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AFE5804 Datasheet(PDF) 27 Page - Texas Instruments

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Part # AFE5804
Description  FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END FOR ULTRASOUND 0.89nV/?숰z, 12-Bit, 40MSPS, 101mW/Channel
PDF  60 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AFE5804 Datasheet(HTML) 27 Page - Texas Instruments

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1.0
0.5
0
-
-
0.5
1.0
Time( s)
m
0
10
5
TGCIMode
PGA=30dB
V
=0Vto1.2V,40MSPS
CNTL
15
V
CNTL
1.0
0.5
0
-
-
0.5
1.0
Time( s)
m
0
20
10
TGCIMode
PGA=30dB
V
=0.4V,40MSPS
CNTL
30
5
15
25
PD
On=25 s
Off=15 s
m
m
68
67
66
65
64
63
62
61
60
59
58
57
56
V
(V)
CNTL
0
1.2
0.3
0.2
0.1
0.4
1.1
0.5
1.0
0.9
0.8
0.7
0.6
SNR
SNRD
TGCIMode
Input= 44.2dBm
Frequency=5MHz
-
PGA=30dB
PGA=20dB
9k
8k
7k
6k
5k
4k
3k
2k
1k
0
100M
100
80
60
40
20
0
-100
-80
-20
-40
-60
Frequency(Hz)
100k
1M
10M
Magnitude(Z )
IN
Phase
120
100
80
60
40
20
0
ADCFrequency(MSPS)
10
50
40
30
20
AVDD1
LVDD
0
-
-
-
-
-
-
20
40
60
80
100
120
Frequency(MHz)
1.80
2.20
1.95
1.90
1.85
2.00
TGCIMode
PGA=30dB
V
=1V
CNTL
2.05
2.10
2.15
-32
-6
-85
AFE5804
www.ti.com ................................................................................................................................................ SBOS442A – JUNE 2008 – REVISED SEPTEMBER 2008
TYPICAL CHARACTERISTICS (continued)
AVDD_5V = 5.0V, AVDD1 = VDD2 = DVDD = 3.3V, LVDD = 1.8V, single-ended input into LNA, ac-coupled with 1.0
µF,
VCNTL = 1.0V, fIN 5MHz, Clock = 40MSPS, 50% duty cycle, internal reference mode, ISET = 56kΩ, LVDS buffer setting =
3.5mA, at ambient temperature TA = +25°C, unless otherwise noted.
VCNTL RESPONSE TIME
PARTIAL POWER-DOWN/POWER-UP RESPONSE TIME
Figure 79.
Figure 80.
SNR AND SNRD vs VCNTL
MAGNITUDE AND PHASE vs FREQUENCY
Figure 81.
Figure 82.
INTERMODULATION DISTORTION
MSPS vs LVDD AND AVDD1 CURRENTS
(1.99MHz and 2.01MHz)
Figure 83.
Figure 84.
Copyright © 2008, Texas Instruments Incorporated
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