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M
2.7V, Single-Supply, Cellular-Band
Linear Power Amplifiers
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13
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
B
RFIN
TX
POWER
L1
C1
V
CC
V
CC
V
CC
SHDN
C3
C4
C6
L6
L4
R1
R
TB1
C12
C11
R2
C13
L7
C7
RFOUT
C9
OPTIONAL
NOISE-REDUCTION
CIRCUIT
MAX2265
L3
R
TB2
OPTIONAL TB CIRCUIT
Figure 2. MAX2265 Typical Application Circuit
each device; suggested component values, suppliers,
and part numbers are listed in Table 1. These values
are optimized for best simultaneous efficiency and
return loss performance. Use high-quality components
in these matching circuits for greatest efficiency.
Layout and Power-Supply Bypassing
A properly designed PC board is essential to any
RF/microwave circuit. Be sure to use controlled imped-
ance lines on all high-frequency inputs and outputs.
Proper grounding of the GND pins is fundamental; if the
PC board uses a topside RF ground, connect all GND
pins (especially the TSSOP package exposed GND pad)
directly to it. On boards where the ground plane is not on
the component side, it’s best to connect all GND pins to
the ground plane with plated through-holes close to the
package.
To minimize coupling between different sections of the
system, the ideal power-supply layout is a star configu-
ration with a large decoupling capacitor at a central
V
CC
node. The V
CC
traces branch out from this central
node, each leading to a separate V
CC
node on the PC
board. A second bypass capacitor with low ESR at the
RF frequency of operation is located at the end of each
trace. This arrangement provides local decoupling at
the V
CC
pin.
Input and output impedance-matching networks are
very sensitive to layout-related parasitics. It is important
to keep all matching components as close to the IC as
possible to minimize the effects of stray inductance
and stray capacitance of PC board traces.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2264EUE | 2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
| MAX2265EUE | 2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
| MAX2266EUE | 2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
| MAX2267 | +2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
| MAX2267EUE | +2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2264E/D | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類(lèi)型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類(lèi)型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| MAX2264EUE | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類(lèi)型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類(lèi)型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| MAX2264EUE+T | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類(lèi)型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類(lèi)型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| MAX2264EUE-T | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類(lèi)型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類(lèi)型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| MAX2264EVKIT | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類(lèi)型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類(lèi)型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
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