Datasheet

160
140
120
100
80
60
40
20
0
0 0.1
1.2
Noise(nV/ )Ö
Hz
V (V)
CNTL
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
PGA= 30dB
PGA=20dB
Frequency=5MHz
PWMode
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1
10
NoiseFigure(dB)
Frequency(MHz)
TGCIMode
PGA=30dB
V =1.2V
CNTL
R =
S
50W
R =400
S
W
R =200
S
W
R =1k
S
W
7
6
5
4
3
2
1
0
1
10
Input-ReferredNoise(nV/ )Ö
Hz
Frequency(MHz)
R =
S
50W
R =400
S
W
TGCIMode
PGA=30dB
V =1.2V
CNTL
R =200
S
W
R =1k
S
W
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
1
10
Noise(nV/ )Ö
Hz
Frequency(MHz)
TGCIMode
PGA=30dB
V =1.2V
CNTL
R =
S
50W
R =400
S
W
R =200W
S
R =1k
S
W
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
1
10
Noise(nV/ )Ö
Hz
Frequency(MHz)
R =
S
50W
R =400
S
W
TGCIIMode
PGA=30dB
V =1.2V
CNTL
R =200W
S
R =1k
S
W
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
1
10
Noise(nV/ )Ö
Hz
Frequency(MHz)
R =
S
50W
R =400
S
W
PWMode
PGA=30dB
V =1.2V
CNTL
R =200W
S
R =1k
S
W
AFE5804
SBOS442C –JUNE 2008–REVISED OCTOBER 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
AVDD_5V = 5.0V, AVDD1 = VDD2 = DVDD = 3.3V, LVDD = 1.8V, single-ended input into LNA, ac-coupled with 1.0μF,
V
CNTL
= 1.0V, f
IN
5MHz, Clock = 40MSPS, 50% duty cycle, internal reference mode, ISET = 56kΩ, LVDS buffer setting =
3.5mA, at ambient temperature T
A
= +25°C, unless otherwise noted.
INPUT-REFERRED NOISE vs V
CNTL
NOISE FIGURE vs FREQUENCY AND R
S
Figure 15. Figure 16.
INPUT-REFERRED NOISE vs FREQUENCY AND R
S
OUTPUT-REFERRED NOISE vs FREQUENCY AND R
S
Figure 17. Figure 18.
OUTPUT-REFERRED NOISE vs FREQUENCY AND R
S
OUTPUT-REFERRED NOISE vs FREQUENCY AND R
S
Figure 19. Figure 20.
16 Copyright © 2008–2011, Texas Instruments Incorporated