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參數(shù)資料
| 型號： | LMV232TLX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 衰減器 |
| 英文描述： | Dual-Channel Integrated Mean Square Power Detector for CDMA & WCDMA |
| 中文描述： | 50 MHz - 2000 MHz RF/MICROWAVE LINEAR DETECTOR |
| 封裝： | 1.50 X 1.50 MM, 0.60 MM HEIGHT, LEAD FREE, MO-211DD, MICRO SMD, 8 PIN |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 779K |
| 代理商： | LMV232TLX |
LMV232
Dual-Channel Integrated Mean Square Power Detector
for CDMA & WCDMA
General Description
The LMV232 dual RF detector is designed for RF transmit
power measurement in mobile phones. This dual mean
square IC is especially suited for accurate power measure-
ment of RF signals exhibiting high peak-to-average ratios
used in 3G and UMTS/CDMA applications. The LMV232
saves calibration steps and system certification and is highly
accurate. The circuit operates with a single supply from 2.5
to 3.3V.
The LMV232 contains a mean square detector with two
sequentially selectable RF inputs. The RF input power range
of the device has been optimized for use with a 20 dB
directional coupler, without the need for additional external
components. A single external RC combination between FB
and OUT provides an externally configurable gain and LF
filter bandwidth of the device.
The device has two digital interfaces. A shutdown function is
available to set the device in a low-power shutdown mode. In
case SD = HIGH, the device is in shutdown, if SD = LOW the
device is active. The Band-Select function controls the se-
lection of the active RF input channel. In case BS = HIGH,
RF
IN
1 is active. In case BS = LOW, RF
IN
2 is active.
The dual mean square detector is offered in an 8-bump
micro SMD 1.5 x 1.5 x 0.6 mm package. This micro SMD
package has the smallest footprint and height.
Features
n
>
20 dB square-law detection range
n
2 sequentially selectable RF inputs
n
Low power consumption shutdown mode
n
Externally configurable gain and LF filter bandwidth.
n
Internal 50
RF termination impedance
n
Optimized for use with 20 dB directional coupler
n
Lead free 8-bump micro SMD package 1.5 x 1.5 x 0.6
mm
Applications
n
3G mobile communications
n
UMTS
n
WCDMA
n
CDMA2000
n
TD-SCDMA
n
RF control
n
Wireless LAN
n
PC Card and GPS modules
Typical Application
20127801
February 2005
L
2005 National Semiconductor Corporation
DS201278
www.national.com
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMV232TLX/NOPB | 功能描述:射頻檢測器 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 |
| LMV241C WAF | 制造商:Texas Instruments 功能描述: |
| LMV242 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller |
| LMV242LD | 功能描述:射頻檢測器 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 |
| LMV242LD/NOPB | 功能描述:射頻檢測器 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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