RF2475PCBA View Datasheet(PDF) - RF Micro Devices
Part Name
Description
MFG CO.
'RF2475PCBA' PDF : 20 Pages View PDF
RF2475
Preliminary
Parameter
Specification
Unit
Min.
Typ.
Max.
Condition
PCS Receive Path, Cont’d
PCS Cascaded
Electrical Specifications
Gain
24
Gain Step
17
Gain Variations versus Tempera-
ture
Noise Figure
Input Third Order Intercept
-12
-2
Return Loss
10
10
10
10
Isolation
40
40
35
8
Half IF Spur6
IF Output Impedance
Supply Current
TX LO Buffer
TAMB=25°C, VCC=2.8V, fRF=1960MHz,
fLO=2095MHz, fIF=135MHz,
LO Level=-7dBm, Image Filter I.L.=3dB
26
28
dB
High Gain, Gain Select=High
6
dB
Low Gain, Gain Select=Low
20
dB
+1.5
dB
-30°C to +85°C
2.8
3.3
dB
High Gain, Gain Select=High
15
20
dB
Low Gain, Gain Select=Low
-10
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=High4
dB
LO IN to LNA IN, Gain Select=Low
37
dB
Image Rejection5
>53
dB
LO IN to IF OUT
>40
dB
Mixer RF IN to IF OUT
35
dB
Mixer RF IN to TX LO OUT
-68
dBc
>10
kΩ
Mixer “ON”
28
33
mA
Including the LO doubler, but not the TX LO
buffer
LO Doubler Output Buffer
-5
-3
dBm
LO Input Level=-7dBm
Harmonic Output
-22
-25
dBc
LO Input Level=-7dBm
Doubler Harmonic Output
-45
-50
dBc
Fundamental Suppression
Isolation - LO OUT to LO IN
35
dB
TX LO Buffer ON
Supply Current
7.5
9.0
mA
Including the LO doubler and the TX LO
buffer
Logic
Input Low
Input High
Input Current
Input Impedance
NOTES:
0.5
V
VCC=2.7V to 2.9V
2.0
V
VCC=2.7V to 2.9V
TBD
µA
TBD
kΩ
4 LO IN to LNA IN isolation specification with the 1900MHz TX LO buffer on.
5 Image rejection measured with fRF=1930MHz, PRF=-105dBm, fLO =2065MHz; PIMAGE =-85dBm, fIMAGE =2220MHz.
Image interferer should be suppressed 11dB below desired signal at the IF output.
6 2LO+2RF Half IF Spur. (1/2 IF spur relative to P1/2RF) fRF=1930MHz, PRF=-105dBm, fLO=2065MHz;
F1/2IF= 1997.5 MHz, P1/2IF= -48dBm.
1/2 IF interferer should be suppressed 11dB below desired signal at the IF output.
8-92
Rev A2 010918
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