RF2460
US-PCS
LNA Gain, Noise Figure and IIP3 versus ICC - LNA Only
(LNA High Gain)
Resistor (R6) versus ICC (mA) - LNA Only
(LNA High Gain)
18.0
16.0
14.0
12.0
10.0
8.0
15.0
200.0
180.0
160.0
140.0
120.0
100.0
80.0
10.0
5.0
0.0
Gain (dB)
NF (dB)
6.0
-5.0
-10.0
-15.0
60.0
IIP3 (dBm)
4.0
40.0
2.0
20.0
0.0
0.0
1.0
3.0
5.0
7.0
9.0
11.0
13.0
15.0
1.0
3.0
5.0
7.0
9.0
11.0
13.0
15.0
X Axis Label (units)
ICC (mA)
Mixer Gain, Noise Figure and IIP3 versus ICC - Mixer
(Mixer High Gain, LO = -7 dBm)
Resistor (R3) versus ICC - Mixer
(Mixer High Gain, LO = 2170 @ -7 dBm)
25.0
20.0
15.0
10.0
5.0
10.0
5.0
180.0
160.0
140.0
120.0
100.0
80.0
0.0
0.0
-5.0
-10.0
-15.0
-5.0
60.0
Gain (dB)
NF (dB)
-10.0
-15.0
-20.0
40.0
IIP3 (dBm)
20.0
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
ICC (mA)
ICC (mA)
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)
CC2 only affects LO current buffer and R6 doesn’t affect the mixer current.
V
8-98
Rev B5 060921
RFMD [ RF MICRO DEVICES ]
