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參數資料
型號: AD9774ASZ
廠商: Analog Devices Inc
文件頁數: 23/24頁
文件大?。?/td> 0K
描述: IC DAC 14BIT 32MSPS 44-MQFP
產品培訓模塊: DAC Architectures
產品變化通告: Product Discontinuance 27/Oct/2011
標準包裝: 1
系列: TxDAC+®
設置時間: 35ns
位數: 14
數據接口: 并聯
轉換器數目: 1
電壓電源: 模擬和數字
功率耗散(最大): 1.13W
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應商設備封裝: 44-MQFP(10x10)
包裝: 托盤
輸出數目和類型: 2 電流,單極;2 電流,雙極
采樣率(每秒): 32M
10dB
DIV
10
–60
–90
0
128.0
25.6
51.2
76.8
102.4
0
–50
–70
–80
–30
–40
–10
–20
“INBAND”
MHz
Figure 4. Single Tone Spectral Plot
@ 32 MSPS w/fOUT = 12.8 MHz (DC to
4
× CLKIN)
10dB
DIV
10
–60
–90
0
64.0
12.8
25.6
38.4
51.2
–70
–80
0
–50
–30
–40
–10
–20
“INBAND”
MHz
Figure 7. Single Tone Spectral Plot
@ 16 MSPS w/fOUT = 6.4 MHz (DC to
4
× CLKIN)
10dB
DIV
10
–60
–90
0
32.0
6.4
12.8
19.2
25.6
0
–50
–70
–80
–30
–40
–10
–20
MHz
Figure 10. Single Tone Spectral Plot
fOUT @ 8 MSPS w/fOUT = 3.2 MHz (DC
to 4
× CLKIN)
AD9774
–8–
REV. B
Typical AC Characterization Curves
(AVDD = +5 V, PLLVDD = +3 V, DVDD = +3 V, IOUTFS = 20 mA, 50
Doubly Terminated Load, Differential Output, TA = +25 C, unless otherwise
noted. Note: PLLVDD = +5 V and DVDD = +5 V for Figures 4, 5 and 6.)
fOUT – MHz
SFDR
dBc
90
60
02
14
468
10
12
85
80
75
70
65
0dBFS
–6dBFS
–18dBFS
–12dBFS
Figure 5. “Inband” SFDR vs. fOUT
@ 32 MSPS (DC to CLKIN/2)
fOUT – MHz
SFDR
dBc
90
60
0
17
23456
85
80
75
70
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 8. “Inband” SFDR vs. fOUT
@ 16 MSPS (DC to CLKIN/2)
fOUT – MHz
SFDR
dBc
90
60
0
0.5
3.5
1
1.5
2
2.5
3
85
80
75
70
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 11. “Inband” SFDR vs. fOUT
@ 8 MSPS (DC to CLKIN/2)
fOUT – MHz
SFDR
dBc
85
35
0
214
4
6
8
10
12
80
55
50
45
40
70
60
75
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 6. “Out-of-Band” SFDR vs. fOUT
@ 32 MSPS (CLKIN/2 to 3 1/2 CLKIN)
fOUT – MHz
SFDR
dBc
85
35
0
17
23456
80
55
50
45
40
70
60
75
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 9. “Out-of-Band” SFDR vs.
fOUT @ 16 MSPS (CLKIN/2 to 3 1/2
CLKIN)
fOUT – MHz
SFDR
dBc
85
35
0
0.5
3.5
1
1.5
2
2.5
3
80
55
50
45
40
70
60
75
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 12. “Out-of-Band” SFDR vs.
fOUT @ 8 MSPS (CLKIN/2 to 3 1/2
CLKIN)
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