參數(shù)資料
型號: AD9954YSV-REEL7
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理外設(shè)
英文描述: 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
中文描述: DSP-NUM CONTROLLED OSCILLATOR, PQFP48
封裝: EXPOSED PAD, PLASTIC, MS-026-ABC, TQFP-48
文件頁數(shù): 12/36頁
文件大小: 1027K
代理商: AD9954YSV-REEL7
AD9954
Rev. 0 | Page 12 of 36
Figure 16. Residual Phase Noise with F
OUT
= 159.5 MHz. F
CLK
= 400 MSPS
(Green), 4 × 100 MSPS (Red), and 20 × 20 MSPS (Blue)
Figure 17. Residual Phase Noise with F
OUT
= 9.5 MHz; F
CLK
= 400 MSPS (Green),
4 ×100 MSPS (Red), and 20 × 20 MSPS (Blue)
REF2 200mV 500ns
R2
R1
IT 10.0PS/PT –100PS
M 500PS 20.0GS/S
A CH1 708mV
0
FALL (R1) = 396.4PS
RISE(R2) = 464.3PS
Figure 18. Comparator Rise and Fall Time at 160 MHz
CH1 200mV
1
IT 4.0PS/PT 3.1ns
M 200PS 20.0GS/S
A CH1 708mV
0
t
1 = 3.156ns
t
2 = 3.04ns
t =
–116.0PS
1/
t =
–8.621GHz
Figure 19. Residual Peak-to-Peak Jitter of DDS
and Comparator Operating Together at 160 MHz
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