ISL3685
Typical Performance Curves
VCC = 3.30V
RF = 1.7GHz TO 3.0GHz
ROOM TEMP
Pin = -30.dBm
NO MATCH
NETWORK
5
3
1
SCALE
5dB/DIV
5
3
1
VCC = 3.30V
RF = 2.0GHz TO 3.0GHz
ROOM TEMP
Pin = -30.dBm
Marker 1 = 1.7GHz, Real = 16.7Ω, Imaginary = -31.8Ω
Marker 3 = 2.45GHz, Real = 15.0Ω, Imaginary = -8.0Ω
Marker 5 = 3.0GHz, Real = 16.5Ω, Imaginary = 10.5Ω
FIGURE 3. S11 LNA in HIGH GAIN
Marker 1 = 1.7GHz, 7.0dB
Marker 3 = 2.45GHz, 15.3dB
Marker 5 = 3.0GHz, 12.5dB
FIGURE 4. S21 LNA in HIGH GAIN
SCALE
10dB/DIV
VCC = 3.30V
RF = 2.0GHz TO 3.0GHz
ROOM TEMP
Pin = -30.dBm
NO MATCH
NETWORK
5
1
3
VCC = 3.30V
RF = 2.0GHz TO 3.0GHz
ROOM TEMP
Pin = -30.dBm
234
5
1
Marker 1 = 1.7GHz, -46.4dB
Marker 3 = 2.45GHz, -44.1dB
Marker 5 = 3.0GHz, -35.4dB
FIGURE 5. S12 LNA in HIGH GAIN
Marker 1 = 1.7GHz, Real = 8.2Ω, Imaginary = -43.5Ω
Marker 3 = 2.45GHz, Real = 39.4Ω, Imaginary = 19.4Ω
Marker 5 = 3.0GHz, Real = -50.6Ω, Imaginary = -45.4Ω
FIGURE 6. S22 LNA in HIGH GAIN
11