MAX2247EBC Fast Delivery |IC PHOENIX CO.,LIMITED

MAX2247EBC ,2.4GHz SiGe Linear Power AmplifierApplicationsIEEE 802.11b DSSS WLANB1 B3 B4IEEE 802.11g OFDM WLANPD_GND3 GND1OUTMAX2247HomeRF™2.4GHz ..
MAX2247EBC-T ,2.4GHz SiGe Linear Power AmplifierApplicationsIEEE 802.11b DSSS WLANB1 B3 B4IEEE 802.11g OFDM WLANPD_GND3 GND1MAX2247 OUTHomeRF™2.4GH ..
MAX225CWI ,+5V-Powered, Multichannel RS-232 Drivers/ReceiversMAX220–MAX24919-4323; Rev 9; 4/00+5V-Powered, Multichannel RS-232Drivers/Receivers
MAX225CWI+G36 ,+5V-Powered, Multichannel RS-232 Drivers/ReceiversElectrical Characteristics—MAX220/222/232A/233A/242/243(V = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0 ..
MAX225CWI-T ,+5V-Powered, Multichannel RS-232 Drivers/ReceiversFeaturesThe MAX220–MAX249 family of line drivers/receivers isSaves Board Spaceintended for all EIA/ ..
MAX225EWI ,+5V-Powered, Multichannel RS-232 Drivers/ReceiversELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243(V = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0 ..
MAX532BEPE+ ,Dual, Serial Input, Voltage-Output, Multiplying, 12-Bit DACApplications______________Ordering InformationAutomatic Test EquipmentArbitrary Waveform Generators ..
MAX532BEWE ,Dual, Serial-Input, Voltage-Output, 12-Bit MDACELECTRICAL CHARACTERISTICS(V = 11.4V to 16.5V, V = -11.4V to -16.5V, AGNDA = AGNDB = DGND = 0V, VRE ..
MAX532BEWE+ ,Dual, Serial Input, Voltage-Output, Multiplying, 12-Bit DACMAX53219-0046; Rev. 1; 3/94Dual, Serial-Input,Voltage-Output, 12-Bit MDAC_______________
MAX533ACEE ,2.7V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers
MAX534AEEE ,+5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers
MAX534AEEE ,+5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers

MAX2247EBC
2.4GHz SiGe Linear Power Amplifier
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
Features2.4GHz to 2.5GHz Operating RangeUp 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, 3.0V29dB Power GainOn-Chip Power Detector with Buffered OutputInternal 50ΩInput Matching External Bias Control for Current ThrottlebackIntegrated Bias Circuitry+2.7V to +4.2V Single-Supply Operation0.5µA Shutdown ModeTiny Chip-Scale Package (1.5mm ✕2mm)
MAX2247
2.4GHz SiGe Linear Power Amplifier
Ordering Information
19-2520; Rev 5; 1/09
Typical Operating Circuit appears at end of data sheet.
EVALUATION KIT
AVAILABLE
PARTTEMP RANGEPIN-
PACKAGE
TOP
MARK
MAX2247EBC-T-40°C to +85°C4 x 3 UCSP*AAW
MAX2247EWC+T-40°C to +85°C12 WLP+AAX
UCSP is a trademark of Maxim Integrated Products, Inc.
HomeRF is a trademark of HomeRF Working Group.
*Requires special solder temperature profile in the Absolute
Maximum Ratings Sections.
-Denotes a package containing lead(Pb).
+Denotes a lead(pB)-free/RoHS-compliant package.
T = Tape and reel.
