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RF2460
Rev B5 060921
Special Instructions (Board loss, taking into consideration description in the schematic)
LNA
VCC1=VCC2=Enable=2.75V; Mix Gain=0.0V
To measure ICC LNA only:
LNA Gain was switched between 0V and 2.75V, and record the delta current.
Mixer
VCC1=VCC2=Enable=Mix Gain=2.75V; LNA Gain=0.0V
To measure ICC Mixer (LNA should be in bypass mode and LO signal should be present):
Mixer Current=Total IC Current-LO Circuitry (~4.23mA) (See “Current Measurement” section for more details)
VCC2 only affects LO current buffer and R6 doesn’t affect the mixer current.
LNA Gain, Noise Figure and IIP3 versus ICC - LNA Only
(LNA High Gain)
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
1.0
3.0
5.0
7.0
9.0
11.0
13.0
15.0
X Axis Label (units)
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
Gain (dB)
NF (dB)
IIP3 (dBm)
Mixer Gain, Noise Figure and IIP3 versus ICC - Mixer
(Mixer High Gain, LO = -7 dBm)
-20.0
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
20.0
25.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
ICC (mA)
-15.0
-10.0
-5.0
0.0
5.0
10.0
Gain (dB)
NF (dB)
IIP3 (dBm)
Resistor (R6) versus ICC (mA) - LNA Only
(LNA High Gain)
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
180.0
200.0
1.0
3.0
5.0
7.0
9.0
11.0
13.0
15.0
ICC (mA)
Resistor (R3) versus ICC - Mixer
(Mixer High Gain, LO = 2170 @ -7 dBm)
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
180.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
ICC (mA)
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