Datasheet

AD9547 Data Sheet
Rev. E | Page 86 of 104
Register 0x06B2 to Register 0x06FF—Profile 3
Table 109. Priorities—Profile 3
Address
Bit
Bit Name
Description
0x06B2 [7] Phase lock scale Controls the phase lock threshold unit scaling.
0 = picoseconds.
1 = nanoseconds.
[6]
Unused
Unused.
[5:3] Promoted priority User assigned priority level (0 to 7) of the reference associated with Profile 3 while
that reference is the active reference. The numeric value of the promoted priority
must be less than or equal to the numeric value of the selection priority.
[2:0] Selection priority User assigned priority level (0 to 7) of the reference associated with Profile 3, which
ranks that reference relative to the others.
Table 110. Reference Period—Profile 3
Address
Bit
Bit Name
Description
0x06B3
[7:0]
Reference period
(expressed in units of fs)
Nominal reference period, Bits[7:0].
0x06B4 [7:0] Nominal reference period, Bits[15:8].
0x06B5 [7:0] Nominal reference period, Bits[23:16].
0x06B6
[7:0]
Nominal reference period, Bits[31:24].
0x06B7 [7:0] Nominal reference period, Bits[39:32].
0x06B8
[7:0]
Unused
Unused. Write 0s to these bits.
0x06B9 [7:0]
Table 111. Tolerance—Profile 3
Address Bit Bit Name Description
0x06BA
[7:0]
Inner tolerance
Inner tolerance, Bits[7:0].
0x06BB [7:0] Inner tolerance, Bits[15:8].
0x06BC [7:4] Unused Unused.
[3:0]
Inner tolerance
Inner tolerance, Bits[19:16].
0x06BD [7:0] Outer tolerance Outer tolerance, Bits[7:0].
0x06BE
[7:0]
Outer tolerance, Bits[15:8].
0x06BF [7:4] Unused Unused.
[3:0]
Outer tolerance
Outer tolerance, Bits[19:16].
Table 112. Validation Timer—Profile 3
Address
Bit
Bit Name
Description
0x06C0 [7:0] Validation timer
(expressed in units of ms)
Validation timer, Bits[7:0].
0x06C1
[7:0]
Validation timer, Bits[15:8].
Table 113. Redetect Timer—Profile 3
Address
Bit
Bit Name
Description
0x06C2 [7:0] Redetect timer
(expressed in units of ms)
Redetect timer, Bits[7:0].
0x06C3 [7:0] Redetect timer, Bits[15:8].
Table 114. Digital Loop Filter Coefficients—Profile 3
1
Address Bit Bit Name Description
0x06C4 [7:0] Alpha-0 linear Alpha-0 coefficient linear, Bits[7:0].
0x06C5 [7:0] Alpha-0 coefficient linear, Bits[15:8].
0x06C6
[7:6]
Alpha-2 exponent
Alpha-2 coefficient exponent, Bits[1:0].
[5:0] Alpha-1 exponent Alpha-1 coefficient exponent, Bits[5:0].
0x06C7
[7:1]
Beta-0 linear
Beta-0 coefficient linear, Bits[6:0].
0 Alpha-2 exponent Alpha-2 coefficient exponent, Bit 2.