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MAX2244 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part # MAX2244
Description  2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX2244 Datasheet(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX2244/MAX2245/MAX2246 single-supply, low-
voltage power amplifiers (PAs) are designed for 20dBm
Bluetooth™ Class 1 applications in the 2.4GHz to 2.5GHz
band. The MAX2244/MAX2245 deliver a peak output
power of 22dBm with greater than 20dB output-power
control range. The 22dBm output power compensates for
the filter loss between the PA and the antenna, allowing
20dBm to be delivered to the antenna. The MAX2246 pro-
vides a peak output power of 20dBm for a 30% reduction
in supply current.
The PAs integrate a power detector and closed-loop
power-control circuitry to provide nearly constant output
power over the full range of supply voltage, temperature,
and input power level. The voltage at the analog control
input precisely controls the output power level.
The MAX2244/MAX2245/MAX2246 feature a low-current
shutdown mode through a simple logic input. Internal cir-
cuitry automatically controls the ramp-up/down of the
output power level during turn-on and turn-off to meet
Bluetooth spurious emissions requirements.
The devices operate from a 3V to 3.6V single supply.
The MAX2244/MAX2246 have a power-control voltage
range of 0.5V to 2V, and the MAX2245 has a control
voltage range of 0.9V to 2.2V. The devices are pack-
aged in a miniature ultra chip-scale package (UCSP™),
significantly reducing the required board area.
Applications
Bluetooth Class 1 Radios
802.11 FHSS/HomeRF™ Radios
2.4GHz Cordless Phones
Features
o 2.4GHz to 2.5GHz Operation
o Accurate Closed-Loop Output Power Control
Over Full Temperature, Supply, and Input Power
Range
o Convenient Analog Power-Control Interface
o 22dBm Peak Output Power (MAX2244/MAX2245)
o 20dBm Peak Output with 30% Reduced Supply
Current (MAX2246)
o Internal Bandwidth-Limited Power Ramping
o 50Ω Integrated Input Match
o 0.5µA Shutdown Supply Current
o Ultra Chip-Scale Package (1.56mm 1.56mm)
2.5GHz, 22dBm/20dBm Power Amplifiers with
Analog Closed-Loop Power Control
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-2204; Rev 2; 8/03
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.
PART
TEMP
RANGE
BUMP
PACKAGE
TOP
MARK
MAX2244EBL-T
-40
°C to +85°C
9 UCSP*-9
AAP
MAX2245EBL-T
-40
°C to +85°C
9 UCSP*-9
AAQ
MAX2246EBL-T
-40
°C to +85°C
9 UCSP*-9
AAY
*UCSP reliability is integrally linked to the user's assembly
methods, circuit board material, and environment. See the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
Bluetooth is a trademark of Ericsson Corp.
UCSP is a trademark of Maxim Integrated Products, Inc.
MATCH
MATCH
BIAS
SHUTDOWN
ANALOG
INTERFACE
MATCH
POWER
DETECTOR
C1
C3
B2
A3
B3
A2
C2
RFIN/
SHDN
PC
GND
GND
RFOUT
VCC2
VCC1
A1
B1
MAX2244
CONTROL
AMP
MAX2245
MAX2246
GND
GND
Functional Diagram
Pin Configuration appears at end of data sheet.
HomeRF is a trademark of The HomeRF Working Group.


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