RF2489 Просмотр технического описания (PDF) - RF Micro Devices
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RF2489 Datasheet PDF : 16 Pages
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Preliminary
RF2489
Cascaded Performance (Typical Values for VCC=2.75V)
NOTE: All total current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode).
Parameter
CELL CDMA
LNA ON
LNA OFF
LNA ON
LNA OFF
Mixer Preamp On
Mixer Preamp Off
Cascaded:
Gain (dB)
24.5
5.5
15.0
-4.0
Noise Figure (dB)
2.2
15.0
5.1
22.0
Input IP3 (dBm)
-6.6
+12.3
+1.9
+19.5
LO to IF Isolation (dB)
30
30
30
IF1 to RF Isolation (dB)
40
40
40
IF2 to RF Isolation (dB)
40
40
40
LO to LNA IN Isolation (dB)
40
40
40
Total Current (mA)
27.5
23.0
23.0
NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off.
Numbers represent low current LNA bias setting IPSET=0.
30
40
40
40
18.5
Parameter
FM
LNA ON
LNA OFF
LNA ON
LNA OFF
Mixer Preamp On
Mixer Preamp Off
Cascaded:
Gain (dB)
24.0
5.0
15.0
-4.0
Noise Figure (dB)
2.2
15.0
5.1
22.0
Input IP3 (dBm)
-6.1
+12.7
+2.7
+20.8
8
LO to IF Isolation (dB)
30
30
30
30
IF1 to RF Isolation (dB)
40
40
40
40
IF2 to RF Isolation (dB)
40
40
40
40
LO to LNA IN Isolation (dB)
40
40
40
40
Total Current (mA)
27.5
23.0
23.0
18.5
NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off.
Numbers represent low current LNA bias setting IPSET=0.
Parameter
Cascaded:
Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
PCS CDMA
LNA ON
LNA at Max IIP3, IPSET=1
LNA at Min IIP3, IPSET=0
Mixer Amp ON Mixer Amp OFF Mixer Amp ON Mixer Amp OFF
LNA OFF
Mixer Amp ON Mixer Amp OFF
26.0
17.0
25.0
15.5
5.0
-4.0
2.2
4.7
2.3
5.2
16.0
23.0
-9.0
-0.6
-8.5
-2.0
+11.8
+19.8
LO to IF Isolation (dB)
30
30
30
30
IF1 to RF Isolation (dB)
40
40
40
40
IF2 to RF Isolation (dB)
40
40
40
40
LO to LNA IN Isolation (dB)
40
40
40
40
Total Current (mA)
29.5
25.0
27.5
23.0
NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off.
30
40
40
40
23.0
30
40
40
40
18.5
Parameter
GPS
Cascaded:
Gain (dB)
34.5
Noise Figure (dB)
1.6
Input IP3 (dBm)
-19
Total Current (mA)
21
NOTE: Assumes 1.5dB image filter insertion loss.
The TX Buffer Enable is off. /2 Select is off.
Rev A10 011017
8-39
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