参数资料
型号: AD9852ASVZ
厂商: Analog Devices Inc
文件页数: 6/52页
文件大小: 0K
描述: IC DDS SYNTHESIZER CMOS 80-TQFP
产品培训模块: Direct Digital Synthesis Tutorial Series (1 of 7): Introduction
Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action
Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter
Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction
Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter
Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator
标准包装: 1
分辨率(位): 12 b
主 fclk: 300MHz
调节字宽(位): 48 b
电源电压: 3.14 V ~ 3.47 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-TQFP 裸露焊盘
供应商设备封装: 80-TQFP-EP(12x12)
包装: 托盘
配用: AD9852/PCBZ-ND - BOARD EVAL FOR AD9852
AD9852
Rev. E | Page 14 of 52
Figure 18 and Figure 19 show the residual phase noise performance of the AD9852 when operating with a 300 MHz reference clock with
the REFCLK multiplier bypassed vs. a 30 MHz reference clock with the REFCLK multiplier enabled at 10×.
0
CENTER 112.469MHz
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
50kHz/
SPAN 500kHz
00634-016
Figure 16. A Slight Change in Tuning Word Yields Dramatically Better Results;
112.469 MHz with All Spurs Shifted Out-of-Band, 300 MHz REFCLK
0
CENTER 39.1MHz
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
5kHz/
SPAN 50kHz
00634-017
Figure 17. Narrow-Band SFDR, 39.1 MHz, 50 kHz BW,
200 MHz REFCLK with REFCLK Multiplier Bypassed
FREQUENCY (Hz)
–100
–110
–150
–120
–130
–140
–160
–170
10
1M
100
100k
10k
1k
PH
A
SE
N
OISE
(
d
B
c
/H
z)
AOUT = 80MHz
AOUT = 5MHz
00634-018
Figure 18. Residual Phase Noise,
300 MHz REFCLK with REFCLK Multiplier Bypassed
FREQUENCY (Hz)
–90
–100
–140
–110
–120
–130
–150
–160
10
1M
100
100k
10k
1k
P
HAS
E
NOIS
E
(dBc
/Hz)
AOUT = 80MHz
AOUT = 5MHz
00634-019
Figure 19. Residual Phase Noise,
30 MHz REFCLK with REFCLK Multiplier = 10×
DAC CURRENT (mA)
55
0
S
F
DR
(dBc
)
54
53
52
51
50
49
48
5
1015
2025
00634-020
Figure 20. SFDR vs. DAC Current, 59.1 AOUT,
300 MHz REFCLK with REFCLK Multiplier Bypassed
FREQUENCY (MHz)
620
0
S
U
P
L
Y
CURRE
NT
(mA)
615
610
605
600
595
590
20
40
60
80
100
120
140
00634-021
Figure 21. Supply Current vs. Output Frequency (Variation Is Minimal,
Expressed as a Percentage, and Heavily Dependent on Tuning Word)
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