Silicon Laboratories SI5351A/B/C Computer Hardware User Manual


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Si5351A/B/C
Preliminary Rev. 0.95 29
Reset value = 0000 0000
Register 15. PLL Input Source
BitD7D6D5D4D3D2D1D0
Name
PLLB_SRC PLLA_SRC
Type
R/W R/W R/W R/W R/W R/W R/W R/W
Bit Name Function
7:4 Reserved Leave as default.
3 PLLB_SRC Input Source Select for PLLB.
0: Select the XTAL input as the reference clock for PLLB (Si5351A/C only).
1: Select the CLKIN input as the reference clock for PLLB (Si5351C only).
2 PLLA_SRC Input Source Select for PLLA.
0: Select the XTAL input as the reference clock for PLLA.
1: Select the CLKIN input as the reference clock for PLLA (Si5351C only).
1:0 Reserved Leave as default.
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