LMH6401_16 Datasheet, PDF (15/48 Pages) Texas Instruments – LMH6401 DC to 4.5 GHz, Fully-Differential, Digital Variable-Gain Amplifier

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LMH6401
SBOS730A – APRIL 2015 – REVISED MAY 2015
Typical Characteristics (continued)
At T_A = 25°C, VS– = –2.5 V, VS+ = 2.5 V, VOCM = 0 V, R_LOAD = 200-Ω differential (R_{o(internal, diff)} = 20 Ω), V_O = 2 V_PPD, and A_V
= 26 dB, unless otherwise noted. Differential input and output, and input and output pins referenced to mid-supply, unless
otherwise noted. Measured using an EVM as discussed in the Parameter Measurement Information section.
2.5
2.5
2.5
2.5
SCLK
SCLK
2
Vo(pp)diff
2
2
Vo(pp)diff
2
1.5
1.5
1.5
1.5
1
1
1
1
0.5
0.5
0.5
0.5
0
0
0
0
-0.5
-0.5
-0.5
-0.5
-1
-1
-1
-1
Time (5 nsec/div)
Time (5 nsec/div)
D031
D032
Figure 37. Gain Switching Response (A_V = 26 dB to 18 dB)
2.5
2.5
SCLK
2
Vo(pp)diff
2
1.5
1.5
1
1
0.5
0.5
0
0
-0.5
-0.5
-1
-1
Time (5 nsec/div)
D035
Figure 38. Gain Switching Response (A_V = 18 dB to 26 dB)
2.5
2.5
SCLK
2
Vo(pp)diff
2
1.5
1.5
1
1
0.5
0.5
0
0
-0.5
-0.5
-1
-1
Time (5 nsec/div)
D036
Figure 39. Gain Switching Response (A_V = 26 dB to 10 dB)
2.5
2.5
SCLK
2
Vo(pp)diff
2
1.5
1.5
1
1
0.5
0.5
0
0
-0.5
-0.5
-1
-1
Time (5 nsec/div)
D033
Figure 40. Gain Switching Response (A_V = 10 dB to 26 dB)
2.5
2.5
SCLK
2
Vo(pp)diff
2
1.5
1.5
1
1
0.5
0.5
0
0
-0.5
-0.5
-1
-1
Time (5 nsec/div)
D034
Figure 41. Gain Switching Response (A_V = 26 dB to 2 dB)
Figure 42. Gain Switching Response (A_V = 2 dB to 26 dB)
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