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參數(shù)資料
| 型號(hào)： | RF2861PCBA-410 |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER |
| 中文描述： | CDMA的低噪聲放大器/混頻器900MHz的下變頻器 |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大?。?/td> | 173K |
| 代理商： | RF2861PCBA-410 |
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8-5
RF2861
Rev A2 040107
Gain Control Logic Table
Gain State
High Gain
Mid Gain
Low Gain
Low Gain (alternate)
NOTES: All IDC current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode).
TX Buffer On: Add 2mA to total current.
Cell Band Cascaded Performance High Mixer Gain Nominal IIP3 (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
LNA (High Gain)
LNA (Mid Gain)
Cascaded:
Gain (dB)
25.0
Noise Figure (dB)
2.1
Input IP3 (dBm)
-5.6
Total Current (mA)
25.0
NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off.
Cell Band Cascaded Performance Nominal Mixer Gain High IIP3 (Typical Values for V
CC
=2.75V)
Parameter
CELL CDMA
LNA (High Gain)
LNA (Mid Gain)
Cascaded:
Gain (dB)
22.5
Noise Figure (dB)
2.1
Input IP3 (dBm)
-3.7
Total Current (mA)
25.0
NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off.
CDMA450 Band Cascaded Performance (Typical Values for V
CC
=2.75V)
Parameter
LNA (High Gain)
Cascaded:
Gain (dB)
24.5
Noise Figure (dB)
2.2
Input IP3 (dBm)
-7.6
Total Current (mA)
29.5
NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off.
ENABLE
1
1
1
1
G1
0
1
1
0
G2
0
0
1
1
CELL CDMA
LNA (Low Gain)
16.5
6.3
+2.0
21.5
8.0
12.5
+11.4
18.0
LNA (Low Gain)
14.0
6.3
+3.5
21.5
5.5
12.5
+13.3
18.0
CDMA450
LNA (Mid Gain)
LNA (Low Gain)
12.0
8.5
+4.5
25
5.5
14.0
+11.3
21
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