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LMX2581: MUXout of LM2581

Part Number: LMX2581

Please give me some advice regarding the MUXout (LD) of the LMX2581.


OSCin:120MHz, RFout:1540MHz.
The setting of LMX2581 is as follows, and data is written from R5(int).
Even if OSCin is turned on from off, MUXout remains High Level.
(When OSCin is on, it can be confirmed that it is locked to the desired frequency)
Is the reason why the state of MUXout does not change is because some setting is wrong?

Regards,
Akihiko Yokouchi/

R5(int) 0x40870015
R15 0x021FE80F
R13 0x4080C10D
R10 0x210050CA
R9 0x03C7C039
R8 0x207DDBF8
R7 0x00022317
R6 0x000004C6
R5 0x0030A805
R4 0x00000004
R3 0x20002013
R2 0x0C000062
R1 0x2A003011
R0 0x001A0010