TOP VIEW
BIAS
GND3
RF_
OUT
VCC2
GND2
PD_
OUT
VCCB
VCC1
GND1
RF_IN
MAX2247
SHDN
Pin Configuration
MAX2247
2.4GHz SiGe Linear Power Amplifier
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(MAX2247 EV kit, VCC_= +2.7V to +4.2V, SHDN= VCC, RF_IN and RF_OUT terminated to 50Ω, TA= -40°C to +85°C. Typical values
are at +3V and TA= +25°C, unless otherwise noted.) (Note 3)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC1, VCC2, VCCB, RF_OUT to GND....................-0.3V to +4.5V
SHDN, BIAS, PD_OUT................................-0.3V to VCC_+ 0.3V
RF Input Power (50Ωsource)...........................................+5dBm
RF_IN Input Current............................................................±1mA
Maximum VSWR Without Damage........................................10:1
Maximum VSWR for Stable Operation, POUT< +25dBm........5:1
Continuous Power Dissipation (TA= +70°C)
4 ✕3 UCSP, 12 WLP
(derate 28.5mW/°C above +70°C)..................................1.3W
Thermal Resistance (Note 1)............................................35°C/W
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +125°C
UCSP Bump Temperature (soldering) (Note 2)
Infrared (15s)...............................................................+220°C
Vapor Phase (60s).......................................................+215°C
WLP Bump Soldering Temperature.................................+250°C
Continuous Operating Lifetime.....................10yrs ×0.92(TA- 60°C)
(For Operating Temperature, TA≥+60°C)
PARAMETERCONDITIONSMINTYPMAXUNITS
Supply Voltage2.74.2V
POUT = +24dBm, VCC_ = 3.3V317350
POUT = +25dBm, VCC_ = 4.2V345Idle current = 250mA
with VCC = 3.3V
POUT = +23dBm, VCC_ = 3.0V305
POUT = +21dBm with optimized output-matching circuit.
Refer to the MAX2247 EV kit for details.175
POUT = +18dBm with optimized output-matching circuit.
Refer to the MAX2247 EV kit for details.120
Supply Current (Notes 4, 5)
POUT = +15dBm with optimized output-matching circuit.
Refer to the MAX2247 EV kit for details.85
Shutdown Supply CurrentSHDN = 0, no RF signal applied0.510µA
Digital Input Logic High2V
Digital Input Logic Low0.8V
Digital Input Current High-1+5µA
Digital Input Current Low-1+1µA
CAUTION! ESD SENSITIVE DEVICE
Note 1:Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to /thermal-tutorial.
Note 2:This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits the use of only the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow.
Preheating is required. Hand or wave soldering is not recommended.
MAX2247
2.4GHz SiGe Linear Power Amplifier
Note 3:Characteristics are production tested at TA= +25°C. DC specifications over temperature are guaranteed by design
and characterization.
Note 4:Idle current is controlled by external DAC for best efficiency over the entire output power range.
Note 5:Parameter is measured with RF modulation based on IEEE 802.11b standard.
Note 6:Minimum and maximum specifications are guaranteed by design and characterization.
Note 7:Operation outside this range is possible but not guaranteed.
Note 8:The total turn-on time required for PA output power to settle to within 0.5dB of the final value.
Note 9:Specification is corrected for PC board loss of approximately 0.3dB, on the output of the MAX2247 EV kit.
Note 10:Total turn-off time required for PA supply current to fall below 10µA.
Note 11:See the Typical Operating Characteristicsfor statistical variation.
