Datasheet

Data Sheet AD9548
Rev. E | Page 63 of 112
Addr
Opt
Name
D7
D6
D5
D4
D3
D2
D1
D0
Def
0x0612 Digital loop
filter
coefficients
Alpha-0 linear [15:0] 0x00
0x0613 0x00
0x0614 Alpha-2 exponent [1:0] Alpha-1 exponent [5:0] 0x00
0x0615 Beta-0 linear [6:0] Alpha-2
exponent
[2]
0x00
0x0616 Beta-0 linear [14:7] 0x00
0x0617 Unused Beta-1 exponent [4:0] Beta-0 linear [16:15] 0x00
0x0618 Gamma-0 linear [15:0] 0x00
0x0619 0x00
0x061A Unused Gamma-1 exponent [4:0] Gamma-0
linear [16]
0x00
0x061B Delta-0 linear [7:0] 0x00
0x061C
Delta-1
exponent
[0]
Delta-0 linear [14:8]
0x00
0x061D
Alpha-3 exponent [3:0]
Delta-1 exponent [4:1]
0x00
0x061E Frequency
multiplica-
tion
R [23:0] 0x00
0x061F
0x00
0x0620
0x00
0x0621 Unused R [29:24] 0x00
0x0622 S [23:0] 0x00
0x0623 0x00
0x0624 0x00
0x0625 Unused S [29:24] 0x00
0x0626 V [7:0] 0x00
0x0627 U [3:0] Unused V [9:8] 0x00
0x0628 Unused U [9:4] 0x00
0x0629 Lock
detectors
Phase lock threshold (picoseconds) [15:0] 0x00
0x062A 0x00
0x062B Phase lock fill rate [7:0] 0x00
0x062C Phase lock drain rate [7:0] 0x00
0x062D Frequency lock threshold (picoseconds) [23:0] 0x00
0x062E 0x00
0x062F 0x00
0x0630 Frequency lock fill rate [7:0] 0x00
0x0631 Frequency lock drain rate [7:0] 0x00
Profile Registers—Profile 1
0x0632 Priorities Phase lock
scale
Unused Promoted priority [2:0] Selection priority [2:0] 0x00
0x0633 Reference
period
Nominal period (femtoseconds) [47:0] (up to 1.125 sec) 0x00
0x0634
0x00
0x0635 0x00
0x0636
0x00
0x0637
0x00
0x0638 0x00
0x0639
Unused
Nominal period [49:48]
0x00
0x063A Tolerance Inner tolerance (1/tolerance) [15:0] (removes fault status; 10% down to 1 ppm) 0x00
0x063B
0x00
0x063C Unused Inner tolerance [19:16] 0x00
0x06CD Outer tolerance (1/tolerance) [15:0] (indicates fault status; 10% down to 1 ppm) 0x00
0x063E 0x00
0x063F Unused Outer tolerance [19:16] 0x00
0x0640 Validation Validation timer (milliseconds) [15:0] (up to 65.5 sec) 0x00
0x0641 0x00
0x0642 Redetect
timeout
Redetect timer (milliseconds) [15:0] (up to 65.5 sec) 0x00
0x0643 0x00