参数资料
| 型号： | AD9774ASZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT 32MSPS 44MQFP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 800 |
| 系列： | TxDAC+® |
| 设置时间： | 35ns |
| 位数： | 14 |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 1.13W |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电流，单极；2 电流，双极 |
| 采样率（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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