VCA5807 Datasheet, PDF (18/64 Pages) Texas Instruments – Fully Integrated, 8-Channel Voltage Controlled Amplifier for Ultrasound with Passive CW Mixer, 0.75 nV/rtHz, 99 mW/CH

VCA5807
SLOS727 – DECEMBER 2012
TYPICAL CHARACTERISTICS (continued)
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Figure 42. HD2 vs. Gain, LNA = 24dB and PGA = 24dB and
Vout = -1dBFS
Figure 43. HD3 vs. Gain, LNA = 24dB and PGA = 24dB and
Vout = -1dBFS
Figure 44. IMD3, Fout1 = -7dBFS and Fout2 = -7 dBFS
PSMR vs SUPPLY FREQUENCY
−60
Vcntl = 0
Vcntl = 0.3
Vcntl = 0.6
Vcntl = 0.9
−65
−70
−75
5 10
100
1000 2000
Supply frequency (kHz)
Figure 46. AVDD Power Supply Modulation Ratio, 100mVpp
Supply Noise with Different Frequencies (TGC Mode)
Figure 45. IMD3, Fout1 = -21dBFS and Fout2 = -21dBFS
PSMR vs SUPPLY FREQUENCY
−55
Vcntl = 0
Vcntl = 0.3
−60
Vcntl = 0.6
Vcntl = 0.9
−65
−70
−75
−80
5 10
100
1000 2000
Supply frequency (kHz)
Figure 47. AVDD_5V Power Supply Modulation Ratio,
100mVpp Supply Noise with Different Frequencies (TGC
Mode)
18
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