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AD9547/PCBZ 数据表(PDF) 86 Page - Analog Devices |
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AD9547/PCBZ 数据表(HTML) 86 Page - Analog Devices |
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86 / 104 page  AD9547 Rev. 0 | Page 86 of 104 Address Bit Bit Name Description 0x06C9 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]. 0x06CA [7:0] Gamma-0 linear Gamma-0 coefficient linear, Bits[7:0]. 0x06CB [7:0] Gamma-0 coefficient linear, Bits[15:8]. 0x06CC [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. 0x06CD [7:0] Delta-0 linear Delta-0 coefficient linear, Bits[7:0]. 0x06CE 7 Delta-1 exponent Delta-1 coefficient exponent, Bit 0. [6:0] Delta-0 linear Delta-0 coefficient linear, Bits[14:8]. 0x06CF [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 0x06D0 to Register 0x06DA—Profile 3 Frequency Multiplication Table 114. R Divider—Profile 31 Address Bit Bit Name Description 0x06D0 [7:0] R R, Bits[7:0]. 0x06D1 [7:0] R, Bits[15:8]. 0x06D2 [7:0] R, Bits[23:16]. 0x06D3 [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 115. S Divider—Profile 31 Address Bit Bit Name Description 0x06D4 [7:0] S S, Bits[7:0]. 0x06D5 [7:0] S S, Bits[15:8]. 0x06D6 [7:4] Unused Unused. [3:0] S S, Bits[19:16]. 0x06D7 [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. Table 116. Fractional Feedback Divider—Profile 3 Address Bit Bit Name Description 0x06D8 [7:0] V V, Bits[7:0]. 0x06D9 [7:4] U U, Bits[3:0]. [3:2] Unused Unused. [1:0] V V, Bits[9:8]. 0x06DA [7:6] Unused Unused. [5:0] U U, Bits[9:4]. |
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