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Preliminary
8-37
RF2492
Rev A4 010828
8
State Table (Typical Values for VCC=2.75V and 3dB RF Filter Insertion Loss)
Control Logic Table
Parameter
Cellular
PCS
LNA On
LNA Off
LNA On
LNA Off
LNA at Max IIP3 LNA at Nom IIP3
LNA at Max IIP3 LNA at Nom IIP3
Mixer
Amp On
Mixer
Amp Off
Mixer
Amp On
Mixer
Amp Off
Mixer
Amp On
Mixer
Amp Off
Mixer
Amp On
Mixer
Amp Off
Mixer
Amp On
Mixer
Amp Off
Mixer
Amp On
Mixer
Amp Off
Cascade
Gain (dB)
24.5
15.9
24
15.4
2
-6.8
24.3
15.3
23.5
14.5
4
-5
Noise Figure (dB)
2.8
5.3
2.7
5.4
18.2
25.2
2.6
5.7
3.1
6.3
17
24
Input IP3 (dBm)
-6.5
+1.1
-6.4
0
+14.9
+19.5
-6
+3
-5.6
+1.5
+14
+21.7
Total Current
38
36
32
26
40
38.5
34.5
28
LNA
Gain (dB)
14.5
14.5
14
14
-7.5
-7.5
14.8
14.8
14
14
-5.5
-5.5
Noise Figure (dB)
2.0
2.0
1.8
1.8
5.8
5.8
1.5
1.5
1.8
1.8
6.2
6.2
Input IP3 (dBm)
+7.5
+7.5
+3
+3
+21
+21
+9
+9
+3.5
+3.5
25
25
Isolation (dB)
LNA Current (mA)
Mixer
Gain (dB)
13
4.4
13
4.4
13
4.4
12.5
3.5
12.5
3.5
12.5
3.5
Noise Figure (dB)
7
14
7
14
7
14
8.5
15.5
8.5
15.5
8.5
15.5
Input IP3 (dBm)
+5.1
+13.8
+5.1
+13.8
+5.1
+13.8
+6
+16
+6
+16
+6
+16
LO Input Level (dBm)
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
LO to RF Isolation(dB)
Mixer Current (mA)
BAND SEL
IF SEL
LNA GAIN
MIX GAIN
LNA IP SEL
ENABLE
PCS IF2 High Gain/High
Linearity
1011
11
PCS IF2 High Gain/Nomi-
nal Linearity
1011
01
PCS IF2 Mid1 Gain
1010
01
PCS IF2 Mid2 Gain
1001
01
PCS IF2 Low Gain
1000
01
Cell IF2 High Gain/
High Linearity
0011
11
Cell IF2 High Gain/Nomi-
nal Linearity
0011
01
Cell IF2 Mid1 Gain
0010
01
Cell IF2 Mid2 Gain
0001
01
Cell IF2 Low Gain
0000
01
Cell IF1 High Gain/
High Linearity
0111
11
Cell IF1 High Gain/
Nominal Linearity
0111
01
Cell IF1 Mid1 Gain
0110
01
Cell IF1 Mid2 Gain
0101
01
Cell IF1 Low Gain
0100
01
Shutdown
XXXX
X
0
Not Defined
1
1
X
X
X
1
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