AD9549/PCBZ Analog Devices Inc, AD9549/PCBZ Datasheet - Page 71

• Manufacturer Part Number: AD9549/PCBZ
• Description: BOARD EVALUATION FOR AD9549
• Manufacturer: Analog Devices Inc

Specifications of AD9549/PCBZ

• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9549
• Primary Attributes: 2 Inputs, 2 Outputs, VCO
• Secondary Attributes: CMOS, HSTL Output Logic, Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register 0x0406—Part Version
Table 127.
Bits
[7:6]
[5:0]
Register 0x0407 to Register 0x0408—Reserved
Register 0x0409—PFD Offset
Table 128.
Bits
[7:0]
Register 0x040A—PFD Offset (Continued)
Table 129.
Bits
[13:8]
Register 0x040B—DAC Full-Scale Current
Table 130.
Bits
[7:0]
Register 0x040C—DAC Full-Scale Current (Continued)
Table 131.
Bits
[9:8]
Register 0x040D to Register 0x040E—Reserved
Register 0x040F—Reference Bias Level
Table 132.
Bits
[7:2]
[1:0]
Register 0x0410—Reserved
HARMONIC SPUR REDUCTION (REGISTER 0x0500 TO REGISTER 0x0509)
See the Harmonic Spur Reduction section.
Bit Name
Part version
Reserved
Bit Name
DPLL phase offset
Bit Name
DPLL phase offset
Bit Name
DAC full-scale current
Bit Name
DAC full-scale current
Bit Name
Reserved
DC input level
Description
01b = AD9549, Revision A
00b = AD9549, Revision 0
N/A
Description
This register controls the static time offset of the PFD (phase frequency detector) in closed-loop mode.
It has no effect when the DPLL is open.
Description
This register controls the static time offset of the PFD (phase frequency detector) in closed-loop mode.
It has no effect when the DPLL is open.
Description
DAC full-scale current, Bits[7:0]. See the DAC Output section.
Description
DAC full-scale current, Bits[9:8]. See Register 0x040B.
Description
Reserved.
This register sets the dc bias level for the reference inputs. The value should be chosen such that V
as close as possible to, but does not exceed, 3.3 V.
00 = VDD3 − 800 mV.
01 = VDD3 − 400 mV.
10 = VDD3 − 1.6 V.
11 = VDD3 − 1.2 V.
Rev. D | Page 71 of 76
AD9549
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