AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
Product Features Product Description Functional Diagram
2.3 2.9 GHz The AP561 is a high dynamic range broadband power
+39 dBm P1dB amplifier in a surface mount package. The single-stage
13.8 dB Gain amplifier has 13.8 dB gain, while being able to achieve
1.4% EVM @ 30 dBm Pout high performance for 2.32.9 GHz WiMAX applications
with up to 39 dBm of compressed 1dB power.
+12 V Supply Voltage The AP561 uses a high reliability +12V InGaP/GaAs HBT
Lead-free/green/RoHS-compliant process technology. The device incorporates proprietary
bias circuitry to compensate for variations in linearity and
5x6 mm power DFN package current draw over temperature. The device does not require
any negative bias voltage; an internal active bias allows the
Applications AP561 to operate directly off a commonly used +12V Function Pin No.
supply and has the added feature of a +5V power down RFIN 4,5,6
RFOUT
WiMAX CPE/BTS control pin. RoHS-compliant 5x6mm DFN package is IREF 9,10,11
WiBro CPE/BTS surface mountable to allow for low manufacturing costs to VBIAS 14
the end user. NC 1
The AP561 is targeted for use in a balanced or single ended 2,3,7,8,12,13
configuration for WiMAX or WiBro applications where
high linearity and high power is required.
Specifications Typical Performance
Parameter Units Min Typ Max Parameter Units Typical
Operational Bandwidth GHz 2.3 2.6 2.9 Test Frequency GHz 2.5 2.6 2.7
Test Frequency GHz +30 Channel Power dBm
Output Channel Power dBm 13.8 Power Gain dB +30 +30 +30
Power Gain dB 11 Input Return Loss dB
Input Return Loss dB 6.9 Output Return Loss dB 14 13.8 13.5
Output Return Loss dB 1.4 Error Vector Magnitude
Error Vector Magnitude 480 Operating Current, Icc % 11 11 14
Operating Current, Icc % 16.8 Collector Efficiency mA
Collector Efficiency mA 50 Output P1dB % 6.2 6.9 5.7
RF Switching Speed % 39 Quiescent Current, Icq dBm
Output P1dB ns 300 Vpd mA 2.2 1.4 2.1
Quiescent Current, Icq dBm +5 Vcc V
Vpd(4) mA +12 V 510 480 490
Vcc V
V 15.8 16.8 16
40 39 38
300
+5
+12
Notes:
1. Test conditions unless otherwise noted: T = 25C, Vpd = +5V, Vcc = +12, Icq = 300mA at Pout = +30
dBm and f = 2.6 GHz.
2. Using an 802.16-2004 OFDMA, 64QAM-1/2,1024-FFT, 20 symbols, 30 subchannels signal, 9.5 dB
PAR @ 0.01%
3. Switching speed: 50% TTL to 100/0% RF.
4. Vpd used for device power down. (low=RF off)
5. Capable of handling 10:1 VSWR @ 12 VDC, WiMax signal, PoutAVG = 30dBm.
Absolute Maximum Rating
Parameter Rating Ordering Information
Pin max (CW into 50 load) +33 dBm Part No. Description
Storage Temperature -55 to +125 C
Max Junction Temperature, TJ,max 158 C AP561-F WiMAX 12V 8W HBT Amplifier
Thermal Resistance, JC 8.4 C / W
AP561-PCB2500 2.5-2.7 GHz Fully Assembled Evaluation Board
Operation of this device above any of these parameters may cause permanent damage. Standard T/R size = 500 pieces on a 7" reel.
Specifications and information are subject to change without notice
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AP561 Baseplate Configuration
2.3-2.9 GHz WiMAX 8W Power Amplifier
Application Circuit PC Board Layout
Vpd
GND
Vcc
Circuit Board Material: 0.0147" Rogers Ultralam 2000, single layer, 1 oz Notes:
copper, r = 2.45, Microstrip line details: width = .042", spacing = .050" 1. Please note that for reliable operation, the evaluation board will have to be mounted to a much
larger heat sink during operation and in laboratory environments to dissipate the power
consumed by the device. The use of a convection fan is also recommended in laboratory
environments.
2. The area around the module underneath the PCB should not contain any soldermask in order to
maintain good RF grounding.
3. For proper and safe operation in the laboratory, the power-on sequencing is recommended.
Evaluation Board Bias Procedure
Following bias procedure is recommended to ensure proper functionality of AP561 in a laboratory environment. The sequencing is not
required in the final system application.
