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參數資料
| 型號： | LMV243 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Single-Channel, Quad-Band GSM Power Controller in micro SMD |
| 中文描述： | 單通道，四頻GSM電源控制器在微型SMD |
| 文件頁數： | 4/13頁 |
| 文件大小： | 885K |
| 代理商： | LMV243 |
Pin Descriptions
Pin
Name
Description
Power Supply
A3
A2, C3
C2
B3
V
DD
GND
TX_EN
RF IN
Supply Voltage
Power Ground. Operation requires both pins be grounded.
A Logic High to enable device.
RF Input connected to the Coupler output with optional attenuation to measure the
Power Amplifier (PA) / Antenna RF power levels.
Sets the RF output power level. The useful input voltage range is from 0.2V to 1.8V,
although voltages from 0V to V
DD
are allowed.
Connects an external RC network between the Comp pin and the Output pin for an
overall loop compensation and to control the closed loop frequency response.
Conventional loop stability techniques can be used in selecting this network, such as
Bode plots. A good starting value for the RC combination will be C = 68pF and R = 0
.
A rail-to-rail output capable of sourcing 25mA and sinking 25mA, with less than 200mV
total voltage drop over the specified temperature. The output is free from glitches when
enabled by TX_EN. When TX_EN is low, the output voltage is near GND.
Digital Inputs
Analog Inputs
C1
RAMP IN
Compensation
A1
Comp
Output
B1
Out
Note:
1. All inputs and outputs are referenced to GND (pin A2, C3).
2. For the digital inputs, a LOW is
<
0.8V and a HIGH is
>
1.8V.
3. RF power detection is performed internally in the LMV243 and only an RF power coupler with optional extra attenuation has to be used.
Ordering Information
Package
Part Number
LMV243BL
LMV243BLX
Package Marking
01
01
Transport Media
1k Units Tape and Reel
3k Units tape and Reel
NSC Drawing
8-Bump micro SMD
BLA08AAC
Block Diagram
20029036
FIGURE 1.
L
www.national.com
4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMV243BL | 功能描述:IC GSM POWER CONTROLLR 8USMD RoHS:否 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標準包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點:四頻帶 封裝/外殼:8-VFBGA 供應商設備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX |
| LMV243BLEVAL | 功能描述:電源管理IC開發工具 LMV243BL EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LMV243BLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Single-Channel, Quad-Band GSM Power Controller in micro SMD |
| LMV243BLX/NOPB | 功能描述:IC GSM POWER CTLR 8USMD RoHS:是 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標準包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點:四頻帶 封裝/外殼:8-VFBGA 供應商設備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX |
| LMV248 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Band GSM Power Controller |
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