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AD9670EBZ 데이터시트(PDF) 18 Page - Analog Devices

부품명 AD9670EBZ
상세설명  Octal Ultrasound Analog Front End
PDF  48 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD9670EBZ 데이터시트(HTML) 18 Page - Analog Devices

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Data Sheet
AD9674
Rev. A | Page 17 of 47
0
–100
2
11
INPUT FREQUENCY (MHz)
–90
–80
–70
–60
–50
–40
–30
–20
–10
3
4
5
6
7
8
9
10
LNA GAIN = 21.6dB
PGA GAIN = 27dB
MIN VGAIN, AOUT = –12.0dBFS
MAX VGAIN, AOUT = –1.0dBFS
THIRD-ORDER, MIN VGAIN
THIRD-ORDER, MAX VGAIN
SECOND-ORDER, MIN VGAIN
SECOND-ORDER, MAX VGAIN
Figure 21. Second-Order and Third-Order Harmonic Distortion vs. Input
Frequency, AOUT = −1.0 dBFS
0
–100
10
50
CHANNEL GAIN (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
PGA GAIN = 24dB
15
20
25
30
35
40
45
LNA GAIN = 17.9dB
LNA GAIN = 15.6dB
LNA GAIN = 21.6dB
Figure 22. Second-Order Harmonic Distortion vs. Channel Gain,
AOUT = −1.0 dBFS
0
–100
10
45
CHANNEL GAIN (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
PGA GAIN = 24dB
15
20
25
30
35
40
LNA GAIN = 15.6dB
LNA GAIN = 21.6dB
LNA GAIN = 17.9dB
Figure 23. Third-Order Harmonic Distortion vs. Channel Gain,
AOUT = −1.0 dBFS
0
–120
–40
0
ADC OUTPUT LEVEL (dBFS)
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
–35
–30
–25
–20
–15
–10
–5
VGAIN = 0V
VGAIN = –1.2V
VGAIN = +1.6V
Figure 24. Second-Order Harmonic Distortion vs. ADC Output Level (AOUT)
0
–120
–40
0
ADC OUTPUT LEVEL (dBFS)
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
–35
–30
–25
–20
–15
–10
–5
VGAIN = –1.2V
VGAIN = +1.6V
VGAIN = 0V
Figure 25. Third-Order Harmonic Distortion vs. ADC Output Level (AOUT)
–100
–160
–150
–140
–130
–120
–110
100
100k
10k
1k
OFFSET FREQUENCY FROM CARRIER (Hz)
Figure 26. TGC Path Phase Noise, LNA Gain = 21.6 dB, PGA Gain = 27 dB,
VGAIN = 0 V



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