Bias. Voltage (V)
Vcc +12
Vpd +5
Turn-on Sequence:
1. Attach input and output loads onto the evaluation board.
2. Turn on power supply Vcc = +12V.
3. Turn on power supply Vpd = +5V.
4. Turn on RF power.
Turn-off Sequence:
1. Turn off RF power.
2. Turn off power supply Vpd = +5V.
3. Turn off power supply Vcc = +12V.
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
2.5-2.7 GHz Application Circuit (AP561-PCB2500)
Typical O-FDMA Performance at 25C
Frequency (GHz) 2.5 2.6 2.7 Units
Channel Power +30 +30 +30 dBm
Power Gain 14 13.8 13.5 dB
Input Return Loss 11 11 14 dB
Output Return Loss 6.2 6.9 5.7 dB
EVM 2.2 1.4 2.1 %
Operating Current, Icc 510 480 490 mA
Collector Efficiency 15.8 16.8 16 %
Output P1dB 40 39 38 dBm
Quiescent Current, Icq 300 mA
Vpd +5 V
Vcc +12 V
C12
C21 R3 C13
D2 C14
D1 R2 C15
R1
C6 C10 C16C28 Notes:
C7 C11 C17 The primary RF microstrip line is 50 .
C18 Components shown on the silkscreen but not on the schematic are not used.
C8 1. The edge of C23 is placed right next to C24.
C20 2. The edge of C24 is placed at 85mil from AP561 RFout pin.
C2,R4 C1 C27 3. The edge of C25 is placed at 56mil from AP561 RFin pin.
C26 4. The edge of C26 is placed right next to C25.
C25 5. The edge of C27 is placed 55mil from the edge of C26.
C24
C23
L3
2.5-2.7 GHz Application Circuit Performance Plots
802.16-2004 O-FDMA, 64QAM-1/2, 1024-FFT, 20 symbols and 30 subchannels. 9.5 dB PAR @ 0.01%, 5 MHz Carrier BW
Gain vs. Frequency Return Loss Current vs Output Average Power vs. Frequency
15 T=25C 0 T=25C T=25C
600
14 -5 Collector Current (mA)550
500
Gain (dB) 13 S11, S22 (dB) -10 450
400
12 -15 350
300
11 -20
20
-25 S11 S22 2.5 GHz 2.6 GHz 2.7 GHz
2.0 15
10
2.0 2.2 2.4 2.6 2.8 3.0 2.2 2.4 2.6 2.8 3.0 22 24 26 28 30 32
Frequency (GHz) Frequency (GHz) Output Power (dBm)
Efficiency vs Output Average Power vs. Frequency EVM vs. Output Average Power vs. Frequency Power Gain vs Temperature
20 T=25C 5 T=25C Pout = 30 dBm
Collector Efficiency (%) 4
15
EVM (%) 14Gain (dB)
3
10
2
13
5
1
2.5 GHz 2.6 GHz 2.7 GHz 2.5 GHz 2.6 GHz 2.7 GHz 2.5 GHz 2.6 GHz 2.7 GHz
0 0 12
20 22 24 26 28 30 32 20 22 24 26 28 30 32 -50 -30 -10 10 30 50 70 90
Output Power (dBm) Output Power (dBm) Temperature (C )
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
Current vs Output Average Power vs Temperature Efficiency vs Output Average Power vs Temperature EVM vs. Output Average Power vs Temperature
f=2.6 GHz f=2.6 GHz f=2.6 GHz
25
600 5
550 20 4
500
Icc (mA)
Efficiency15 3
EVM (%)
450
10 2
400
350 5 1 +25C -40C +85C
+25C -40C +85C
+25C -40C +85C
300 0 0
20 22 24 26 28 30 32 20 22 24 26 28 30 32 20 22 24 26 28 30 32
Output Power (dBm) Output Power (dBm) Output Power (dBm)
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
2.3-2.9 GHz Application Circuit
Typical O-FDMA Performance at 25C
Frequency (GHz) 2.3 2.6 2.9 Units
Channel Power +30 +30 +30 dBm
Power Gain 13 12.7 13.2 dB
Input Return Loss 17 14 16 dB
Output Return Loss 3.3 4.0 5.9 dB
EVM 1.9 2.5 2.4 %
Operating Current, Icc 630 640 570 mA
Collector Efficiency 13 12.7 14.3 %
Output P1dB 40 39 39 dBm
Quiescent Current, Icq 300 mA
Vpd +5 V
Vcc +12 V
C12
C21 R3 C13
D2 C14
D1 R2 C15
R1
Notes:
C6 C16 The primary RF microstrip line is 50 .
Components shown on the silkscreen but not on the schematic are not used.
C7 C17 1. The edge of C26 is placed 10mil from C24.
2. The edge of L4 is placed right next to C26.
C10 C18 3. The edge of C23 is placed at 0mil from AP561 RFout pin.
4. The edge of C24 is placed right next to C23.
C8 C11 C29 5. The center of C27 is placed at 50mil from AP561 RFin pin.
