Hi Jim, Yes I'm configuring the registers as per instructions in the 7.5.1 section. As you can see my first register write command is 0x2022 which means page 0 register 0 bit 0 = 0 and then I configure all other registers. In the end I send 0x2023 but this only locks the register control bit not the PLL bit 7. I have also tried by sending 0x20A3 (which means bit 7 and 0 are 1) to lock PLL and register control bit. But the output is same. I have read all the registers and I got correct values from the chip except for the page 0 register 0. After locking PLL and register control bit (0x20A3) when I read this register (0xA000) it gives me the value which shows PLL not locked only register control bit is locked (0010 0011). I dont know why its not showing PLL locked? Do I need to lock Register contol bit 0 and PLL bit 7 in two different write commands? Is it necessary to provide INCLK while writing the registers? Best Regards, Martin
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