MAX4473RF/IF射頻/中頻RFID的RF功率控制器IC規(guī)格書PDF中文資料
| 廠商型號 |
MAX4473 |
| 參數(shù)屬性 | MAX4473 封裝/外殼為8-SOIC（0.154"，3.90mm 寬）；包裝為帶；類別為RF/IF射頻/中頻RFID的RF功率控制器IC；產(chǎn)品描述：IC AMP PA PWR GSM CTRL 8-SOIC |
| 功能描述 | Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications in 8-Pin 關(guān)MAX |
| 封裝外殼 | 8-SOIC（0.154"，3.90mm 寬） |
| 文件大小 |
140.29 Kbytes |
| 頁面數(shù)量 |
6 頁 |
| 生產(chǎn)廠商 | Maxim Integrated Products |
| 企業(yè)簡稱 |
Maxim【美信】 |
| 中文名稱 | 美信半導(dǎo)體官網(wǎng) |
| 原廠標識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2025-2-26 18:25:00 |
| 人工找貨 | MAX4473價格和庫存，歡迎聯(lián)系客服免費人工找貨 |
MAX4473規(guī)格書詳情
General Description
The MAX4473 PA power control IC is intended for closed-loop bias control of GSM power amplifiers. The device facilitates accurate control of the current delivered to the power amplifier (PA) through a control voltage. The error amplifier senses the voltage drop across an external current-sense resistor placed between the supply and the PA. The output of the error amplifier adjusts the PA gain until the current is proportional to the power control voltage applied to the MAX4473. This unique topology is useful in time-division-multiple access (TDMA) systems, such as GSM, where accurate transmit burst shaping and power control is required.
User-selectable current sensing and gain setting resistors maximize flexibility.
The MAX4473 operates from a single 2.7V to 6.5V supply and typically draws 1.2mA of supply current. The error amplifier has a common-mode range that extends from 1V to VCC. The power control input and error amplifier outputs swing rail-to-rail. A low-power shutdown mode reduces supply current to less than 1μA and activates an on-board active pull-down at the error amplifier output. Fast enable/disable times of 0.9μs reduce average power consumption without compromising dynamic performance. The MAX4473 is available in a space-saving 8-pin μMAX? package.
Features
? Optimized for GSM Timing Requirements
? 2.7V to 6.5V Single-Supply Operation
? 1.2mA Supply Current
? ≤ 1μA Supply Current in Shutdown Mode
? Guaranteed 1.5μs Enable/Disable Times
? Active Output Pull-Down in Shutdown Mode
? Rail-to-Rail Error Amplifier Output
? Rail-to-Rail Power Control Input
? Output Drive Capability—500Ω and 300pF Loads
? 1V to VCC Current Sense Input Common-Mode Voltage Range
? No Phase-Reversal for Common-Mode Voltage from 0 to VCC
? External Current Sensing and Gain Setting
Resistors Maximize Flexibility
? Available in a Space-Saving 8-Pin μMAX
Applications
GSM Cellular Phones
Cordless Phones
Precision Current Control
High-Frequency Servo Loops
產(chǎn)品屬性
- 產(chǎn)品編號：
MAX4473ESA-T
- 制造商：
Analog Devices Inc./Maxim Integrated
- 類別：
RF/IF，射頻/中頻和 RFID > RF 功率控制器 IC
- 包裝：
帶
- 射頻類型：
GSM
- 封裝/外殼：
8-SOIC（0.154"，3.90mm 寬）
- 供應(yīng)商器件封裝：
8-SOIC
- 描述：
IC AMP PA PWR GSM CTRL 8-SOIC
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MAX |
24+ |
SMD |
20000 |
一級代理原裝現(xiàn)貨假一罰十 |
詢價 | ||
MAXIM |
2020+ |
MSOP8 |
1200 |
百分百原裝正品 真實公司現(xiàn)貨庫存 本公司只做原裝 可 |
詢價 | ||
MAXIM |
23+ |
NA |
25060 |
只做進口原裝,終端工廠免費送樣 |
詢價 | ||
MAXIM |
24+ |
MSOP8 |
6980 |
原裝現(xiàn)貨,可開13%稅票 |
詢價 | ||
MAXIM |
23+ |
MSOP-8 |
9526 |
詢價 | |||
MAXIM/美信 |
24+ |
MSOP-8 |
45 |
大批量供應(yīng)優(yōu)勢庫存熱賣 |
詢價 | ||
MAXIM |
12+ |
MSOP8 |
2500 |
原裝現(xiàn)貨/特價 |
詢價 | ||
MAXIM/美信 |
21+ |
MSOP8 |
5000 |
百域芯優(yōu)勢 實單必成 可開13點增值稅發(fā)票 |
詢價 | ||
MAXIM |
21+ |
MSOP |
6500 |
全新原裝現(xiàn)貨 |
詢價 | ||
MAXIM(美信) |
2021+ |
uMAX-8 |
499 |
詢價 |
