参数资料
型号: AFE7222IRGCR
厂商: Texas Instruments
文件页数: 61/106页
文件大小: 0K
描述: IC AFE 12BIT 65/130MSPS 64VQFN
标准包装: 2,000
位数: 12
通道数: 4
功率(瓦特): 610mW
电压 - 电源,模拟: 2.85 V ~ 3.6 V
电压 - 电源,数字: 1.7 V ~ 1.9 V
封装/外壳: 64-VFQFN 裸露焊盘
供应商设备封装: 64-VQFN 裸露焊盘(9x9)
包装: 带卷 (TR)
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
68.5
69
69.5
70
70.5
71
71.5
77
78
79
80
81
82
83
Input Clock Amplitude, Differential (Vpp)
SNR
(dBFS)
SFDR
(dBc)
SNR
SFDR
Input Frequency = 10MHz
G013
25
30
35
40
45
50
55
60
65
70
75
69.5
70
70.5
71
71.5
72
72.5
78
80
82
84
86
88
90
Input Clock Duty Cycle (%)
SNR
(dBFS)
THD
(dBC)
SNR
THD
Input Frequency = 10MHz
G014
64
65
66
67
68
69
70
71
72
35
40
45
50
55
60
65
70
75
Input Clock Duty Cycle (%)
SNR
(dBFS)
SNR DCC OFF
SNR DCC ON
Input Frequency = 10MHz
G054
0.3
0.2
0.1
0
0.1
0.2
0.3
250
750
1250
1750
2250
2750
3250
3750
Output Code (LSB)
DNL
(LSB)
G015
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
All plots are at 25°C, AVDD18_ADC=1.8V, DVDD18_CLK=1.8V, DVDD18=1.8V, DVDD18_DAC=1.8V, AVDD3_DAC=3.0V,
AVDD3_AUX=3.0V, maximum rated clock frequency, sine wave input clock. 1.5 VPP differential clock amplitude, 50% clock
duty cycle, –1 dBFS differential analog input, 0 dB gain, CMOS output interface for AFE7222, 32k point FFT (unless
otherwise noted)
SNR and SFDR
SNR and THD
vs
INPUT CLOCK AMPLITUDE
INPUT CLOCK DUTY CYCLE
Figure 6-13. Performance Across Input Clock
Figure 6-14. Performance Across Input Clock Duty
Amplitude
Cycle
SNR
DNL
vs
Input Clock Duty Cycle
OUTPUT CODE
Figure 6-15. SNR vs Input Clock Duty Cycle
Figure 6-16. DNL Plot
58
TYPICAL CHARACTERISTICS FOR AFE7222
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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