Datasheet

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Second-OrderHarmonicDistortion(dBc)
Third-OrderHarmonicDistortion(dBc)
50 100 150 200 250 300
Frequency(MHz)
0
Gain= 6dB-
Gain=0dB
Dashedlines:2ndHarmonic
Solidlines:3rdHarmonic
V =3V
R =100
OUT PP
L
W
Gain=+10dB
Gain=+20dB
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Second-OrderHarmonicDistortion(dBc)
Third-OrderHarmonicDistortion(dBc)
50 100 150 200 250 300
Frequency(MHz)
0
Gain= 6dB-
Gain=0dB
Dashedlines:2ndHarmonic
Solidlines:3rdHarmonic
V =3V
R =200
OUT PP
L
W
Gain=+10dB
Gain=+20dB
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Second-OrderHarmonicDistortion(dBc)
Third-OrderHarmonicDistortion(dBc)
50 100 150 200 250 300
Frequency(MHz)
0
Gain= 6dB-
Gain=0dB
Dashedlines:2ndHarmonic
Solidlines:3rdHarmonic
V =3V
R =500
OUT PP
L
W
Gain=+10dB
Gain=+20dB
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65
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85
90
95
100
105
110
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50
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60
65
70
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85
90
95
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Second-OrderHarmonicDistortion(dBc)
Third-OrderHarmonicDistortion(dBc)
50 100 150 200 250 300
Frequency(MHz)
0
Gain= 6dB-
Gain=0dB
Dashedlines:2ndHarmonic
Solidlines:3rdHarmonic
V =3V
R =1k
OUT PP
L
W
Gain=+10dB
Gain=+20dB
PGA870
www.ti.com SBOS436A –DECEMBER 2009–REVISED FEBRUARY 2011
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, V
S+
= +5 V, differential input signal, differential V
OUT
= 2 V
PP
, R
L
= 200 Ω differential, G = +20 dB, and input and
output common-mode at internal midsupply reference, unless otherwise noted.
HARMONIC DISTORTION vs FREQUENCY HARMONIC DISTORTION vs FREQUENCY
(V
OUT
= 3 V
PP
) (V
OUT
= 3 V
PP
)
Figure 27. Figure 28.
HARMONIC DISTORTION vs FREQUENCY HARMONIC DISTORTION vs FREQUENCY
(V
OUT
= 3 V
PP
) (V
OUT
= 3 V
PP
)
Figure 29. Figure 30.
© 2009–2011, Texas Instruments Incorporated 11
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