CDCM61002: Configuration question

Andrey Ampelonov

Prodigy 75 points

Part Number: CDCM61002

Hello.

Is OSC_OUT in this chip really turned off then outputs configured in to LVCMOS mode or not?

over 5 years ago

0 Noel Fung over 5 years ago

TI__Guru* 86330 points

Hi Andrey,

I am afraid I don't understand your question. Would you describe a bit more in details? Thank you.

0 Andrey Ampelonov over 5 years ago in reply to Noel Fung

Prodigy 75 points

Table 6 (Programmable Output Type) describe modes of operation of main output.

Then OS1 and OS0 is 0, output type is LVCMOS, OSC_OUT outout is off. Is it true?

I have this question because "ELECTRICAL CHARACTERISTICS" table in "LVCMOS Output Characteristics" part described both fOSC_OUT and fOUT frequency.

0 Hao Z over 5 years ago in reply to Andrey Ampelonov

TI__Mastermind 18070 points

Hi Andrey,

There's a misunderstanding. The fOSC_OUT shows up in LVCMOS section of EC (Electrical char) table not because OSC_OUT is on together with LVCMOS output, but because OSC_OUT (buffered version of OSC input) itself is in LVCMOS format. So both table 6 and EC table are correct.

Regards,
Hao

Clock & timing

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CDCM61002: Configuration question