收藏本站
RMS Power Detector
PA 1
COUPLER 1
50 Ω
50 Ω
COUPLER 2
10 Ω
10 Ω
PA 2
ENABLE
RMS
DETECT
BIAS
BUFFER
DETECTOR
OUTPUT
MAX2202
Figure 1. System Level Connection
Applications Information
Table 2. RF Input S11
Detector RF Input
The MAX2202 generally requires a terminating resistor
FREQ
(MHz)
S11
(dB)
S11
(PHASE)
FREQ
(MHz)
S11
(dB)
S11
(PHASE)
and series capacitor between the directional coupler’s
output and detector RF input. As shown in the Typical
Operating Characteristics, an S11 of less than -9dB is
possible when a terminating resistor of 50 Ω and series
capacitor of 220pF are used at the input. S11 of the
MAX2202 RFIN port without input matching is shown in
Table 2 and can be downloaded from Maxim’s website.
In cases where the detector is connected to two or
more directional couplers, as shown in Figure 1, the
50 Ω terminating resistor can be eliminated.
Detector Voltage Output
The output of the MAX2202 goes to an ADC for further
processing by the baseband system. Connect a series
10k Ω resistor and a shunt capacitor to the detector out-
put to reduce residual amplitude ripple. The shunt
capacitor should be 4.7nF for WCDMA and 15nF for
NCDMA.
Enable Logic Level
The device features an enable input (ENA) that allows
the device to be put into shutdown. For normal opera-
tion, drive ENA high. For device shutdown, drive ENA
low. The ENA pin is DC biased through a resistor. The
value of the resistor is recommended to be greater than
300 -1.63 -34.1 1560 -1.37
360 -1.69 -39.6 1620 -1.35
420 -1.75 -44.9 1680 -1.35
480 -1.77 -50.2 1740 -1.35
540 -1.77 -55.9 1800 -1.36
600 -1.75 -61.4 1860 -1.36
660 -1.74 -66.9 1920 -1.41
720 -1.72 -72.6 1980 -1.35
780 -1.70 -78.6 2040 -1.37
840 -1.62 -84.2 2100 -1.34
900 -1.59 -90.2 2160 -1.36
960 -1.53 -96.2 2220 -1.37
1020 -1.52 -102.2 2280 -1.37
1080 -1.45 -108.4 2340 -1.39
1140 -1.46 -114.5 2400 -1.37
1200 -1.40 -120.5 2460 -1.39
1260 -1.40 -126.5 2520 -1.38
1320 -1.39 -132.6 2580 -1.40
1380 -1.37 -138.9 2640 -1.39
1440 -1.35 -144.6 2700 -1.40
1500 -1.37 -150.6 — —
Note: V CC = 2.8V, S11 measured at RFIN bump.
-156.4
-162.4
-168.0
-173.7
-179.2
175.3
170.0
164.8
159.6
154.5
149.2
144.2
139.2
134.5
129.5
124.7
119.9
115.2
110.4
105.7
—
6
_______________________________________________________________________________________
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX2203EWT+T IC RMS PWR DETECTOR 6WLP
MAX2204EVKIT+ KIT EVAL FOR MAX2204
MAX2205EVKIT+ KIT EVAL FOR MAX2205
MAX2209AEBS+T IC RF PWR DETECTOR 4UCSP
MAX2209EVKIT+ EVAL KIT MAX2209
MAX2233EVKIT EVAL KIT MAX2232, MAX2233
MAX2235EVKIT EVAL KIT MAX2235
MAX2240EBL+T IC PWR AMP 2.4-2.5GHZ 9UCSP
相关代理商/技术参数
MAX2203 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:RMS Power Detector
MAX2203EWT+T 功能描述:射频检测器 RMS Power Detector RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 频率范围:650 MHz to 3 GHz 最大二极管电容: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SC-88 封装:Reel
MAX2203EWT+T10 功能描述:射频检测器 RMS Power Detector RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 频率范围:650 MHz to 3 GHz 最大二极管电容: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SC-88 封装:Reel
MAX2204 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2204_1 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2204EVKIT 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2204EVKIT+ 功能描述:射频开发工具 MAX2204 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
MAX2204EXK 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:RF Power Detector