參數(shù)資料
型號(hào)： MAX2685EEE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 無(wú)繩電話/電話
英文描述： Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer
中文描述： TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO16
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-16
文件頁(yè)數(shù)： 7/10頁(yè)
文件大小： 188K
代理商： MAX2685EEE
Detailed Description
The MAX2685 consists of five major components: a
low-noise amplifier (LNA), an LNA bypass switch, a
downconverter mixer, a local-oscillator (LO) buffer, and
a power-management block.
Low-Noise Amplifier (LNA)
The LNA is a wideband, single-ended cascode amplifi-
er that operates over a wide range of frequencies. The
input of the LNA (LNAIN) requires an appropriate
matching network and a DC-blocking capacitor. The
typical operating circuit shown in Figure 1 is optimized
for frequencies around 880MHz, requiring only a 0.1μF
capacitor in series with a 12nH inductor. See Table 1
for the LNA “S” parameters for matching to other fre-
quencies.
The output of the LNA (LNAOUT) is internally biased to
V
CC
. It is internally matched to 50
and incorporates
an internal DC-blocking capacitor.
LNA Bypass Switch
and Gain Control
When a large input signal is present, enable the LNA
bypass function to increase linearity and reduce supply
current. Set GAIN low to enable the LNA bypass func-
tion.
Receive Mixer
The downconverter mixer is a wideband, single-bal-
anced design with a low noise figure and high linearity.
The RF signal at the MIXIN port is mixed with the signal
at the LO port, and is downconverted to an IF frequen-
cy at the differential IF port.
RF Input
The MIXIN input requires a simple external matching
network and a series DC-blocking capacitor. See
Figure 1 for a matching network example, optimized for
880MHz operation. Table 2 lists mixer “S” parameters
for matching to other frequencies.
M
Low-Cost, 900MHz, Low-Noise Amplifier
and Downconverter Mixer
_______________________________________________________________________________________
7
Table 1. LNA Typical S-Parameters (V
CC
= +3V, T
A
= +25°C)
|
S11
|
MAG
FREQUENCY
(MHz)
800
840
880
920
960
1000
0.761
0.753
0.747
0.733
0.719
0.693
S11
PHASE
(degrees)
-64.5
-68.6
-73.2
-78.0
-82.8
-87.5
|
S21
|
MAG
S21
PHASE
(degrees)
177.9
167.2
156.6
146.6
137.7
130.3
4.98
5.06
5.07
4.91
4.68
4.40
|
S12
|
MAG
S12
PHASE
(degrees)
-163.7
-167.1
-171.3
-175.7
178.0
171.0
|
S22
|
MAG
S22
PHASE
(degrees)
-107.3
-107.0
-94.6
-62.9
-42.4
-38.8
0.376
0.264
0.172
0.149
0.200
0.263
0.018
0.022
0.026
0.030
0.035
0.039
-45.6
-48.1
-50.9
-53.3
-55.5
-57.5
73.0
65.5
58.1
51.6
46.1
41.2
0.188
0.195
0.199
0.200
0.200
0.200
71.9
64.2
56.7
50.3
44.7
40.0
800
840
880
920
960
1000
0.625
0.621
0.619
0.611
0.608
0.607
-91.3
-91.3
-89.9
-86.1
-80.9
-76.7
0.483
0.423
0.370
0.337
0.322
0.317
0.191
0.198
0.201
0.202
0.201
0.200
High-Gain Mode (GAIN = VCC)
Low-Gain Mode (GAIN = GND)
相關(guān)PDF資料
PDF描述
MAX271ENG Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filters
MAX270EWP Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filters
MAX271CNG Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filters
MAX271CWG 6MM LIGHT TOUCH SW W/GND H=9.5
MAX271EWG Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX2685EEE+ 功能描述:射頻放大器 900MHz Low-Noise Downconverter 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
MAX2685EEE+T 功能描述:射頻放大器 900MHz Low-Noise Downconverter 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
MAX2685EEE-T 功能描述:射頻放大器 900MHz Low-Noise Downconverter 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
MAX2685EVKIT 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
MAX2685EVKIT# 功能描述:射頻開(kāi)發(fā)工具 MAX2685 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
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

*
*
*