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參數(shù)資料
| 型號： | MAX2840EBC-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 衰減器 |
| 英文描述： | 5GHz Linear Power Amplifiers |
| 中文描述： | 5150 MHz - 5350 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| 封裝： | 2 X 1.50 MM, UCSP-12 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 750K |
| 代理商： | MAX2840EBC-T |
General Description
The MAX2840/MAX2841 low-cost linear power ampli-
fiers (PAs) operate in the 5GHz to 6GHz band. The PAs
are designed for high gain and high linearity, which
makes them ideal for use in IEEE 802.11a OFDM sys-
tems. The MAX2840 delivers +15dBm output power,
and the MAX2841 delivers +18dBm output power.
The devices integrate a power detector that provides
over 15dB dynamic range and ±1.0dB accuracy. With
the detector circuit built in, an automatic level control
(ALC) function can be easily implemented.
The PAs also feature an external bias control function.
The idle current can be adjusted through an external
DAC to improve efficiency at reduced output powers
while maintaining sufficient ACPR and EVM perfor-
mance. As a result, the highest possible efficiency is
maintained at all power levels. The MAX2840/MAX2841
operate over a single +2.7V to +3.6V power-supply
range. An on-chip shutdown feature reduces operating
current to less than 10μA, eliminating the need for an
external supply switch.
The MAX2840/MAX2841 are packaged in a 2mm
1.5mm chip-scale package (UCSP), which signifi-
cantly minimizes parasitic effects and reduces the
required board area.
Applications
Features
5GHz to 6GHz Operating Frequency Range
High Linear Output Power
+15dBm at 5.25GHz (MAX2840)
+18dBm at 5.25GHz (MAX2841)
22dB Power Gain
On-Chip Detector With 15dB Dynamic Range and
±1.0dB Detector Accuracy
Simple Input and Output Matching
+2.7V to +3.6V Single Supply
Shutdown Mode With Less than 10μA Current
2mm
1.5mm Chip-Scale Package
M
5GHz Linear Power Amplifiers
________________________________________________________________
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
RF_IN
GND
GND
GND
BIAS
RF_OUT
P_DET
V
CC
SHDN
C4
C3
C2
C1
B4
B2
A1
A2
A3
A4
BIAS
CIRCUIT
DET
GND
MAX2840
MAX2841
Pin Configuration
Ordering Information
19-2494; Rev 2; 8/03
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX2840
EBC-T
MAX2841
EBC-T
-40°C to +85°C
-40°C to +85°C
3
4 UCSP
3
4 UCSP
AAT
AAU
DETECTOR
V
CC
P_DET
GND
GND
GND
BIAS
RF_IN
SHDN
RF_OUT
GND
BIAS
CIRCUIT
MAX2840
MAX2841
Functional Diagram
IEEE 802.11a OFDM WLAN
HiperLAN2 WLAN
5GHz Cordless Phones
UCSP is a trademark of Maxim Integrated Products, Inc.
Typical Operating Circuit appears at end of data sheet.
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