RF2475
Absolute Maximum Ratings
Parameter
Supply Voltage
Input LO and RF Levels
Operating Ambient Temperature
Storage Temperature
Preliminary
Rating
-0.5 to +5.0
+6
-30 to +85
-40 to +150
Unit
V
DC
dBm
°C
°C
Caution!
ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Parameter
Cellular Receive Path
Operational Limits
RF Frequency
LO Frequency
IF Frequency
LNA Input Level
LO Input Level
Supply Voltage
Specification
Min.
Typ.
Max.
Unit
Condition
869
950
100
-10
2.7
-7
2.8
894
1045
150
+10
-4
3.3
MHz
MHz
MHz
dBm
dBm
V
T
AMB
=25°C, V
CC
=2.8V, f
RF
=881MHz,
f
LO
=1016MHz, f
IF
=135MHz,
LO Level=-7dBm, Image Filter I.L.=3dB
High Gain, Gain Select=High
Low Gain, Gain Select=Low
-30°C to +85°C
High Gain, Gain Select=High
Low Gain, Gain Select=Low
High Gain, Gain Select=High
Low Gain, Gain Select=Low
LNA Input - External Match
LNA Output - External Match
Mixer RF Input - External Match
Mixer LO Input - External Match
LO IN to LNA IN, Gain Select=High
2
LO IN to LNA IN, Gain Select=Low
Image Rejection
3
LO IN to IF OUT
Mixer RF IN to IF OUT
Mixer RF IN to TX LO OUT
Mixer “ON”
Not including TX LO buffer
LO Input Level=-7dBm
LO Input Level=-7dBm
TX LO Buffer ON
Cellular Cascaded
Electrical Specifications
Gain
23
14
25
8
17
27
dB
dB
dB
dB
dB
dB
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
mA
dBm
dBc
dB
mA
V
V
µA
kΩ
8
FRONT-ENDS
Gain Step
Gain Variations versus Tempera-
ture
Noise Figure
Input Third Order Intercept
1
Return Loss
+1.5
2.2
15
-9
-0.5
2.6
20
-10
-2.0
10
10
10
10
60
60
Isolation
60
50
50
35
>10
20
-7
-22
25
-4
-25
7.5
9.0
0.5
2.0
TBD
TBD
IF Output Impedance
Supply Current
25
TX LO Buffer
LO Output Buffer
Harmonic Output
Isolation - LO OUT to LO IN
Supply Current
Logic
Input Low
Input High
Input Current
Input Impedance
V
CC
=2.7V to 2.9V
V
CC
=2.7V to 2.9V
NOTES:
1 LNA input IP3 response to out of band frequencies (824Hz to 849MHz) should be -6dBm in high gain mode.
2 LO IN to LNA IN isolation specification with the 900MHz TX LO buffer on.
3 Image rejection measured with f
RF
=869MHz, P
RF
=-105dBm, f
LO
=1004MHz; P
IMAGE
=-85dBm, f
IMAGE
=1139MHz
8-90
Rev A2 010918
RFMD [ RF MICRO DEVICES ]
