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| 型号： | LMV242MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 通信及网络 |
| 英文描述： | MICA RoHS Compliant: No |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, UUC10 |
| 封装： | DIE-10 |
| 文件页数： | 1/16页 |
| 文件大小： | 560K |
| 代理商： | LMV242MDA |
LMV242
Dual Output, Quad-Band GSM/GPRS Power Amplifier
Controller
General Description
The LMV242 is a power amplifier (PA) controller intended for
use within an RF transmit power control loop in GSM/GPRS
mobile phones. The LMV242 supports all single-supply PA’s
including InGaP, HBT and bipolar power amplifiers. The
device operates with a single supply from 2.6V to 5.5V.
Included in the PA controller are an RF detector, a ramp filter
and two selectable output drivers that function as error am-
plifiers for two different bands. The LMV242 input interface
consists two analog and two digital inputs. The analog inputs
are the RF input, Ramp voltage input. The digital inputs
perform the function of “Band Select” and “Shutdown/
Transmit Enable” respectively. The “Band Select” function
enables either of two outputs, namely OUT1 when BS =
High, or output OUT2 when BS = Low. The output that is not
enabled is pulled low to the minimum output voltage. The
LMV242 is active in the case TX_EN = High. When TX_EN
= Low the device is in a low power consumption shutdown
mode. During shutdown both outputs will be pulled low to the
minimum output voltage. Individual PA characteristics are
accommodated by a user selectable external RC combina-
tion.
The LMV242 is offered in fully tested die form as well as in a
10-lead LLP package and is therefore especially suitable for
small footprint PA module solutions.
Features
n
Support of InGaP HBT, bipolar technology
n
Quad-band operation
n
Shutdown mode for power save in R
X
slot
n
Integrated ramp filter
n
50 dB RF detector
n
GPRS compliant
n
External loop compensation option
n
Accurate temperature compensation
n
LLP package 3x3 mm and fully tested die sales
Applications
n
GSM/GPRS/TDMA/TD_SCDMA mobile phone
n
Pulse RF control
n
Wireless LAN
n
GSM/GPRS power amplifier module
n
Transmit module
Typical Application
20079501
VIP
is a registered trademark of National Semiconductor Corporation.
July 2004
L
2004 National Semiconductor Corporation
DS200795
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LMV242LD | Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller |
| LMV242MWA | Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller |
| LMV242LDX | Silver Mica Capacitor; Capacitance:510pF; Capacitance Tolerance: 5%; Series:CDV30; Voltage Rating:1500VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:11.1mm; Leaded Process Compatible:No RoHS Compliant: No |
| LMV242 | Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller |
| LMV301 | Low Input Bias Current, 1.8V Op Amp w/ Rail-to-Rail Output |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMV242MEA DIE | 制造商:Texas Instruments 功能描述: |
| LMV242MWA | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Dual Output, Quad-Band GSM/GPRS Power Amplifier Controller |
| LMV243 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Single-Channel, Quad-Band GSM Power Controller in micro SMD |
| LMV243BL | 功能描述:IC GSM POWER CONTROLLR 8USMD RoHS:否 类别:RF/IF 和 RFID >> RF 电源控制器 IC 系列:- 标准包装:3,000 系列:- RF 型:GSM 频率:450MHz ~ 2GHz 特点:四频带 封装/外壳:8-VFBGA 供应商设备封装:8-MicroSMD（1.51x1.51） 包装:带卷 (TR) 其它名称:LMV243BLX |
| LMV243BLEVAL | 功能描述:电源管理IC开发工具 LMV243BL EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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