Datasheet

AD9547 Data Sheet
Rev. E | Page 84 of 104
Table 101. Tolerance—Profile 2
Address
Bit
Bit Name
Description
0x0688 [7:0] Inner tolerance Inner tolerance, Bits[7:0].
0x0689
[7:0]
Inner tolerance, Bits[15:8].
0x068A [7:4] Unused Unused.
[3:0] Inner tolerance Inner tolerance, Bits[19:16].
0x068B [7:0] Outer tolerance Outer tolerance, Bits[7:0].
0x068C
[7:0]
Outer tolerance, Bits[15:8].
0x068D [7:4] Unused Unused.
[3:0]
Outer tolerance
Outer tolerance, Bits[19:16].
Table 102. Validation Timer—Profile 2
Address
Bit
Bit Name
Description
0x068E [7:0] Validation timer
(expressed in units of ms)
Validation timer, Bits[7:0].
0x068F
[7:0]
Validation timer, Bits[15:8].
Table 103. Redetect Timer—Profile 2
Address
Bit
Bit Name
Description
0x0690
[7:0]
Redetect timer
(expressed in units of ms)
Redetect timer, Bits[7:0].
0x0691 [7:0] Redetect timer, Bits[15:8].
Table 104. Digital Loop Filter Coefficients—Profile 2
1
Address
Bit
Bit Name
Description
0x0692
[7:0]
Alpha-0 linear
Alpha-0 coefficient linear, Bits[7:0].
0x0693 [7:0] Alpha-0 coefficient linear, Bits[15:8].
0x0694
[7:6]
Alpha-2 exponent
Alpha-2 coefficient exponent, Bits[1:0].
[5:0]
Alpha-1 exponent
Alpha-1 coefficient exponent, Bits[5:0].
0x0695
[7:1]
Beta-0 linear
Beta-0 coefficient linear, Bits[6:0].
0 Alpha-2 exponent Alpha-2 coefficient exponent, Bit 2.
0x0696
[7:0]
Beta-0 linear
Beta-0 coefficient linear, Bits[14:7].
0x0697 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].
0x0698 [7:0] Gamma-0 linear Gamma-0 coefficient linear, Bits[7:0].
0x0699
[7:0]
Gamma-0 coefficient linear, Bits[15:8].
0x069A [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.
0x069B
[7:0]
Delta-0 linear
Delta-0 coefficient linear, Bits[7:0].
0x069C
7
Delta-1 exponent
Delta-1 coefficient exponent, Bit 0.
[6:0] Delta-0 linear Delta-0 coefficient linear, Bits[14:8].
0x069D
[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).