AD9548/PCBZ Analog Devices Inc, AD9548/PCBZ Datasheet - Page 84

• Manufacturer Part Number: AD9548/PCBZ
• Description: Clock Generator Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of AD9548/PCBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Network Clock Generator/Synchronizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9548
• Kit Contents: Board
• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9548
• Primary Attributes: 62.5 ~ 450 MHz Output Frequency
• Secondary Attributes: SPI and I2C Compatible Control Port
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9548
Table 83. Digital Loop Filter Coefficients—Profile 0
Address
0612
0613
0614
0615
0616
0617
0618
0619
061A
061B
061C
061D
1
Table 84. R-Divider—Profile 0
Address
061E
061F
0620
0621
1
Table 85. S-Divider—Profile 0
Address
0622
0623
0624
0625
1
The digital loop filter coefficients (α, β, γ, and δ) have the general form: x(2
The value of the linear component (x) constitutes a fraction, where 0 ≤ x < 1. The exponential component (y) is an integer. See the Calculating Digital Filter Coefficients
section for details.
The value stored in the R-divider register yields an actual divide ratio of one more than the programmed value.
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.
Bits
[7:0]
[7:0]
[7:0]
[7:6]
[5:0]
Bits
[7:0]
[7:0]
[7:0]
[7:6]
[5:0]
[7:0]
[7:0]
[7:6]
[5:0]
[7:1]
[0]
[7:0]
[7]
[6:2]
[1:0]
[7:0]
[7:0]
[7:6]
[5:1]
[0]
[7:0]
[7]
[6:0]
[7:4]
[3:0]
Bits
Bit Name
R
Unused
R
Bit Name
S
Unused
S
1
1
Bit Name
Alpha-0 linear
Alpha-2 exponent
Alpha-1 exponent
Beta-0 linear
Alpha-2 exponent
Beta-0 linear
Unused
Beta-1 exponent
Beta-0 linear
Gamma-0 linear
Unused
Gamma-1 exponent
Gamma-0 linear
Delta-0 linear
Delta-1 exponent
Delta-0 linear
Alpha-3 exponent
Delta-1 exponent
R, Bits[7:0]
R, Bits[15:8]
R, Bits[23:16]
R, Bits[29:24]
S, Bits[7:0]
S, Bits[15:8]
S, Bits[23:16]
S, Bits[29:24]
Description
Description
1
Rev. A | Page 84 of 112
y
), where x is the linear component and y is the exponential component of the coefficient.
Description
Alpha-0 coefficient linear, Bits[7:0]
Alpha-0 coefficient linear, Bits[15:8]
Alpha-2 coefficient exponent, Bits[1:0]
Alpha-1 coefficient exponent, Bits[5:0]
Beta-0 coefficient linear, Bits[6:0]
Alpha-2 coefficient exponent, Bit 2
Beta-0 coefficient linear, Bits[14:7]
Beta-1 coefficient exponent, Bits[4:0]
Beta-0 coefficient linear, Bits[16:15]
Gamma-0 coefficient linear, Bits[7:0]
Gamma -0 coefficient linear, Bits[15:8]
Gamma-1 coefficient exponent, Bits[4:0]
Gamma-0 coefficient linear, Bit 16
Delta-0 coefficient linear, Bits[7:0]
Delta-1 coefficient exponent, Bit 0
Delta-0 coefficient linear, Bits[14:8]
Alpha-3 coefficient exponent, Bits[3:0]
Delta-1 coefficient exponent, Bits[4:1]