LM98620: gain settings.

Kathir P

Part Number: LM98620

Hi,

In my project i am using lm98620.Regarding this i have 2 questions.

1.I am updating the gain value through spi communicaion(0x08,0x0C for Red channel) and enable red channel gain in 0x03 Register.After read the register(0x08 and 0x0C) through spi it's showing 0 value only.Apart from this,is there any setting for gain adjustment?

2.I am getting the camera waveform with up and down oscillation.So what are the parameters or registers or Signals should i check?

Thanks in advance.

Regards,

Kathir.

over 6 years ago

0 Liaqat Khan over 6 years ago

TI__Mastermind 18550 points

Hello Kathir,

Thank you for your post. I am assigning it to the engineer responsible for supporting this device. Please expect a response by 12/5/19.

Kind Regards,

Liaqat

0 Costin Cazana over 6 years ago

TI__Expert 4940 points

Hi Kathir,

To my understanding after writing a non zero value into the gain registers, the read back is 0.

Gain registers are read only when AGC is on, gain register writing works only in manual mode.

Very likely non optimum gain/offset setting is the cause of the oscillation

Regards,

Costin

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LM98620: gain settings.