LMH6521_16 Datasheet, PDF (9/29 Pages) Texas Instruments – High Performance Dual DVGA

LMH6521
www.ti.com
SNOSB47D – MAY 2011 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
V+ = 5V, Differential V_OUT = 4V_PP, R_L = 200Ω, T_A=25 °C, f_in = 200 MHz, and Maximum Gain (0 Attenuation)
Second Order Harmonic Distortion at 200 MHz
Third Order Harmonic Distortion at 200 MHz
-40
ATT = 0 dB
ATT = 8 dB
-50
ATT = 16 dB
ATT = 24 dB
-10
ATT = 0 dB
-20
ATT = 8 dB
-30
ATT = 16 dB
ATT = 24 dB
-60
-40
-50
-70
-60
-70
-80
-80
-90
-100
f = 200 MHz
-90
-100
-110
f = 200 MHz
-4 0 4 8 12 16 20
OUTPUT POWER (dBm)
-4 0 4 8 12 16 20
OUTPUT POWER (dBm)
Figure 16.
Figure 17.
Cumulative Gain Error
1.0
Channel A
0.8
Channel B
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
0.5 dB steps
f = 200 MHz
-1.0
0 4 8 12 16 20 24 28 32
ATTENUATION (dB, 0 = MAX GAIN)
Figure 18.
Cumulative Phase Shift
20
Channel A
15
Channel B
10
5
0
-5
-10
-15
0.5 dB steps
f = 200 MHz
-20
0 4 8 12 16 20 24 28 32
ATTENUATION (dB, 0 = MAX GAIN)
Figure 19.
Noise Figure
vs.
Frequency
11
T = - 40 °C
T = 25 °C
10
T = 85 °C
9
8
7
6
5
0 100 200 300 400 500 600 700
FREQUENCY (MHz)
Figure 20.
Noise Figure
vs.
Attenuation
40
100 MHz
200 MHz
35
300 MHz
400 MHz
30
25
20
15
10
5
0 4 8 12 16 20 24 28 32
ATTENUATION (0 = MAX GAIN) (dB)
Figure 21.
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