參數(shù)資料
型號(hào)： MAX2411AEEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 衰減器
英文描述： Low-Cost RF Up/Downconverter with LNA and PA Driver
中文描述： 1900 MHz RF/MICROWAVE UP/DOWN CONVERTER
文件頁(yè)數(shù)： 9/14頁(yè)
文件大?。?/td> 134K
代理商： MAX2411AEEI
_______________Detailed Desc ription
The MAX2411A consists of five major components: a
transmit mixer followed by a variable-gain power-
amplifier (PA) driver as well as a low-noise amplifier
(LNA), receive mixer, and power-management section.
The following sections describe each of the blocks in
the MAX2411A Functional Diagram
Low-Noise Amplifier (LNA)
The LNA is a wideband, single-ended cascode amplifi-
er that can be used over a wide range of frequencies.
Refer to the LNA Gain vs. Frequency graph in the
Typical Operating Characteristics. Its port impedances
are optimized for operation around 1.9GHz, requiring
only a 1pF shunt capacitor at the LNA input for a VSWR
of better than 2:1 and a noise figure of 2.4dB. As with
every LNA, the input match can be traded off for better
noise figure.
PA Driver
The PA driver has typically 15dB of gain, which is
adjustable over a 35dB range via the GC pin. At full gain,
the PA driver has a noise figure of 3.5dB at 1.9GHz.
For input and output matching information, refer to the
Typical Operating Characteristics for plots of PA Driver
Input and Output Impedance vs. Frequency.
Bidirec tional IF Port
The MAX2411A has a unique bidirectional differential IF
port, which can eliminate the need for separate transmit
and receive IF filters, reducing cost and component count.
Consult the Typical Operating Circuit for more information.
For single-ended operation, connect the unused
IF
port to
V
CC
and bypass with a 1000pF capacitor to GND.
In receive mode, the IF and
IF
pins are open-collector
outputs that need external inductive pull-ups to V
CC
for
proper operation. These inductors are typically used as
part of an IF matching network.
In transmit mode, IF and
IF
are high-impedance inputs
that are internally AC coupled to the transmit mixer.
This internal AC coupling prevents the DC bias voltage
required for the receive mixer outputs from reaching
the transmit mixer inputs.
Rec eive Mixer
The receive mixer is a wideband, double-balanced
design with excellent noise figure and linearity. Inputs to
the mixer are the RF signal at the RXMXIN pin and the
LO inputs at LO and
LO
. The downconverted output sig-
nal appears at the IF port. For more information, see the
Bidirectional IF Port section. The conversion gain of the
receive mixer is typically 9.4dB with a 9.2dB noise figure.
RF Input
The RXMXIN input is typically connected to the LNA out-
put through an off-chip filter. This input is externally
matched to 50
. See the Typical Operating Circuit for an
example matching network and the Receive Mixer Input
Impedance vs. Frequency graph in the Typical Operating
Characteristics.
Local-Oscillator Inputs
The LO and
LO
pins are internally terminated with 50
on-chip resistors. AC couple the local-oscillator signal
to these pins. If a single-ended LO source is used, con-
nect
LO
directly to ground.
T ransmit Mixer
The transmit mixer takes an IF signal at the IF port and
upconverts it to an RF frequency at the TXMXOUT pin.
For more information on the IF port, see the Bidirectional
IF Port section. The conversion gain is typically 8.5dB,
and the output 1dB compression point is typically
11.1dBm at 1.9GHz.
M
Low-Cost RF Up/Downc onverter
with LNA and PA Driver
_______________________________________________________________________________________
9
_________________________________________________Pin Desc ription (c ontinued)
PIN
FUNCTION
NAME
RF Input to Receive Mixer (downconverter). This input typically requires a matching network for
connecting to an external filter. AC couple to this pin. See the Typical Operating Characteristics
for a plot of RXMXIN Impedance vs. Frequency.
RXMXIN
24
Receive Mixer Input Ground. Connect GND to the PC board ground plane with minimal inductance.
GND
25
LNA Output Ground. Connect GND to the PC board ground plane with minimal inductance.
GND
26
LNA Output. AC couple to this pin. This output typically provides a VSWR of better than 2:1 at fre-
quencies from 1.7GHz to 3GHz with no external matching components. At other frequencies, a
matching network may be required to match LNAOUT to an external filter. Consult the Typical
Operating Characteristics for a plot of LNA Output Impedance vs. Frequency.
LNAOUT
27
相關(guān)PDF資料
PDF描述
MAX2411 Low-Cost RF Up/Downconverter with LNA and PA Driver
MAX2411A Hex Buffers/Drivers With Open-Collector High-Voltage Outputs 14-SOIC 0 to 70
MAX2424 900MHz Image-Reject Receivers with Transmit Mixer
MAX2424EAI Dual monostable multivibrators with Schmitt-trigger inputs 16-PDIP 0 to 70
MAX2426 Dual monostable multivibrators with Schmitt-trigger inputs 16-PDIP 0 to 70
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX2411AEEI+ 功能描述:上下轉(zhuǎn)換器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128
MAX2411AEEI+T 功能描述:上下轉(zhuǎn)換器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128
MAX2411AEEI-T 功能描述:上下轉(zhuǎn)換器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128
MAX2411AEVKIT 功能描述:射頻開(kāi)發(fā)工具 MAX2411A Eval Kit RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類(lèi)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
MAX24188ETK+ 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 IEEE1588 Clock RoHS:否 制造商:Silicon Labs 類(lèi)型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*