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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 149K |
| 代理商： | MAX2235EUP |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Desc ription
The MAX2235 low-voltage, silicon RF power amplifier
(PA) is designed for use in the 900MHz frequency band.
It operates directly from a single +2.7V to +5.5V supply,
making it suitable for use with 3-cell NiCd or 1-cell Li-Ion
batteries. The device delivers +30dBm (1W) typical out-
put power from a +3.6V supply or +28dBm from a +2.7V
supply.
The MAX2235’s gain is adjustable over a 37dB range.
A power-control pin controls gain and bias to maintain
optimum efficiency, even at lower output power levels,
thus extending the operating life of the battery. At
+30dBm output power, efficiency is typically 47%. An
additional power-saving feature is a shutdown mode
that typically reduces supply current below 1μA.
A key feature of this PA is its autoramping capability.
During turn-on and turn-off periods, the RF envelope is
controlled to approximate a raised cosine on the rising
and falling edge, thereby minimizing transient noise
and spectral splatter. The ramp time is set by selecting
the value of an external capacitor.
The MAX2235 is intended for use in constant envelope
applications such as AMPS, two-way paging, or FSK-
based communications in the 900MHz ISM band. The
device is available in a thermally enhanced 20-pin
TSSOP package with a heat slug.
Applic ations
900MHz ISM-Band Applications
Two-Way Pagers
Analog Cellular Phones
Microcellular GSM (Power Class 5)
Wireless Data Networks
Features
o
800MHz to 1000MHz Operation
o
High Output Power at 836MHz
+32.5dBm at +5.0V
+30dBm at +3.6V
+29dBm at +3.0V
+28dBm at +2.7V
o
+2.7V to +5.5V Single-Supply Operation
o
Automatic Power-Up/Power-Down Ramp
o
Direct On/Off Keying (OOK) without Intersymbol
Interference or VCO Pulling
o
37dB Power-Control Range
o
47% Efficiency
o
<1μA Supply Current in Shutdown Mode
o
Small 20-Pin TSSOP Package with Heat Slug
M
+3.6V, 1W Autoramping Power
Amplifier for 900MHz Applic ations
________________________________________________________________ Maxim Integrated Products
1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
GC
SHDN
GND
GND
V
CC
V
CC
GND
RFIN
TOP VIEW
RFOUT
RFOUT
GND
GND
V
CC
GND
GND
V
CC
12
11
9
10
REF
RAMP
GND
V
CC
MAX2235
TSSOP-EP
NOTE:
THE GROUND OF THE OUTPUT STAGE IS CONNECTED TOTHE
UNDERSIDE METAL SLUG.
MAX2235
SHDN
GC
RFIN
RAMP
REF
BIAS
V
CC
4
V
CC
V
CC
3
V
CC
NOTE:
SOLDER UNDERSIDE OF METAL SLUG TOBOARD GND PLANE.
RFOUT
GND
GND
GND
15, 16
6, 7, 10
2
1
11
12
19
20
5
8, 9
13, 14, 17, 18, SLUG
VGA
Func tional Diagram
19-1463; Rev 0; 5/99
PART
MAX2235EUP
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
20 TSSOP-EP
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
Pin Configuration
Ordering Information
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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 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
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