Datasheet

AD9547 Data Sheet
Rev. E | Page 82 of 104
Address Bit Bit Name Description
0x063F [7:4] Unused Unused.
[3:0]
Outer tolerance
Outer tolerance, Bits[19:16].
Table 92. Validation Timer—Profile 1
Address Bit Bit Name Description
0x0640
[7:0]
Validation timer
(expressed in units of ms)
Validation timer, Bits[7:0].
0x0641
[7:0]
Validation timer, Bits[15:8].
Table 93. Redetect Timer—Profile 1
Address
Bit
Bit Name
Description
0x0642
[7:0]
Redetect timer
(expressed in units of ms)
Redetect timer, Bits[7:0].
0x0643
[7:0]
Redetect timer, Bits[15:8].
Table 94. Digital Loop Filter Coefficients—Profile 1
1
Address
Bit
Bit Name
Description
0x0644 [7:0] Alpha-0 linear Alpha-0 coefficient linear, Bits[7:0].
0x0645
[7:0]
Alpha-0 coefficient linear, Bits[15:8].
0x0646 [7:6] Alpha-2 exponent Alpha-2 coefficient exponent, Bits[1:0].
[5:0]
Alpha-1 exponent
Alpha-1 coefficient exponent, Bits[5:0].
0x0647 [7:1] Beta-0 linear Beta-0 coefficient linear, Bits[6:0].
0
Alpha-2 exponent
Alpha-2 coefficient exponent, Bit 2.
0x0648
[7:0]
Beta-0 linear
Beta-0 coefficient linear, Bits[14:7].
0x0649 7 Unused Unused.
[6:2]
Beta-1 exponent
Beta-1 coefficient exponent, Bits[4:0].
[1:0]
Beta-0 linear
Beta-0 coefficient linear, Bits[16:15].
0x064A [7:0] Gamma-0 linear Gamma-0 coefficient linear, Bits[7:0].
0x064B [7:0] Gamma-0 coefficient linear, Bits[15:8].
0x064C
[7:6]
Unused
Unused.
[5:1] Gamma-1 exponent Gamma-1 coefficient exponent, Bits[4:0].
0
Gamma-0 linear
Gamma-0 coefficient linear, Bit 16.
0x064D [7:0] Delta-0 linear Delta-0 coefficient linear, Bits[7:0].
0x064E 7 Delta-1 exponent Delta-1 coefficient exponent, Bit 0.
[6:0] Delta-0 linear Delta-0 coefficient linear, Bits[14:8].
0x064F
[7:4]
Alpha-3 exponent
Alpha-3 coefficient exponent, Bits[3:0].
[3:0]
Delta-1 exponent
Delta-1 coefficient exponent, Bits[4:1].
1
The digital loop filter coefficients (α, β, γ, and δ) have the general form: x(2
y
), where x is the linear component and y is the exponential component of the coefficient.
The value of the linear component (x) constitutes a fraction, where 0 ≤ x < 1. The exponential component (y) is an integer. See the Calculating the Digital Filter
Coefficients section for details.
Register 0x0650 to Register 0x065A—Profile 1 Frequency Multiplication
Table 95. R Divider—Profile 1
1
Address
Bit
Bit Name
Description
0x0650 [7:0] R R, Bits[7:0].
0x0651
[7:0]
R, Bits[15:8].
0x0652
[7:0]
R, Bits[23:16].
0x0653 [7:6] Unused Unused.
[5:0]
R
R, Bits[29:24].
1
The value stored in the R divider register yields an actual divide ratio of one more than the programmed value.