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參數(shù)資料
| 型號： | MAX2247 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 2.4GHz SiGe Linear Power Amplifier |
| 中文描述： | 2.4GHz SiGe線性功率放大器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 770K |
| 代理商： | MAX2247 |
General Description
The MAX2247 low-voltage, three-stage linear power
amplifier (PA) is optimized for 802.11b/g wireless LAN
(WLAN) applications in the 2.4GHz ISM band. The
device is integrated with an adjustable bias control,
power detector, and shutdown mode. The MAX2247
features 29dB of power gain and delivers up to
+24dBm of linear output power at 24% efficiency from a
single +3.3V supply. It achieves less than -32dBc first-
side lobe suppression and less than -55dBc second-
side lobe suppression under 802.11b modulation. In
addition, the device can be matched for optimum effi-
ciency and performance at output power levels from
+10dBm to +24dBm. Its high +28dBm saturated output
power also allows the device to meet the requirements
of 802.11g OFDM modulation.
The MAX2247 features an external bias-control pin that
allows the supply current of the device to be dynamical-
ly throttled back at lower output power levels, thus
improving efficiency while maintaining sufficient side-
lobe suppression. Proprietary internal bias circuitry
maintains stable device performance over temperature
and voltage-supply variations. An additional power-sav-
ing feature is a logic-level shutdown pin that reduces
supply current to 0.5μA and eliminates the need for an
external supply switch. The integrated shutdown func-
tion also allows guaranteed device ramp-on and ramp-
off times.
The MAX2247 integrates a power detector with 20dB
dynamic range and ±0.8dB accuracy at the highest
output power level. The detector provides a buffered
DC voltage proportional to the output power of the
device, saving cost and space by eliminating a coupler
and op amp usually required to implement a power
detector function. The device is packaged in the tiny
3
4 chip-scale package (UCSP), measuring only
1.5mm
2mm, making it the ideal solution for radios built
in small form factors.
Applications
IEEE 802.11b DSSS WLAN
IEEE 802.11g OFDM WLAN
HomeRF
2.4GHz Cordless Phones
2.4GHz ISM Radios
Features
2.4GHz to 2.5GHz Operating Range
Up to +24dBm Linear Output Power (ACPR of
Less than -32dBc First-Side Lobe and Less than
-55dBc Second-Side Lobe)
24% PAE at +24dBm Linear Output Power, 3.3V
24% PAE at +21dBm Linear Output Power, 3.0V
29dB Power Gain
On-Chip Power Detector with Buffered Output
Internal 50
Input Matching
External Bias Control for Current Throttleback
Integrated Bias Circuitry
+2.7V to +4.2V Single-Supply Operation
0.5μA Shutdown Mode
Tiny Chip-Scale Package (1.5mm
2mm)
M
2.4GHz SiGe Linear Power Amplifier
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-2520; Rev 4; 8/03
Typical Operating Circuit appears at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX2247EBC-T
*
Requires special solder temperature profile in the Absolute
Maximum Ratings Sections.
-40°C to +85°C
3
x
4 UCSP*
AAW
TOP VIEW
BIAS
A1
GND3
B1
RF_
OUT
C1
V
CC
2
A2
C2
GND2
A3
PD_
OUT
B3
V
CC
B
C3
V
CC
1
A4
GND1
B4
RF_IN
C4
MAX2247
SHDN
Pin Configuration
UCSP is a trademark of Maxim Integrated Products, Inc.
HomeRF is a trademark of HomeRF Working Group.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2247_09 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2.4GHz SiGe Linear Power Amplifier |
| MAX2247_1 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Evaluation Kit |
| MAX2247EBC | 制造商:Rochester Electronics LLC 功能描述: |
| MAX2247EBC+T | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| MAX2247EBC+TW | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
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