AD9954/PCBZ Analog Devices Inc, AD9954/PCBZ Datasheet - Page 12

• Manufacturer Part Number: AD9954/PCBZ
• Description: BOARD EVAL FOR 9954
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9954/PCBZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9954
• Primary Attributes: 14-Bit DAC, 32-Bit Tuning Word Width
• Secondary Attributes: 400MHz, Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9954
Figure 18. Residual Phase Noise with f
PLL Bypassed (Green), PLL Set to 4× (Red), and PLL Set to 20× (Blue)
f
–100
–110
–120
–130
–140
–150
–160
–170
–100
–110
–120
–130
–140
–150
–160
–170
CLK
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
= 400 MSPS; PLL Bypassed (Green), PLL Set to 4× (Red), and
10
Figure 17. Residual Phase Noise with f
10
100
100
PLL Set to 20× (Blue)
1k
1k
f (Hz)
f (Hz)
10k
OUT
10k
= 9.5 MHz, f
100k
OUT
= 159.5 MHz,
100k
CLK
1M
= 400 MSPS;
10M
1M
Rev. B | Page 12 of 40
R1
R2
REF2 200mV 500ns
Figure 19. Comparator Rise and Fall Time at 160 MHz
M 500PS 20.0GS/S
A CH1
708mV
FALL (R1) = 396.4PS
RISE(R2) = 464.3PS
IT 10.0PS/PT –100PS