參數(shù)資料
型號: AD9877
廠商: Analog Devices, Inc.
英文描述: Mixed-Signal Front End Set-Top Box, Cable Modem
中文描述: 混合信號前端機頂盒,電纜調(diào)制解調(diào)器
文件頁數(shù): 11/36頁
文件大?。?/td> 1094K
代理商: AD9877
AD9877
Rev. B | Page 11 of 36
FREQUENCY (MHz)
0
110
30
50
60
70
0
M
–20
–30
–50
–60
–70
–90
20
40
90
80
–80
–40
–10
10
100
0
Figure 9. Single Sideband @ 5 MHz, RBW = 2 kHz, f
C
= 6 MHz,
f = 1 MHz, R
SET
= 4.02 KΩ, DAC gain = 7.5 dB
FREQUENCY (MHz)
62.5
67.5
64.0
65.0
65.5
0
M
–20
–30
–50
–60
–70
–90
63.5
64.5
66.5
66.0
–80
–40
–10
63.0
67.0
0
Figure 10. Single Sideband @ 65 MHz, RBW = 500 Hz, f
C
= 66 MHz,
f = 1 MHz, R
SET
= 4.02 KΩ, DAC gain = 7.5 dB
f
IN
(MHz)
5
9
55
70
(
60
50
45
40
15
45
75
55
65
25
35
65
85
105
5
PLL
f
OSCIN
0
Figure 11. 12-Bit ADC SNR vs. Input Frequency
f
IN
(MHz)
5
9
55
90
(
80
70
65
60
15
45
75
75
85
25
35
65
85
105
5
0
f
OSCIN
PLL
Figure 12. 12-Bit ADC SFDR vs. Input Frequency
f
IN
(MHz)
5
9
55
11.0
E
9.0
7.5
7.0
6.0
15
45
75
8.5
10.0
25
35
65
85
105
PLL
10.5
9.5
6.5
8.0
5
0
f
OSCIN
Figure 13. 12-Bit ADC ENOBs vs. Input Frequency
f
IN
(MHz)
5
9
55
60
(
70
80
85
90
15
45
75
75
65
25
35
65
85
105
5
f
OSCIN
PLL
0
Figure 14. 12-Bit ADC THD vs. Input Frequency
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