AC ELECTRICAL CHARACTERISTICS
(MAX2247 EV kit, VCC_= +3V, fRF= 2.45GHz, SHDN= VCC, 50ΩRF system impedance, TA= +25°C, unless otherwise noted.) (Note 6)
PARAMETERCONDITIONSMINTYPMAXUNITS
RF Frequency Range
(Notes 5, 7)2.4 to 2.5GHz
TA = +25°C2629.5VCC_ = 3V, POUT = +23dBmTA = -40°C to +85°C25
VCC_ = 3.3V, POUT = +24dBm29.5Power Gain (Notes 3, 5, 9)
VCC_ = 4.2V, POUT = +25dBm30.5
Gain Variation Over Supply
Voltage (Note 5)VCC = 3.0V to 3.6V±0.5dB
VCC_ = 3V2223
VCC_ = 3.3V24Output Power Over Temperature
(Notes 5, 9)
ACPR: First-side lobe < -32dBc,
second-side lobe < -55dBc
VCC_ = 4.2V25
dBm
Saturated Output PowerPIN = +5dBm27.8dBm
Harmonic Output (2f, 3f, 4f)-45dBc
Input VSWROver full PIN range1.8:12.5:1
Output VSWROver full POUT range2:12.5:1
Power Ramp Turn-On Time
(Note 8)0.81.5µs
Power Ramp Turn-Off Time
(Note 10)0.81.5µs
RF Output Detector
Response Time0.9µs
POUT = +23dBm1
POUT = +15dBm0.6RF Output Detector Voltage
(Note 11)
POUT = +7dBm0.47
MAX2247
2.4GHz SiGe Linear Power Amplifier
Typical Operating Characteristics
(VCC_= 3V, fRF= 2.45GHz, with MAX2247 EV kit optimized for POUT= +23dBm. TA= +25°C, unless otherwise noted.)
OUTPUT POWER, SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2247 toc01
SUPPLY VOLTAGE (V)
OUT
(dBm)
SUPPLY CURRENT (mA)
INPUT POWER ADJUSTED TO
KEEP ADJ/ALT CPR = -30dBc/-50dBc
TA = -40°C
TA = +25°CTA = +85°C
POUT
ICC
OUTPUT POWER, SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2247 toc02
SUPPLY VOLTAGE (V)
OUT
(dBm)
SUPPLY CURRENT (mA)
TA = -40°C
TA = +25°CTA = +85°C
POUT
INPUT POWER ADJUSTED TO
KEEP ADJ/ALT CPR = -32dBc/-55dBc
ICC
GAIN vs. SUPPLY VOLTAGE
MAX2247 toc03
SUPPLY VOLTAGE (V)
GAIN (dB)
POUT = +23dBm
TA = -40°C
TA = +25°C
TA = +85°C
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2247 toc04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
POUT = +23dBm
TA = -40°C
TA = +25°C
TA = +85°C
ADJ CPR
vs. SUPPLY VOLTAGE
MAX2247 toc05
SUPPLY VOLTAGE (V)
ADJ CPR (dBc)
POUT = +23dBm
TA = -40°C
TA = +25°CTA = +85°C
ALT CPR
vs. SUPPLY VOLTAGE
MAX2247 toc06
SUPPLY VOLTAGE (V)
ALT CPR (dBc)
POUT = +23dBm
TA = -40°C
TA = +25°C
TA = +85°C
OUTPUT POWER vs. INPUT POWER
MAX2247 toc07
PIN (dBm)
OUT
(dBm)-5-15-10
VCC = +4.2V
VCC = +3.3V
VCC = +3.0V
SUPPLY CURRENT vs. OUTPUT POWER
MAX2247 toc08
POUT (dBm)
SUPPLY CURRENT (mA)2018161412
BIAS CURRENT ADJUSTED
TO KEEP ADJ/ALT CPR =
-32dBc/-55dBc
ADJ/ALT CPR vs. OUTPUT POWER
MAX2247 toc09
POUT (dBm)
ADJ/ALT CPR (dBc)2014161812
ADJ CPR
ALT CPR
MAX2247
2.4GHz SiGe Linear Power Amplifier
ADJ CPR vs. FREQUENCY
MAX2247 toc10
FREQUENCY (MHz)
ADJ CPR (dBc)
POUT = +23dBm
TA = +25°C
TA = +85°C
TA = -40°C
ALT CPR vs. FREQUENCY
MAX2247 toc11
FREQUENCY (MHz)
ALT CPR (dBc)
POUT = +23dBm
TA = +25°CTA = +85°C
TA = -40°C
SUPPLY CURRENT vs. FREQUENCY
MAX2247 toc12
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
POUT = +23dBm
TA = +85°C
