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參數(shù)資料
| 型號： | RF2890 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | DUAL-BAND CDMA CELLULAR/GPS LOW NOISE AMPLIFIER/MIXER |
| 中文描述： | 800 MHz - 900 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 183K |
| 代理商： | RF2890 |
8-412
RF2890
Rev A4 040421
Evaluation Board Current Measurement
NOTES:
All IDC current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode).
TX Buffer On (=1): Add 2mA to total current.
DIV SEL On (=0): Add 2mA to total current.
“X” denotes setting does not impact current.
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).
Parameter
CELL CDMA
HIGH GAIN
MID GAIN
Cascaded:
Gain (dB)
23.5
16.0
Noise Figure (dB)
2.0
5.5
Input IP3 (dBm)
-3.7
+3.4
BAND
SEL
ENABLE
VG1
VG2
TX BUFF
ENAB
DIV
SEL
IDC
(mA)
CDMA Cellular
High Gain Mode,
TX Buffer Off, /2 Off
Mid Gain Mode,
TX Buffer Off, /2 Off
Low Gain Mode,
TX Buffer Off, /2 Off
Alternate Low Gain Mode,
TX Buffer Off, /2 Off
ISET2=7.5k
23.5
0
1
0
0
0
1
0
1
1
0
0
1
20.5
0
1
1
1
0
1
16.5
0
1
0
1
0
1
16.5
GPS
GPS Mode
ISET2=7.5k
15.5
1
1
X
X
X
1
LOW GAIN
6.0
13.0
+13.5
Total Current (mA)
NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off (TX
BUFF ENAB=0). DIV SEL function is off (=1).
23.5
20.5
16.5
Parameter
GPS
Cascaded:
Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
Total Current (mA)
NOTE: Assumes 1.5dB image filter insertion loss.
32.5
1.8
-18.0
15.5
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