典型性能特性， AD9057
0
–10
–20
–30
ENCODE = 60MSPS
ANALOG IN = 10.3MHz ， -0.5dBFS
SINAD = 46.1分贝
ENOB = 7.36 BITS
SNR = 46.5分贝
–30
–35
–40
–45
ENCODE = 60MSPS
AIN = -0.5dBFS
–40
dB
2
ND
谐波
dB
–50
–55
–50
–60
–70
–80
–90
3
RD
谐波
–60
–65
–70
0
20
40
60
80
100
120
140
160
模拟输入频率 - MHz的
0
频率 - 兆赫
30
图2.频谱图60 MSPS ， 10.3兆赫
图5.谐波失真与频率AIN
0
ENCODE = 60MSPS
-10 ANALOG IN = 76MHZ ， -0.5dBFS
SINAD = 44.9分贝
ENOB = 7.16 BITS
-20 SNR = 45.2分贝
–30
–40
dB
0
–10
–20
–30
–40
dB
ENCODE = 60MSPS
F1 IN =具有9.5MHz @ -7.0dBFS
F2 IN = 9.9MHz @ -7.0dBFS
2F1 - F2 = -52.0dBc
2F2 - F1 = -53.0dBc
–50
–60
–70
–80
–90
–50
–60
–70
–80
–90
0
频率 - 兆赫
30
0
10
20
频率 - 兆赫
30
图3.频谱图60 MSPS ， 76 MHz的
图6.双音互调失真
48
46
44
42
40
SINAD
dB
54
SNR
48
42
SNR
SINAD
36
30
AIN = 10.3MHz ， -0.5dBFS
24
dB
38
36
ENCODE = 60MSPS
AIN = -0.5dBFS
18
34
32
30
0
12
0
20
40
60
80
100
120
模拟输入频率 - MHz的
140
160
5
10
20
30
40
50
60
编码速率 - MSPS
70
80
90
图4. SINAD / SNR与AIN频率
图7. SINAD / SNR与编码速率
版本B
–5–
AD [ ANALOG DEVICES ]
