Datasheet

1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
20dB
Noise(nV/ )Ö
Hz
GainSetting(PGA)
25dB 27dB 30dB
R =0
V =1.2V
TGCI,LowNoise
W
S
CNTL
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
5MHz
2MHz
10MHz
2MHz
5MHz
10MHz
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
20dB
Noise(nV/ )Ö
Hz
GainSetting(PGA)
25dB 27dB 30dB
R =0
V =1.2V
PWMode
W
S
CNTL
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
20dB
Noise(nV/ )Ö
Hz
GainSetting(PGA)
25dB 27dB 30dB
R =0 ,V =1.2V,TGCII,LowPowerW
S CNTL
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
2MHz
5MHz
10MHz
2000
1800
1600
1400
1200
1000
800
600
400
200
0
-0.45
Channel
Gain(dB)
0.05
0.10
0.20
0
0.15
0.45
0.25
0.35
0.30
0.50
0.40
-0.05
-0.15
-0.25
-0.35
-0.50
-0.10
-0.20
-0.30
-0.40
Channel-to-Channel
AFE5804
www.ti.com SBOS442C –JUNE 2008–REVISED OCTOBER 2011
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 PGA INPUT-REFERRED NOISE vs PGA
Figure 21. Figure 22.
GAIN MATCH HISTOGRAM
INPUT-REFERRED NOISE vs PGA (V
CNTL
= 0.1V)
Figure 23. Figure 24.
Copyright © 2008–2011, Texas Instruments Incorporated 17