter or coefficient downloaded.

Hope you can give me a idea to find filters working.

best regards

Gerhard

0 John Fedak over 13 years ago in reply to Gerhard Angerer1

TI__Expert 6715 points

Hi Gerhard,

I think I may know your problem. What input are you currently using with your output (Line2, PGA, DAC)? If you are using the PGA, you are bypassing the filters. (For reference see page 3 of the TLV320AIC3104 Datasheet here)

Using that diagram, the signal path for your audio (in order to work with the filters) goes into IN1R to the PGA then to the ADC then to DOUT,*** then back from DIN then to Effects (i.e. DAC filters) to Volume Control then to the DAC and finally to the speaker.

(***Note: The DIN and DOUT must be tied (shorted) together - this is done externally from the AIC3104 chip. The easiest way to do this, using the EVM, is by putting a jumper on the modEVM motherboard on J14 across "IN" and "OUT" - J14 is located just above the EXT MIC input )

The settings inside the GUI (for your configuration), will have the Right ADC on, the Right DAC on, as well as the Right DAC Datapath set to the "Right Channel Input", lastly the input setting for your speaker will be the DAC_R and powered on.

Depending on the power you need, you may want to look into the TLV320AIC3107 as that has a built-in class D amplifier.

I hope this solves your problem.

Regards,

~John

0 Gerhard Angerer1 over 13 years ago in reply to John Fedak

Prodigy 70 points

Hi John,

so it work, my falt was the short (DIN - DOUT), thank you for this tip, i did not find such a info.

At this diagram is IN...PGA...ADC and a switch called SW-D1 or SW-D3, i was thinking this is the effect on checkbox in the GUI and route through to the effects.

Best regards

Gerhard

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