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AFE7900IALK 数据表(PDF) 64 Page - Texas Instruments

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部件名 AFE7900IALK
功能描述  AFE7900 4T6R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs
PDF  157 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

AFE7900IALK 数据表(HTML) 64 Page - Texas Instruments

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6.12.6 RX Typical Characteristics 4.9GHz
Typical values at TA = +25°C, ADC Sampling Rate = 2949.12 GHz. Default conditions: output sample rate = 491.52MSPS
(decimate by 6), PLL clock mode with fREF = 491.52MHz, AIN = –3 dBFS, DSA setting = 4 dB.
Output Frequency (MHz)
4700
4800
4900
5000
5100
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
DSA=4dB
DSA=6dB
DSA=8dB
DSA=10dB
DSA=12dB
DSA=14dB
With matching, normalized to power at 4.9GHz for each DSA
setting
Figure 6-173. RX Inband Gain Flatness, fIN = 4900 MHz
Temperature (qC)
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
-2.3
-2
-1.7
-1.4
-1.1
-0.8
-0.5
-0.2
0.1
0.4
0.7
1
1RX
2RX
3RX
4RX
With 4.9 GHz matching, normalized to fullscale at 25°C for
each channel
Figure 6-174. RX Input Fullscale vs Temperature and Channel at
4.9 GHz
Temperature (qC)
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
-35
-25
-15
-5
5
15
25
35
45
55
65
1RX
2RX
3RX
4RX
With 4.9 GHz matching, normalized to phase at 25°C
Figure 6-175. RX Input Phase vs Temperature and DSA at fOUT =
4.9 GHz
DSA (dB)
0
5
10
15
20
25
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
1RX
2RX
3RX
4RX
With 4.9 GHz matching
Differential Amplitude Error = PIN(DSA Setting – 1) – PIN(DSA
Setting) + 1
Figure 6-176. RX Uncalibrated Differential Amplitude Error vs
DSA Setting at 4.9 GHz
DSA (dB)
0
5
10
15
20
25
-0.025
-0.02
-0.015
-0.01
-0.005
0
0.005
0.01
0.015
0.02
0.025
0.03
1RX
2RX
3RX
4RX
With 4.9 GHz matching
Differential Amplitude Error = PIN(DSA Setting – 1) – PIN(DSA
Setting) + 1
Figure 6-177. RX Calibrated Differential Amplitude Error vs DSA
Setting at 4.9 GHz
DSA (dB)
0
5
10
15
20
25
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
1RX
2RX
3RX
4RX
With 4.9 GHz matching
Integrated Amplitude Error = PIN(DSA Setting) – PIN(DSA
Setting = 0) + (DSA Setting)
Figure 6-178. RX Uncalibrated Integrated Amplitude Error vs
DSA Setting at 4.9 GHz
AFE7900
SBASA44A – AUGUST 2021 – REVISED MARCH 2022
www.ti.com
64
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Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: AFE7900



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