參數資料
型號: AD6644ASTZ-65
廠商: Analog Devices Inc
文件頁數: 2/24頁
文件大?。?/td> 0K
描述: IC ADC 14BIT 65MSPS CMOS 52-LQFP
標準包裝: 1
位數: 14
采樣率(每秒): 65M
數據接口: 并聯(lián)
轉換器數目: 4
功率耗散(最大): 1.3W
電壓電源: 模擬和數字
工作溫度: -25°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 52-LQFP
供應商設備封裝: 52-LQFP(10x10)
包裝: 托盤
輸入數目和類型: 1 個差分,雙極
AD6644
Rev. D | Page 10 of 24
ANALOG FREQUENCY (MHz)
HARM
O
N
IC
S
(
d
Bc)
95
75
60
55
85
65
80
100
70
90
WORST OTHER SPUR
HARMONICS (SECOND, THIRD)
0
102030
4050
6070
8090
100
ENCODE = 65MSPS
AIN = –1dBFS
00
97
1-
010
Figure 10. Harmonics vs. Analog Frequency (IF)
ANALOG INPUT POWER LEVEL (dBFS)
W
O
RS
T
-CAS
E
S
P
URI
O
U
S
(
d
BF
S
an
d
B
c)
100
50
10
0
90
40
70
120
20
30
60
80
110
dBc
dBFS
ENCODE = 65MSPS
AIN = 15.5MHz
SFDR = 90dB
REFERENCE LINE
–80
–70
–60
–50
–40
–30
–20
–10
0
00
97
1-
011
Figure 11. Single-Tone SFDR
FREQUENCY (MHz)
0
–120
–130
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
(d
B
F
S
)
0
5
10
15
20
25
30
ENCODE = 65MSPS
AIN = 19MHz,
19.5MHz @ –7dBFS
NO DITHER
00
97
1-
012
Figure 12. Two Tones at 19 MHz and 19.5 MHz
FREQUENCY (MHz)
0
–120
–130
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
(d
B
F
S
)
0
5
10
15
20
25
30
ENCODE = 65MSPS
AIN = 15MHz,
15.5MHz @ –7dBFS
NO DITHER
00
97
1-
013
Figure 13. Two Tones at 15 MHz and 15.5 MHz
W
O
RS
T
-CAS
E
S
P
URI
O
US
(
d
BF
S
a
n
d
B
c) 100
50
10
0
90
40
70
20
30
60
80
110
dBFS
dBc
ENCODE = 65MSPS
F1 = 15MHz
F2 = 15.5MHz
SFDR = 90dB
REFERENCE LINE
INPUT POWER LEVEL [(F1 = F2) dBFS]
–77
–67
–57
–47
–37
–27
–17
–7
00
97
1-
0
14
Figure 14. Two-Tone SFDR
ENCODE FREQUENCY (MHz)
S
NR,
W
O
RS
T
S
P
URI
O
U
S
(
d
B
an
d
B
c)
65
60
95
75
85
70
80
90
100
WORST SPUR
SNR
AIN = 2.2MHz @ –1dBFS
0
102030405060708090
00
97
1-
015
Figure 15. SNR, Worst Spurious vs. Encode
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