6. The edge of C28 is placed right next to C27.
C1 C26 C20
L3 L4
C24
C23
C27
C28
2.3-2.9 GHz Application Circuit Performance Plots
802.16-2004 O-FDMA, 64QAM-1/2, 1024-FFT, 20 symbols and 30 subchannels. 9.5 dB PAR @ 0.01%, 5 MHz Carrier BW
Gain vs. Frequency Return Loss Current vs Output Average Power vs. Frequency
15 T=25C 0 T=25C T=25C
800
14 -5 Collector Current (mA)700
Gain (dB) 13 S11, S22 (dB) -10 600
12 -15 500
11 -20 400
S11 S22 2.3 GHz 2.6 GHz 2.9 GHz
10 -25 300
2.0 2.2 2.4 2.6 2.8 3.0 2.0 2.2 2.4 2.6 2.8 3.0 20 22 24 26 28 30 32
Frequency (GHz) Frequency (GHz) Output Power (dBm)
Efficiency vs Output Average Power vs. Frequency EVM vs. Output Average Power vs. Frequency
20 T=25C 5 T=25C
Collector Efficiency (%) 4
15
3EVM (%)
10
2
5
1
2.3 GHz 2.6 GHz 2.9 GHz 2.3 GHz 2.6 GHz 2.9 GHz
0 0
20 22 24 26 28 30 32 20 22 24 26 28 30 32
Output Power (dBm) Output Power (dBm)
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
2.3 2.9 GHz Application Note: Changing Icq Biasing Configurations
The AP561 can be configured to operate with lower bias current by varying the bias-adjust resistor R2. (Table 1) The
recommended circuit configurations shown previously in this datasheet have the device operating with a 300 mA as the
quiescent current (ICQ). This biasing level represents a tradeoff in terms of EVM and efficiency. Lowering ICQ will improve
upon the efficiency of the device, but degrade the EVM performance. Measured data shown in the plots below represents the
AP561 measured and configured for 2.4 GHz applications. It is expected that variation of the bias current for other frequency
applications will produce similar performance results.
Table 1 : Reduced Current Operation EVM vs. Output Average Power vs. Icq Efficiency vs. Output Average Power vs Icq
Icq R2 VPD IREF 4 f=2.4 GHz 18 f=2.4 GHz,
(mA) () (V) (V) 16
300 330 5 2.85 3
280 336 5 2.81 EVM (%) 14
Efficiency (%)
260 240 5 2.78 2
12
240 343 5 2.76 1
220 348 5 2.73 200mA 220mA 240mA 10 200mA 220mA 240mA
260mA 280mA 300mA
200 351 5 2.71 260mA 280mA 300mA 8
0 28
28 29 30 31 32 29 30 31 32
Pout (dBm) Pout (dBm)
r
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
Parameter Measurement Information
Switching Speed Test
Test Conditions: Cable Length = Lx Oscilloscope
Vcc = +12V at 25oC Pulse Generator -ve
Output Power = +30dBm @ 2.5 GHz
Rep Rate = 1 KHz, 50% duty cycle +ve
Vpd amplitude = +5V
R2=200 ohms, C9=12pF CW Signal Source Cable Length = Lx Cable Length = Lx
(C10, C11 removed for best switching Vpd
performance) Diode Detector
Xtal Detector Voltage =15mV (square law)
Attenuator
AP56x Evaluation Brd
Test Result Waveforms:
Vpd = +5V
Vpd = +0V
RF On
Vpd = +5V Vpd = +5V
RF Off Delay = 50nS Delay = 50nS
RF On
Specifications and information are subject to change without notice
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AP561
2.3-2.9 GHz WiMAX 8W Power Amplifier
Mechanical Information
This package is lead-free/Green/RoHS-compliant. The plating material on the pins is annealed matte tin over copper. It is compatible with
both lead-free (maximum 260 C reflow temperature) and leaded (maximum 245 C reflow temperature) soldering processes.
Outline Drawing Product Marking
The component will be laser marked with a
"AP561-F" product label with an alphanumeric
lot code on the top surface of the package.
Tape and reel specifications for this part will be
located on the website in the "Application
Notes" section.
Functional Pin Layout
Mounting Configuration / Land Pattern
Pin Function
1 VBIAS
2, 3, 7, 8, 12, 13
4, 5, 6 N/C
9, 10, 11 RF IN
14 RF Output / Vcc
Backside paddle IREF
GND
MSL / ESD Rating
ESD Rating: Class 1A
Value: Passes 250V to <500V
Test: Human Body Model (HBM)
Standard: JEDEC Standard JESD22-A114
ESD Rating: Class IV
Value: Passes 1000V to <2000V
Test: Charged Device Model (CDM)
Standard: JEDEC Standard JESD22-C101
MSL Rating: Level 3 at +260 C convection reflow
Standard: JEDEC Standard J-STD-020
Specifications and information are subject to change without notice
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