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参数资料
| 型号： | HMC1020LP4E |
| 厂商： | Hittite Microwave Corporation |
| 文件页数： | 22/22页 |
| 文件大小： | 0K |
| 描述： | IC RMS PWR DETECTOR 65DB 24QFN |
| 标准包装： | 1 |
| 频率： | 0Hz ~ 3.9GHz |
| RF 型： | 通用 |
| 输入范围： | -65dBm ~ 7dBm |
| 精确度： | ±1dB |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 58mA |
| 包装： | 标准包装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 其它名称： | 1127-1000-6 |
HMC1020LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 3.9 GHz
System Calibration
Due to part-to-part variations in log-slope and log-intercept, a system-level calibration is recommended to satisfy
absolute accuracy requirements. When performing this calibration, two test points near the top end and bottom-end
of the desired detection dynamic range should be chosen. It is best to measure the calibration points in the regions
(of frequency and amplitude) where accuracy is most important. The log-slope and log-intercept parameters should
be derived and then stored in nonvolatile memory. These parameters relate the RMSOUT output voltage reading of
HMC1020LP4E to the actual RMS power level as shown below:
P IN = RMSOUT / [log-slope] + [log-intercept], dBm
The derivation procedure of the log-slope and log-intercept parameters is elaborated below:
For example if the following two calibration points were measured at 2.2 GHz:
With RMSOUT = 2.0338V at Pin = -10 dBm,
and RMSOUT = 0.5967V at Pin = -50 dBm
slope calibration constant = SCC
SCC = = (-50+10)/(0.5967-2.0338) =27.83 dB/V
intercept calibration constant = ICC
ICC = Pin – SCC *RMSOUT = -10 – 27.83 * 2.0338 = -66.60 dBm
Now performing a power measurement at -30 dBm:
RMSOUT measures 1.3089V
[Measured Pin] = [Measured RMSOUT]*SCC + ICC
[Measured Pin] = 1.3089*27.83 – 66.60 = -30.17 dBm
An error of only 0.17 dB
Factory system calibration measurements should be made using an input signal representative of the application. If
the power detector is intended to operate over a wide range of frequencies, then a central frequency should be chosen
for calibration.
Layout Considerations
? Mount RF input coupling capacitors close to the INP and INP pins.
? Solder the heat slug on the package underside to a grounded island which can draw heat away from the die with
low thermal impedance. The grounded island should be at RF ground potential.
? Connect power detector ground to the RF ground plane, and mount the supply decoupling capacitors close
to the supply pins.
Definitions
? Log-slope: slope of P IN –> RMSOUT transfer characteristic. In units of mV/dB
? Log-intercept: x-axis intercept of P IN –> RMSOUT transfer characteristic. In units of dBm.
? RMS Output Error: The difference between the measured P IN and actual P IN using a line of best fit.
[measured_P IN ] = [measured_ RMSOUT] / [best-fit-slope] + [best-fit-intercept], dBm
? Input Dynamic Range: the range of average input power for which there is a corresponding RMS output
voltage with “RMS Output Error ” falling within a specific error tolerance.
? Crest Factor: Peak power to average power ratio for time-varying signals.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
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| HMC1020LP4ETR | 制造商:Hittite Microwave Corp 功能描述:IC RMS PWR DETECTOR 65DB 24QFN 制造商:Hittite Microwave Corp 功能描述:HMC1020 Series DC - 3.9 GHz Single-Ended RMS Power Detector - QFN-24 |
| HMC1021 | 制造商:HONEYWELL 制造商全称:Honeywell Solid State Electronics Center 功能描述:1- and 2-Axis Magnetic Sensors |
| HMC1021D | 功能描述:IC SENSOR MAGN HI TEMP CER 8DIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| HMC1021LP4E | 制造商:Hittite Microwave Corp 功能描述:IC RMS DETECTOR 70DB 24-QFN |
| HMC1021LP4ETR | 制造商:Hittite Microwave Corp 功能描述:HMC1021 Series DC - 3.9 GHz Single-Ended RMS Power Detector - 4x4 mm QFN-24 |
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