參數(shù)資料
型號(hào): AD9547/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 84/104頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9547
設(shè)計(jì)資源: AD9547 Schematic
AD9574 BOM
標(biāo)準(zhǔn)包裝: 1
主要目的: 計(jì)時(shí),時(shí)鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9547
主要屬性: 2 個(gè)差分式或 4 個(gè)單端輸入
次要屬性: CMOS,LVPECL 和 LVDS 兼容
已供物品:
AD9547
Data Sheet
Rev. E | Page 80 of 104
Table 84. Digital Loop Filter Coefficients—Profile 01
Address
Bit
Bit Name
Description
0x0612
[7:0]
Alpha-0 linear
Alpha-0 coefficient linear, Bits[7:0].
0x0613
[7:0]
Alpha-0 coefficient linear, Bits[15:8].
0x0614
[7:6]
Alpha-2 exponent
Alpha-2 coefficient exponent, Bits[1:0].
[5:0]
Alpha-1 exponent
Alpha-1 coefficient exponent, Bits[5:0].
0x0615
[7:1]
Beta-0 linear
Beta-0 coefficient linear, Bits[6:0].
0
Alpha-2 exponent
Alpha-2 coefficient exponent, Bit 2.
0x0616
[7:0]
Beta-0 linear
Beta-0 coefficient linear, Bits[14:7].
0x0617
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].
0x0618
[7:0]
Gamma-0 linear
Gamma-0 coefficient linear, Bits[7:0].
0x0619
[7:0]
Gamma-0 coefficient linear, Bits[15:8].
0x061A
[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.
0x061B
[7:0]
Delta-0 linear
Delta-0 coefficient linear, Bits[7:0].
0x061C
7
Delta-1 exponent
Delta-1 coefficient exponent, Bit 0.
[6:0]
Delta-0 linear
Delta-0 coefficient linear, Bits[14:8].
0x061D
[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(2y), 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 0x061E to Register 0x0628—Profile 0 Frequency Multiplication
Table 85. R Divider—Profile 01
Address
Bit
Bit Name
Description
0x061E
[7:0]
R
R, Bits[7:0].
0x061F
[7:0]
R, Bits[15:8].
0x0620
[7:0]
R, Bits[23:16].
0x0621
[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.
Table 86. S Divider—Profile 01
Address
Bit
Bit Name
Description
0x0622
[7:0]
S
S, Bits[7:0].
0x0623
[7:0]
S
S, Bits[15:8].
0x0624
[7:4]
Unused
Unused.
[3:0]
S
S, Bits[19:16].
0x0625
[7:0]
Unused
Unused.
1
The value stored in the S divider register yields an actual divide ratio of one more than the programmed value. Furthermore, the value of S must be at least 7.
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