Datasheet

AD9548 Data Sheet
Rev. E | Page 90 of 112
Table 108. Lock Detectors—Profile 2
Address Bits Bit Name Description
0x06A9 [7:0] Phase lock threshold
(units determined by
Register 0x0680[7])
Phase lock threshold, Bits[7:0]
0x06AA [7:0] Phase lock threshold, Bits[15:8]
0x06AB [7:0] Phase lock fill rate Phase lock fill rate, Bits[7:0]
0x06AC [7:0] Phase lock drain rate Phase lock drain rate, Bits[7:0]
0x06AD [7:0] Frequency lock
thresh-old (in
picoseconds)
Frequency lock threshold, Bits[7:0]
0x06AE [7:0] Frequency lock threshold, Bits[15:8]
0x06AF [7:0] Frequency lock threshold, Bits[23:16]
0x06B0 [7:0] Frequency lock fill rate Frequency lock fill rate, Bits[7:0]
0x06B1 [7:0] Frequency lock drain
rate
Frequency lock drain rate, Bits[7:0]
Register 0x06B2 to Register 0x07FF—Profile 3
Table 109. Priorities—Profile 3
Address Bits Bit Name Description
0x06B2 [7] Phase lock scale Controls the phase lock threshold unit scaling.
0 = picoseconds.
1 = nanoseconds.
[6] 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 Bits Bit Name Description
0x06B3 [7:0] Reference period (in
femtoseconds)
Nominal reference period, Bits[7:0]
0x06B4 [7:0] Nominal reference period, Bits[15:8]
0x06B5 [7:0] Nominal reference period, Bits[23:16]
0x 06B6 [7:0] Nominal reference period, Bits[31:24]
0x06B7 [7:0] Nominal reference period, Bits[39:32]
0x06B8 [7:0] Nominal reference period, Bits[47:40]
0x06B9 [7:2] Unused
[1:0]
Reference period
Nominal reference period, Bits[49:48]
Table 111. Tolerance—Profile 3
Address Bits 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
[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
[3:0] Outer tolerance Outer tolerance, Bits[19:16]
Table 112. Validation Timer—Profile 3
Address Bits Bit Name Description
0x06C0 [7:0] Validation timer
(in milliseconds)
Validation timer, Bits[7:0]
0x06C1 [7:0] Validation timer, Bits[15:8]