参数资料
型号: AD9258BCPZ-125
厂商: Analog Devices Inc
文件页数: 15/44页
文件大小: 0K
描述: IC ADC 14BIT 125MSPS DL 64LFCSP
设计资源: High Performance, Dual Channel IF Sampling Receiver (CN0140)
标准包装: 1
位数: 14
采样率(每秒): 125M
数据接口: 串行
转换器数目: 2
功率耗散(最大): 788mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 托盘
输入数目和类型: 2 个差分,单极
AD9258
Rev. A | Page 22 of 44
0
–20
–40
–60
–80
–100
–120
–140
0
10
2030
4050
60
FREQUENCY (MHz)
AM
P
L
IT
UDE
(
d
BF
S
)
08
12
4-
0
22
125MSPS
70.1MHz @ –6dBFS
SNR = 71.6dB (77.6dBFS)
SFDR = 97dBc
SECOND HARMONIC
THIRD HARMONIC
Figure 38. AD9258-125 Single-Tone FFT with fIN = 70.1 MHz @ 6 dBFS
with Dither Enabled
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
–150
FREQUENCY (MHz)
AM
P
L
IT
UD
E
(
d
BF
S
)
08
12
3-
08
8
SECOND HARMONIC
THIRD HARMONIC
0
6
12
18
24
30
36
42
48
54
60
125MSPS
70.1MHz @ –23dBFS
SNR = 56.1dB (79.1dBFS)
SFDR = 67.7dBc
Figure 39. AD9258-125 Single-Tone FFT with fIN = 70.1 MHz @ 23 dBFS
with Dither Disabled, 1M Sample
0
6
12
18
24
30
36
42
48
54
60
FREQUENCY (MHz)
AM
P
L
IT
UD
E
(
d
BF
S
)
08
12
3-
08
9
SECOND HARMONIC
THIRD HARMONIC
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
–150
125MSPS
70.1MHz @ –23dBFS
SNR = 55.4dB (78.4dBFS)
SFDR = 86.2dBc
Figure 40. AD9258-125 Single-Tone FFT with fIN = 70.1 MHz @ 23 dBFS
with Dither Enabled, 1M Sample
120
100
80
60
40
20
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
INPUT AMPLITUDE (dBFS)
S
NR
/S
F
DR
(d
Bc
AND
d
B
F
S
)
08
12
4-
0
23
SNR (dBFS)
SFDR (dBc)
SNR (dBc)
SFDR (dBFS)
Figure 41. AD9258-125 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 2.4 MHz
120
100
80
60
40
20
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
INPUT AMPLITUDE (dBFS)
S
NR
/S
F
DR
(d
Bc
AND
d
B
F
S
)
08
12
4-
0
24
SNR (dBFS)
SFDR (dBc)
SFDR (dBFS)
SNR (dBc)
Figure 42. AD9258-125 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 98.12 MHz
120
110
100
90
80
70
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
INPUT AMPLITUDE (dBFS)
S
NR/
S
F
DR
(
d
BF
S
)
08
12
4-
0
61
SNR (DITHER ON)
SNR (DITHER 0FF)
SFDR (DITHER ON)
SFDR (DITHER 0FF)
Figure 43. AD9258-125 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 30 MHz with and without Dither Enabled
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