RF2475 Ver la hoja de datos (PDF) - RF Micro Devices
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RF2475 Datasheet PDF : 20 Pages
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RF2475
Preliminary
Absolute Maximum Ratings
Parameter
Supply Voltage
Input LO and RF Levels
Operating Ambient Temperature
Storage Temperature
Rating
-0.5 to +5.0
+6
-30 to +85
-40 to +150
Unit
VDC
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
Specification
Unit
Min.
Typ.
Max.
Condition
Cellular Receive Path
Operational Limits
RF Frequency
869
LO Frequency
950
IF Frequency
100
LNA Input Level
LO Input Level
-10
Supply Voltage
2.7
Cellular Cascaded
Electrical Specifications
Gain
23
8
Gain Step
14
Gain Variations versus Tempera-
ture
Noise Figure
Input Third Order Intercept1
-10
-2.0
Return Loss
10
10
10
10
Isolation
60
60
IF Output Impedance
Supply Current
TX LO Buffer
894
MHz
1045
MHz
150
MHz
+10
dBm
-7
-4
dBm
2.8
3.3
V
TAMB=25°C, VCC=2.8V, fRF=881MHz,
fLO=1016MHz, fIF=135MHz,
LO Level=-7dBm, Image Filter I.L.=3dB
25
27
dB
High Gain, Gain Select=High
8
dB
Low Gain, Gain Select=Low
17
dB
+1.5
dB
-30°C to +85°C
2.2
2.6
dB
High Gain, Gain Select=High
15
20
dB
Low Gain, Gain Select=Low
-9
dBm
High Gain, Gain Select=High
-0.5
dBm
Low Gain, Gain Select=Low
dB
LNA Input - External Match
dB
LNA Output - External Match
dB
Mixer RF Input - External Match
dB
Mixer LO Input - External Match
dB
LO IN to LNA IN, Gain Select=High2
dB
LO IN to LNA IN, Gain Select=Low
60
dB
Image Rejection3
50
dB
LO IN to IF OUT
50
dB
Mixer RF IN to IF OUT
35
dB
Mixer RF IN to TX LO OUT
>10
kΩ
Mixer “ON”
20
25
mA
Not including TX LO buffer
LO Output Buffer
-7
-4
dBm
LO Input Level=-7dBm
Harmonic Output
-22
-25
dBc
LO Input Level=-7dBm
Isolation - LO OUT to LO IN
25
dB
TX LO Buffer ON
Supply Current
7.5
9.0
mA
Logic
Input Low
0.5
V
VCC=2.7V to 2.9V
Input High
2.0
V
VCC=2.7V to 2.9V
Input Current
TBD
µA
Input Impedance
NOTES:
TBD
kΩ
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 fRF=869MHz, PRF= -105 dBm, fLO=1004MHz; PIMAGE=-85 dBm, fIMAGE=1139MHz
8-90
Rev A2 010918
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