LMX2615-SP: LMX2615

Jae-heung Yeom

Prodigy 100 points

Part Number: LMX2615-SP

Tool/software:

Hello

Now I am testing LMX2615-SP.

I use TICS Pro to obtain Register MAP.

For the datasheet, the division value is equivalent to 72.

However, there is no value for TICS Pro.

Therefore, TICS Pro and the datasheet have different CHDIVs for division values such as 96, 128, and 192.

Which definition should I follow?

Best Regards

Jaeheung

4 days ago

0 Noel Fung 3 days ago

TI__Guru* 85490 points

Hi Jaeheung,

Apologies for the confusion, divide by 72 is not a valid setting, we have removed this option in TICS Pro and we are in the process of updating the datasheet.

Here is the snap shot of the revised datasheet.

0 Jae-heung Yeom 3 days ago in reply to Noel Fung

Prodigy 100 points

Hello

Thanks for your reply.

Below the figure, the shape of the CSB wave is a pulse.

Instead of the pulse, can a high strobe without falling be used?

Best Regards

Jaeheung

0 Noel Fung 3 days ago in reply to Jae-heung Yeom

TI__Guru* 85490 points

Hi Jaeheung,

We can keep CSB = HIGH if there is no SPI activity. For example, after the last register write, CSB does not need to return to LOW, it can stay at HIGH.

0 Jae-heung Yeom 3 days ago in reply to Noel Fung

Prodigy 100 points

Thanks for your reply.

When we select MUXOUT_LD_SEL=0, can we obtain lock status from rb_LD_VTUNE R110[10:9]?

Best regards

Jaeheung

0 Jae-heung Yeom 2 hours ago in reply to Jae-heung Yeom

Prodigy 100 points

I have another question.

When I set register R0[0] to 0, can the output be generated without locking?

Is the muted function related to the pin ECAL_EN?

When can the muted output occur except setting the OUT_MUTE register?

"The output of the device can be automatically muted when lock detect indicator “Vtune and VCOCal” is low. This
feature is enabled with the field OUT_MUTE (register R0[9]) asserted."

Clock & timing

Clock & timing forum

LMX2615-SP: LMX2615