Preliminary
8-91
RF2475
Rev A2 010918
8
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Cellular Receive Path,
Cont’d
Cellular Block Level
Electrical Specifications
Low Noise Amplifier
Frequency Range
869
894
MHz
Gain
20
dB
High Gain, Gain Select= High
3
6
dB
Low Gain, Gain Select= Low
Gain Step
14
17
dB
Gain Variations versus Tempera-
ture
+1.0
dB
-30°C to +85°C
Noise Figure
1.4
1.6
dB
High Gain, Gain Select= High
dB
Low Gain, Gain Select= Low
Input Third Order Intercept
-3
0
dBm
High Gain, Gain Select= High
-3
0
dBm
Low Gain, Gain Select= Low
Terminating Impedance
50
Ω
External Match
Supply Current
6
8
mA
High Gain, Gain Select= High
6
8
mA
Low Gain, Gain Select= Low
Logic Input Low
0.5
V
VCC=2.7V to 2.9V
Logic Input High
2.0
V
VCC=2.7V to 2.9V
Mixer and LO Buffer
Frequency Range, Mixer Input
869
894
MHz
Frequency Range, IF Output
85
150
MHz
Frequency Range, LO Input
950
1045
MHz
Conversion Gain
7
8
9
dB
Noise Figure (SSB)
11
12
dB
Input Third Order Intercept
7
8
dBm
Terminating Impedance,
Mixer In, LO In, LO Out
50
Ω
External Match
Terminating Impedance,
Mixer In, LO In, LO Out
Return Loss
10
Ω
External Match
Terminating Impedance,
IF Out
>10
k
Ω
Mixer “ON”
Mixer Supply Current
14
19
mA
LO Input Level
-10
-7
-4
dBm
LO Buffer Supply Current
7.5
9.0
mA
LO Output Level
-7
-4
dBm
PCS Receive Path
Operational Limits
RF Frequency
1930
1990
MHz
Frequency Range, LO Input to
Doubler
1015
1039
1063
MHz
LO input to device at LO IN8.
Frequency Range, Doubler Out-
put
2030
2078
2126
MHz
Internal output of LO doubler driving the
mixer and TX LO buffer.
IF Frequency
100
150
MHz
LNA Input Level
+10
dBm
LO Input Level
-10
-7
-4
dBm
Supply Voltage
2.7
2.8
3.3
V
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