參數(shù)資料
型號(hào): AD9774ASZ
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 24/24頁(yè)
文件大?。?/td> 0K
描述: IC DAC 14BIT 32MSPS 44-MQFP
產(chǎn)品培訓(xùn)模塊: DAC Architectures
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標(biāo)準(zhǔn)包裝: 1
系列: TxDAC+®
設(shè)置時(shí)間: 35ns
位數(shù): 14
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
功率耗散(最大): 1.13W
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 托盤(pán)
輸出數(shù)目和類(lèi)型: 2 電流,單極;2 電流,雙極
采樣率(每秒): 32M
AD9774
–9–
REV. B
10dB
DIV
10
–90
0
1.0
8.0
2.0
3.0
4.0
5.0
6.0
7.0
0
–30
–40
–60
–80
–10
–20
–50
–70
MHz
Figure 13. Single Tone Spectral Plot
@ 2 MSPS w/fOUT = 800 kHz (DC to
4
× CLKIN)
AIN – dBFS
SFDR
dBc
90
60
–18 –16
0
–14 –12 –10
–6
–4
–2
–8
85
80
75
70
65
1.45MHz @ 16MSPS
363kHz @ 4MSPS
727kHz @ 8MSPS
2.9MHz @ 32MSPS
Figure 16. “In-Band” Single Tone
SFDR vs. AIN @ fOUT = fCLOCK/7
(DC to CLKIN/2)
AOUT – dBFS
SFDR
dBc
80
50
–18 –16
0
–14 –12 –10
–6
–4
–2
–8
75
70
65
60
55
5.6/6.4MHz @ 16MSPS
1.4/1.6MHz @ 4MSPS
2.8/3.2MHz @ 8MSPS
11.2/12.8MHz @ 32MSPS
Figure 19. “In-Band” Two Tone
SFDR vs. AOUT @ fOUT = fCLOCK/2.7
(DC to CLKIN/2)
fOUT – MHz
SFDR
dBc
90
60
0.1
0.2
0.8
0.3
0.4
0.5
0.6
0.7
85
80
75
70
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 14. “Inband” SFDR vs. fOUT
@ 2 MSPS (DC to CLKIN/2)
AIN – dBFS
SFDR
dBc
85
35
–18 –16
0
–14 –12 –10
–6
–4
–2
–8
80
60
50
45
40
75
70
55
65
1.45MHz @ 16MSPS
363kHz @ 4MSPS
727kHz @ 8MSPS
2.9MHz @ 32MSPS
Figure 17. Out-of-Band Single Tone
SFDR vs. AIN @ fOUT = fCLOCK/7
(DC to 3 1/2 CLKIN)
AOUT – dBFS
SFDR
dBc
85
35
–18 –16
0
–14 –12 –10
–6
–4
–2
–8
80
60
50
45
40
75
70
55
65
5.6/6.4MHz @ 16MSPS
1.4/1.6MHz @ 4MSPS
2.8/3.2MHz @ 8MSPS
11.2/12.8MHz @ 32MSPS
Figure 20. “Out-of-Band” Two Tone
SFDR vs. AOUT @ fOUT = fCLOCK/2.7
(DC to 3 1/2 CLKIN)
fOUT – MHz
SFDR
dBc
85
35
0
0.2
0.8
0.3
0.4
0.5
0.6
0.7
80
55
50
45
40
70
60
75
65
0dBFS
–6dBFS
–12dBFS
–18dBFS
Figure 15. “Out-of-Band” SFDR
vs. fOUT @ 2 MSPS (CLKIN/2 to
3 1/2 CLKIN)
fCLK – MSPS
SNR
dB
80
75
60
10
20
30
70
65
DVDD = 3.3V
DVDD = 5.0V
Figure 18. SNR vs. fCLKIN @ fOUT =
2 MHz (DC to CLKIN/2)
10dB
DIV
–10
–80
–110
0
128.0
25.6
51.2
76.8
102.4
–20
–70
–90
–100
–50
–60
–30
–40
Figure 21. Multitone Spectral Plot
@ 32 MSPS (DC to 4
× CLKIN)
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