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參數(shù)資料
| 型號(hào)： | MAX2235EUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 衰減器 |
| 英文描述： | +3.6V, 1W Autoramping Power Amplifier for 900MHz Applications |
| 中文描述： | 800 MHz - 1000 MHz RF/MICROWAVE WIDE BAND MEDIUM POWER AMPLIFIER |
| 封裝： | TSSOP-20 |
| 文件頁(yè)數(shù)： | 7/8頁(yè) |
| 文件大?。?/td> | 149K |
| 代理商： | MAX2235EUP |
T hird S tage (Power S tage)
This last stage delivers 30dBm to a 50
load. It oper-
ates in Class E to achieve a high power-added efficien-
cy (PAE). Proper output matching is required for
optimal output power. The output of the power stage
requires a low-series-resistance pull-up inductor with a
minimum current rating of 1.5A. See the Typical
Operating Circuit for an example of an output matching
circuit.
Biasing and Power Control
SHDN
, GC, RAMP, and REF are bias and power-control
pins. Drive
SHDN
below 0.5V to turn off the entire chip,
and drive
SHDN
above 2.0V to turn on the device.
When
SHDN
is high, a V
GC
from 0.6V to 2.3V continu-
ously controls the gain in the first stage (VGA) and the
output power.
Drive GC below 0.4V to put the device in standby mode
with only the first stage on. If GC is unconnected and
V
SHDN
> 2.0V, the device is set to maximum gain.
Table 1 summarizes these operating modes.
Power Ramping Control
A capacitor connected between RAMP and REF con-
trols the output power rise/fall time to reduce transient
noise when
SHDN
turns the device on and off. Because
the ramp is approximately a raised cosine, this device
can be used in direct On/Off Keying (OOK) applications
with minimum intersymbol interference. The value of the
ramping capacitor is determined from the Rise/Fall Time
vs. Ramping Capacitance curves in the Typical
Operating Characteristics.
Table 1. Operating Modes
Board Assembly Prec aution
Solder the underside metal slug evenly to the board
ground plane for optimal performance. Fill all vias in the
area under the slug. For maximum power gain and sat-
urated output power, ensure that the entire slug makes
contact with the board ground.
M
+3.6V, 1W Autoramping Power
Amplifier for 900MHz Applic ations
_______________________________________________________________________________________
7
GC
SHDN
>2.0V
>2.0V
<0.5V
>0.6V
<0.4V
Don’t care
MODE
On
Standby
Shutdown
Chip Information
TRANSISTOR COUNT: 668
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2235EUP+ | 功能描述:射頻放大器 Autoramping Power Amp for 900MHz Ap RoHS:否 制造商:Skyworks Solutions, Inc. 類型: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 |
| MAX2235EUP+T | 功能描述:射頻放大器 Autoramping Power Amp for 900MHz Ap RoHS:否 制造商:Skyworks Solutions, Inc. 類型: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 |
| MAX2235EUP-T | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型: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 |
| MAX2235EVKIT | 功能描述:放大器 IC 開發(fā)工具 MAX2235 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V |
| MAX2235EVKIT+ | 功能描述:射頻開發(fā)工具 MAX2235 Eval Kit RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
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