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參數(shù)資料
| 型號(hào)： | RF2460 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | PCS CDMA LOW NOISE AMPLIFIER/MIXER 1500MHZ TO 2200MHZ DOWNCONVERTER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC20 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-20 |
| 文件頁(yè)數(shù)： | 10/20頁(yè) |
| 文件大小： | 592K |
| 代理商： | RF2460 |
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Preliminary
8-42
RF2460
Rev A7 010912
8
F
Current Measurement
To measure only the current of the different circuitry in the evaluation board, use the following procedure.
First, replace the bias choke inductor at the output of the mixer (L3 for US-PCS) with a 1
resistor. The voltage across
the resistor will represent the mixer current. Terminate all SMA connections at 50
.
Second, follow the table below.
Therefore
,
CONDITION
V
CC2
1
1
1
0
0
Current (mA)
25.82
18.77
14.28
10.05
7.72
V
CC1
1
1
1
1
1
EN
1
1
1
1
1
LNA Gain
1
0
0
0
0
Mix Gain
1
1
0
0
0
I
CC
Total
LNA Off
Mixer Preamp Off
V
CC2
Off
Mixer Current
LNA (Bypass) = (Computer Simulation) =
LNA (High Gain) =
Mixer (Preamp) =
Mixer =
Bias =
LO Circuitry (V
CC2
) =
0mA
25.82-18.77
18.77-14.28
(Measured)
10.05-7.7
14.28-10.05
=
=
=
=
=
7.05mA
4.49mA
7.70mA
2.35mA
4.23mA
25.82mA
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| RF2460_06 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:PCS CDMA LOW NOISE AMPLIFIER/MIXER 1500MHz TO 2200MHz DOWNCONVERTER |
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