TA = +25°C
TA = -40°C
GAIN vs. FREQUENCY
MAX2247 toc13
FREQUENCY (MHz)
GAIN (dB)
POUT = +23dBm
TA = +85°C
TA = +25°C
TA = -40°C
INPUT/OUTPUT RETURN LOSS
vs. FREQUENCY
MAX2247 toc14
FREQUENCY (MHz)
RETURN LOSS (dB)
OUTPUT RETURN
LOSS
INPUT RETURN
LOSS
POWER DETECTOR VOLTAGE
vs. OUTPUT POWER
MAX2247 toc15
POUT (dBm)
POWER DETECTOR VOLTAGE (V)15105
VCC = +2.7V,
TA = +85°C
VCC = +4.2V,
TA = -40°C
OUTPUT POWER HISTOGRAM AT FIXED
1V POWER DETECTOR VOLTAGE
MAX2247 toc16
OCCURRENCES
SIGMA =
0.25dBm
BASED ON
50 PARTS
OUTPUT POWER HISTOGRAM AT FIXED
0.6V POWER DETECTOR VOLTAGE
MAX2247 toc17
OCCURRENCES
SIGMA = 0.237dBm
BASED ON 50 PARTS
OUTPUT POWER HISTOGRAM AT FIXED
0.47V POWER DETECTOR VOLTAGE
MAX2247 toc18
OCCURRENCES
SIGMA = 0.38dBm
BASED ON 50 PARTS
Typical Operating Characteristics (continued)
(VCC_= 3V, fRF= 2.45GHz, with MAX2247 EV kit optimized for POUT= +23dBm. TA= +25°C, unless otherwise noted.)
MAX2247
2.4GHz SiGe Linear Power Amplifier
Pin Description
BUMPNAMEDESCRIPTIONBIASBias Control. The overall current is set by the current sourced through the bias pin. See the Bias Circuitry
section.VCC2S econd - S tag e D C S up p l y V ol tag e. S ets the b i as and exter nal m atchi ng for the second am p l i fi er stag e.
Req ui r es a sm al l i nd uctance. Byp ass to g r ound usi ng the confi g ur ati on i n the Typ i cal Op er ati ng C i r cui t.GND2Second-Stage Ground. See the Applications Information section for detailed layout information.VCC1Fi r st- S tag e D C S up p l y V ol tag e. S ets the b i as and exter nal m atchi ng for the fi r st am p l i fi er stag e. Req ui r es a
sm al l i nd uctance. Byp ass to g r ound usi ng the confi g ur ati on i n the Typ i cal Op er ati ng C i r cui t.GND3Third-Stage Ground. See the Applications Information section for detailed layout information.PD_OUTPower-Detector Output. This output is a DC voltage indicating the PA output power.GND1First-Stage and Bias-Control Circuit GroundRF_OUTRF Output. Open-collector output. Requires a pullup inductor, which is part of the matching network.SHDNShutdown Input. Drive logic low to place the device in shutdown mode. Drive logic high for normal
operation.VCCBBias Circuit DC Supply Voltage. Bypass to ground using the configuration in the Typical Operating Circuit.RF_INRF Input. Internally matched to 50Ω. Requires an external DC-blocking cap.
Functional Diagram/Typical Operating Circuit
MAX2247
BIAS
CIRCUITDETECTOR
RF_IN
RF_OUT
VCCB
PD_OUT
GND1GND3
BIAS
DAC
VCC
10nF
10nF
3.9nH
10nF
GND2
VCC1
VCC2
22pF
22pFC33*
22pF10nFPOWER-DETECTOR
OUTPUT
OUTPUT
SHUTDOWN
CONTROL
VCC
VCC
VCC
INPUT
INPUT
MATCH
SHDN
TRANSMISSION
LINE
*NOT REQUIRED FOR OUTPUT POWER
LESS THAN +23dBm.
REFER TO THE MAX2247 EV KIT FOR LAYOUT AND DESIGN DETAILS.

Partno	Mfg	Dc	Qty	Available	Descript
MAX2247EBC	MAXIM	N/a	5790	avai	2.4GHz SiGe Linear Power Amplifier