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參數(shù)資料
| 型號(hào)： | MAX2015 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 0.1GHz to 2.5GHz, 75dB Logarithmic Detector/Controller |
| 中文描述： | 0.1GHz至3GHz、75dB對(duì)數(shù)檢測(cè)器/控制器 |
| 文件頁(yè)數(shù)： | 9/10頁(yè) |
| 文件大?。?/td> | 628K |
| 代理商： | MAX2015 |
Controller Mode
The MAX2015 can also be used as a detector/controller
within an AGC loop. Figure 3 depicts one scenario
where the MAX2015 is employed as the controller for a
variable-gain PA. As shown in the figure, the MAX2015
monitors the output of the PA through a directional cou-
pler. An internal integrator (Figure 2) compares the
detected signal with a reference voltage determined by
V
SET
. The integrator, acting like a comparator, increas-
es or decreases the voltage at OUT, according to how
closely the detected signal level matches the V
SET
ref-
erence. The MAX2015 adjusts the power of the PA to a
level determined by the voltage applied to SET. With R1 =
0
, the controller mode slope is approximately
19mV/dB (RF = 100MHz).
Layout Considerations
As with any RF circuit, the layout of the MAX2015 circuit
affects the device
’
s performance. Use an abundant num-
ber of ground vias to minimize RF coupling. Place the
input capacitors (C1, C2) and the bypass capacitors
(C3
–
C6) as close to the IC as possible. Connect the
bypass capacitors to the ground plane with multiple vias.
M
0.1GHz to 2.5GHz, 75dB Logarithmic
Detector/Controller
_______________________________________________________________________________________
9
MAX2015
C6
R4
C1
C5
1
2
OUT
SET
V
S
C4
C3
4
V
CC
V
CC
INLO
V
OUT
V
SET
20k
20k
INHI
7
8
RFIN
C2
3
DETECTORS
GND
6
PWDN
5
Figure 2. Controller-Mode Typical Application Circuit
MAX2015
OUT
SET
20k
20k
IN
COUPLER
LOGARITHMIC
DETECTOR
TRANSMITTER
POWER AMPLIFIER
GAIN-CONTROL INPUT
SET-POINT
DAC
Figure 3. System Diagram for Automatic Gain-Control Loop
1
2
3
4
8
7
6
5
OUT
SET
GND
PWDN
V
CC
INLO
INHI
V
CC
MAX2015
μ
MAX
TOP VIEW
Pin Configuration
Chip Information
TRANSISTOR COUNT: 3157
PROCESS: BiCMOS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2015EUA | 0.1GHz to 3GHz, 75dB Logarithmic Detector/Controller |
| MAX2016EVKIT | Evaluation Kit |
| MAX2021_1 | Evaluation Kit |
| MAX2021EVKIT | Evaluation Kit |
| MAX2022EVKIT | Evaluation Kit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX20-15.0C | 制造商:MDE 制造商全稱:MDE Semiconductor, Inc. 功能描述:HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR (TVS) DIODE |
| MAX20-15.0CA | 制造商:MDE 制造商全稱:MDE Semiconductor, Inc. 功能描述:HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR (TVS) DIODE |
| MAX2015_07 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:0.1GHz to 3GHz, 75dB Logarithmic Detector/Controller |
| MAX2015ETA+ | 制造商:Maxim Integrated Products 功能描述:0.1GHZ TO 3GHZ, 75DB LOGARITHMIC DETECTOR/CONTROLLER - Rail/Tube |
| MAX2015ETA+T | 功能描述:射頻檢測(cè)器 0.1-2.5GHz 75dB Log Detector/Controller RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
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