參數(shù)資料
型號(hào): AD9865-EB
廠商: Analog Devices, Inc.
英文描述: Broadband Modem Mixed-Signal Front End
中文描述: 寬帶調(diào)制解調(diào)器混合信號(hào)前端
文件頁數(shù): 16/48頁
文件大?。?/td> 1672K
代理商: AD9865-EB
AD9865
TxDAC PATH TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = CLKVDD = DVDD = DRVDD = 3.3 V, f
OSCIN
= 50 MSPS and 80 MSPS, RSET = 1.96 k, 2:1 transformer coupled output
(see Figure 63) into 50 load half- or full-duplex interface, default power bias settings.
Rev. A | Page 16 of 48
0
FREQUENCY (MHz)
d
0
5
10
15
20
30
10
–80
–70
–60
–50
–40
–30
–20
–10
0
Figure 27. Dual-Tone Spectral Plot of TxDAC's Output
(f
DATA
= 50 MSPS, 4× Interpolation, 10 dBm Peak Power,
F1 = 17 MHz, F2 = 18 MHz)
0
2-TONE CENTER FREQUENCY (MHz)
I
(
0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
–65
–90
–85
–80
–75
–70
10dBm
7dBm
4dBm
Figure 28. 2-Tone IMD Frequency Sweep vs. Peak Power
with f
DATA
= 50 MSPS, 4× Interpolation
0
2-TONE CENTER FREQUENCY (MHz)
S
(
0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
–65
–90
–85
–80
–75
–70
10dBm
7dBm
4dBm
Figure 29. 2-Tone Worst Spur Frequency Sweep vs. Peak Power
with f
DATA
= 50 MSPS, 4× Interpolation
0
FREQUENCY (MHz)
d
0
5
10
15
20
25
30
35
40
10
–80
–70
–60
–50
–40
–30
–20
–10
0
Figure 30. Dual-Tone Spectral Plot of TxDAC's Output
(f
DATA
= 80 MSPS, 2× Interpolation, 10 dBm Peak Power,
F1 = 27.1 MHz, F2 = 28.7 MHz)
0
2-TONE CENTER FREQUENCY (MHz)
I
(
0
5
10
15
20
25
30
–65
–90
–85
–80
–75
–70
10dBm
7dBm
4dBm
Figure 31. 2-Tone IMD Frequency Sweep vs. Peak Power
with f
DATA
= 80 MSPS, 2× Interpolation
0
2-TONE CENTER FREQUENCY (MHz)
S
(
0
5
10
15
20
25
30
–65
–90
–85
–80
–75
–70
10dBm
7dBm
4dBm
Figure 32. 2-Tone Worst Spur Frequency Sweep vs. Peak Power
with f
DATA
= 80 MSPS, 2× Interpolation
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