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TLV320AIC34: Codec

Hussein Mahamud

Prodigy 10 points

Part Number: TLV320AIC34

Tool/software:

Hello Abigail Leonardi .

I am seeing an issue with the setup of the codec in which registers 79, 86 and 93 are reading "Not all programmed gain have been applied" (D1 bit is set) when I attempt to set the Output level control to 0dB, unmute, and power on the respective lines.

I can't seem to determine why I am seeing this. I have also ensured in our setup that ADC flags, DAC status and power status are ok

Register #	ADDR_A	ADDR_B
79	0x00	0x0B
86	0x0B	0x00
93	0x0B	0x00

0 Jeff McPherson 8 months ago

TI__Mastermind 47815 points

Hi,

A couple things to check,

Is the flag reading back 1 after multiple reads?

Has the customer also tried power up, set the gain, read back the flag, unmute all in separate steps/writes?

Best regards,
Jeff McPherson

0 Hussein Mahamud 8 months ago in reply to Jeff McPherson

Prodigy 10 points

Hello,

I have tried the suggested steps.

- After multiple reads the flag continues to read back 1.

- It also reads back 1 after power up before and after setting gain or mute flags

0 Jeff McPherson 8 months ago in reply to Hussein Mahamud

TI__Mastermind 47815 points

Hi Hussein,

Sorry for the typo on the name before.

Would you be able to share with me the schematic with me so I can double check for anything that might be suspect?

Thanks,
Jeff McPherson

0 Hussein Mahamud 8 months ago in reply to Jeff McPherson

Prodigy 10 points

Hi Jeff,

Is there an email I can reach you at rather than posting the schematic here?

Thanks!

0 Jeff McPherson 8 months ago in reply to Hussein Mahamud

TI__Mastermind 47815 points

Hi Hussein,

Of course! For privacy I will share my email with you over private message.

Best regards,
Jeff McPherson