- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383346 > MAX2235EUP (MAXIM INTEGRATED PRODUCTS INC) +3.6V, 1W Autoramping Power Amplifier for 900MHz Applications PDF資料下載
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)： | 6/8頁 |
| 文件大小： | 149K |
| 代理商： | MAX2235EUP |
M
+3.6V, 1W Autoramping Power
Amplifier for 900MHz Applic ations
6
_______________________________________________________________________________________
Detailed Desc ription
The MAX2235 power amplifier (PA) operates over a
wide frequency range of 800MHz to 1000MHz. The sig-
nal path consists of three stages: the input stage, the
driver stage, and the power stage. There are matching
circuits between the first and second stages, and
between the second and third stages. The bias circuits
process external commands to control the device’s
power-up/down and the gain of the PA.
Input S tage
The first stage is a variable-gain amplifier with 37dB
gain-control range. The input transistor acts as a
transconductor with constant bias current. Gain control
is achieved by steering the signal current from the input
transistor to the first output matching network (to drive
the second stage) or to a separate supply pin. This
stage operates in class A and remains on in standby
mode to ensure that the VSWR at the input does not
vary more than 1.5:1 compared with normal operation.
The input stage typically requires an external inductor
to achieve an optimum input VSWR.
S ec ond S tage (Driver)
The driver produces a signal large enough to drive the
power stage into saturation. The driver stage operates
in Class C and is off during standby.
S ec ond- and T hird-S tage Matc hing
The interstage matching networks provide optimal load-
ing and power transfer. The circuits are on-chip to save
board space. The bandwidths of the matching net-
works allow the PA to operate over a wide frequency
range.
Typic al Operating Circ uit
20
19
18
17
8
7
6
5
4
3
2
1
16
15
14
13
9
10
11
12
GND
V
CC
V
CC
V
CC
GND
GND
V
CC
V
CC
GND
RFIN
SHDN
GND
GND
RFOUT
RFOUT
GND
GND
REF
RAMP
GC
0.068
μ
F
470pF
470pF
1500pF
47pF
1000pF
1000pF
11pF
MAX2235
68pF
V
CC
V
CC
V
CC
V
CC
V
CC
J2
JU2
JU1
SMA
SMA
J3
J4
8.2nH
*
100pF
100pF
1000pF
1000pF
22pF
100pF
100pF
0.01
μ
F
1
μ
F
J1
1
2
3
*
VALUE OF OUTPUT INDUCTOR DEPENDS ON APPLICATION.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2244EBL-T | 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control |
| MAX2246 | 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control |
| MAX2246EBL-T | 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control |
| MAX2245EBL-T | 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control |
| MAX2244 | 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control |
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。