參數(shù)資料
型號(hào)： RF2498PCBA
廠商： RF Micro Devices, Inc.
英文描述： TRI-BAND/QUAD-MODE CDMA/GPS LOW NOISE AMPLIFIER/MIXER
中文描述： TRI-BAND/QUAD-MODE碼分多址/ GPS的低噪聲放大器/混頻器
文件頁數(shù)： 7/20頁
文件大小： 723K
代理商： RF2498PCBA
8-307
RF2498
Rev A3 030711
Cascaded Performance (Typical Values for V
CC
=2.75V)
NOTE:
All total current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode).
CELL CDMA
LNA ON
LNA OFF
LNA at Max IIP3, IPSET=1
LNA ON
LNA OFF
Parameter
Mixer Preamp On
Mixer Preamp Off
Cascaded:
Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
25.0
2.1
-8.5
7.5
13.0
+8.9
15.0
4.5
+0.6
-2.5
19.5
+17.6
LO to IF Isolation (dB)
IF1 to RF Isolation (dB)
IF2 to RF Isolation (dB)
LO to LNA IN Isolation (dB)
Total Current (mA)
NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off.
Numbers represent high linearity LNA bias setting IPSET=1.
*For Paging mode set IPSET=0. Total current reduced 2mA.
30
40
40
45
30
40
40
45
20.5
30
40
40
45
30
40
40
45
15.5
*27.0
*22.0
FM/JCDMA
Parameter
LNA ON
LNA OFF
LNA ON
LNA OFF
Mixer Preamp On
Mixer Preamp Off
Cascaded:
Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
24.5
2.1
-8.1
7.5
13.0
+8.9
14.5
4.8
+1.6
-2.5
19.5
+18.4
LO to IF Isolation (dB)
IF1 to RF Isolation (dB)
IF2 to RF Isolation (dB)
LO to LNA IN Isolation (dB)
Total Current (mA)
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
45
25.0
30
40
40
45
20.5
30
40
40
45
20.0
30
40
40
45
15.5
PCS CDMA
LNA ON
LNA OFF
LNA at Max IIP3, IPSET=1
Mixer Preamp ON
LNA ON
LNA OFF
Parameter
Mixer Preamp OFF
Cascaded:
Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
26.5
2.2
-7.5
7
14
17.0
5.0
+0.2
-2.5
22
+19.0
+11.8
LO to IF Isolation (dB)
IF1 to RF Isolation (dB)
IF2 to RF Isolation (dB)
LO to LNA IN Isolation (dB)
Total Current (mA)
NOTE: Assumes 3dB image filter insertion loss. The TX Buffer Enable is off. Div/2 function is off.
Numbers represent high linearity LNA bias setting IPSET=1.
*For Paging mode set IPSET=0. Total current reduced 2mA.
40
40
40
40
40
40
40
40
21.0
40
40
40
40
40
40
40
40
16.0
*27.5
*22.5
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參數(shù)描述
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