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参数资料
| 型号： | HMC1020LP4E |
| 厂商： | Hittite Microwave Corporation |
| 文件页数： | 19/22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
R FBK
SINGLE-ENDED, DC - 3.9 GHz
LOG-Slope and Intercept
The HMC1020LP4E provides for an adjustment of output scale with the use of an integrated operational amplifier.
Logarithmic slope and intercept can be adjusted to “magnify ” a specific portion of the input sensing range, and to fully
utilize the dynamic range of the RMS output.
A log-slope of 35.2 mV/dB (@1900 MHz) is set by connecting RMS Output to VSET through a resistor network for ?=1
(see application schematic).
The log-slope is adjusted by applying the appropriate resistors on the RMS and VSET pins. Log-intercept is adjusted
by applying a DC voltage to the VSET pin.
11
Optimized slope = ? * log-slope
Optimized intercept = log_intercept – (R FBK /R SET ) * V BLINE
? = 1
2
R FBK // R SHUNT // R SET
When R FBK =0 to set RMSOUT=V SET , then ? =1/2
If R SET is not populated, then ? = ? * (R FBK / (R FBK // R SHUNT )) and intercept is at nominal value.
Example: The logarithmic slope can be simply increased by choosing appropriate R FBK and R SHUNT values while
not populating the R SET resistor on the evaluation board to keep the intercept at nominal value.
Setting R FBK =4.7KΩ and R SHUNT = 2.2KΩ results in an optimized slope of:
Optimized Slope = ? * log_slope = 1.57* 36.9mV / dB
Optimized Slope = 58 mV / dB
Slope Adjustment
4.5
4
3.5
3
2.5
2
1.5
1
0.5
High Slope
Nominal
Slope = 58 mV/dB
Rset = open
Rfbk = 4.7 Kohm
Rshunt = 2.2 Kohm
Slope = 37.3 mV/dB
Rset = open
Rfbk = 4.7 Kohm
Rshunt = 4.7 Kohm
0
-70
-60
-50
-40
-30
-20
-10
0
10
INPUT POWER (dBm)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
11 - 19
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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