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参数资料
| 型号： | MAX9933EUA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC RF-DETECT CTRLR/RF DET 8-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 2MHz ~ 1.6GHz |
| RF 型： | 手机，TDMA，CDMA，GPRS，GSM |
| 输入范围： | -45dBm ~ 0dBm |
| 精确度： | ±1dB |
| 电源电压： | 2.7 V ~ 5.25 V |
| 电流 - 电源： | 12mA |
| 包装： | 带卷 (TR) |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
2MHz to 1.6GHz 45dB RF-Detecting
Controllers and RF Detector
Waveform Considerations
The MAX9930–MAX9933 family of logarithmic amplifiers
respond to voltage, not power, even though input levels
are specified in dBm. It is important to realize that input
Block Diagram
signals with identical RMS power but unique waveforms
result in different log amp outputs. Differing signal wave-
forms result in either an upward or downward shift in the
SHDN
V CC
OUTPUT-
ENABLE
DELAY
logarithmic intercept. However, the logarithmic slope
remains the same; it is possible to compensate for known
waveform shapes by baseband process.
It must also be noted that the output waveform is generat-
ed by first rectifying and then averaging the input signal.
RFIN
SET
LOG
DETECTOR
V-I*
g m
BLOCK
x1
BUFFER
OUT
This method should not be confused with RMS or peak-
detection methods.
MAX9930
MAX9931
C CLPF
MAX9932
Layout Considerations
As with any RF circuit, the layout of the MAX9930 –
MAX9933 circuits affects performance. Use a short 50 ?
GND
line at the input with multiple ground vias along the
SHDN
OUTPUT-
length of the line. The input capacitor and resistor
should both be placed as close as possible to the IC.
V CC should be bypassed as close as possible to the IC
with multiple vias connecting the capacitor to the
ground plane. It is recommended that good RF compo-
V CC
RFIN
LOG
DETECTOR
g m
BLOCK
ENABLE
DELAY
x1
OUT
nents be chosen for the desired operating frequency
range. Electrically isolate RF input from other pins
BUFFER
(especially SET) to maximize performance at high
frequencies (especially at the high power levels of
the MAX9932).
MAX9933
V-I*
C CLPF
GND
Chip Information
PROCESS: High-Frequency Bipolar
*INVERTING VOLTAGE TO CURRENT CONVERTER.
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9934EVKIT+ | 功能描述:放大器 IC 开发工具 MAX9934 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9934FALT+T | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934FART+T | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934FART+TG0Y | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
| MAX9934FAUA+ | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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