参数资料
型号: AD9042ASTZ
厂商: Analog Devices Inc
文件页数: 24/24页
文件大小: 0K
描述: IC ADC 12BIT 41MSPS 44-TQFP
标准包装: 1
位数: 12
采样率(每秒): 41M
数据接口: 并联
转换器数目: 3
功率耗散(最大): 735mW
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 44-LQFP
供应商设备封装: 44-LQFP(10x10)
包装: 托盘
输入数目和类型: 1 个单端,双极
产品目录页面: 780 (CN2011-ZH PDF)
AD9042
Rev. B | Page 9 of 24
P
O
W
E
R
E
L
AT
IV
E
T
O
ADC
F
UL
L
S
CAL
E
(
d
B
)
ENCODE = 41MSPS
AIN = 15.3MHz, 19.5MHz
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
dc
4.1
8.2
12.3
16.4
20.5
00
55
4-
0
19
Figure 9. Two Tones at 15.3 MHz and 19.5 MHz
SAMPLE RATE (MSPS)
0
5
c
d5
S
NR
(
d
B)
,
W
O
RS
T
-CA
S
E
S
P
URI
O
US
(d
Bc)
10
15
20
25
30
35
40
45
80
70
65
60
75
SNR
85
AIN = 4.3MHz
WORST SPUR
0
05
54
-02
2
Figure 10. SNR, Worst Harmonic vs. Encode
ENCODE DUTY CYCLE (%)
S
NR
(
d
B
),
W
O
RS
T
-CAS
E
S
P
UR
IO
U
S
(
d
Bc)
90
65
55
45
75
85
80
70
60
50
40
35
30
ENCODE = 41MSPS
AIN = 19.5MHz
WORST SPUR
SNR
25
30
35
40
45
50
55
60
65
70
75
00
55
4-
02
3
Figure 11. SNR, Worst Spurious vs. Duty Cycle
4
P
O
W
E
R
E
L
A
T
IV
E
T
O
ADC
F
UL
L
S
CAL
E
(
d
B)
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
dc
4.1
8.2
12.3
16.4
20.5
ENCODE = 41MSPS
AIN = BROADBAND_NOISE
00
55
4-
0
24
Figure 12. NPR Output Spectrum
ENCODE = 41MSPS
AIN = 19.5MHz @ –29dBFS
NO DITHER
2
4
6
8
7
5
3
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
P
O
W
E
R
RE
L
AT
IV
E
T
O
ADC
F
UL
L
S
CA
L
E
(
d
B
)
dc
4.1
8.2
12.3
16.4
20.5
00
55
4-
0
25
Figure 13. 4K FFT Without Dither
ANALOG INPUT POWER LEVEL (dBFS)
W
O
RS
T
-C
AS
E
S
P
UR
IO
US
(d
Bc)
ENCODE = 41MSPS
AIN = 19.5MHz
NO DITHER
SFDR = 80dB
REFERENCE LINE
100
0
90
60
40
20
10
80
70
50
30
0
–10
–20
–30
–40
–50
–60
–70
–80
00
55
4-
0
26
Figure 14. SFDR Without Dither
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