AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier Product Features Product Description • 2.3 – 2.9 GHz • +39 dBm P1dB • 13.8 dB Gain • 1.4% EVM @ 30 dBm Pout Functional Diagram The AP561 is a high dynamic range broadband power amplifier in a surface mount package. The single-stage amplifier has 13.8 dB gain, while being able to achieve high performance for 2.3–2.9 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 process technology. The device incorporates proprietary • Lead-free/green/RoHS-compliant 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 AP561 to operate directly off a commonly used +12V Applications supply and has the added feature of a +5V power down control pin. RoHS-compliant 5x6mm DFN package is • WiMAX CPE/BTS surface mountable to allow for low manufacturing costs to • WiBro CPE/BTS the end user. Function RFIN RFOUT IREF VBIAS NC The AP561 is targeted for use in a balanced or single ended configuration for WiMAX or WiBro applications where high linearity and high power is required. Specifications Parameter Pin No. 4,5,6 9,10,11 14 1 2,3,7,8,12,13 Typical Performance Units Min Operational Bandwidth Test Frequency Output Channel Power Power Gain Input Return Loss Output Return Loss Error Vector Magnitude Operating Current, Icc Collector Efficiency RF Switching Speed Output P1dB Quiescent Current, Icq Vpd(4) Vcc GHz GHz dBm dB dB dB % mA % ns dBm mA V V Typ 2.3 Max 2.9 2.6 +30 13.8 11 6.9 1.4 480 16.8 50 39 300 +5 +12 Parameter Units Test Frequency Channel Power Power Gain Input Return Loss Output Return Loss Error Vector Magnitude Operating Current, Icc Collector Efficiency Output P1dB Quiescent Current, Icq Vpd Vcc GHz dBm dB dB dB % mA % dBm mA V V Typical 2.5 +30 14 11 6.2 2.2 510 15.8 40 2.6 +30 13.8 11 6.9 1.4 480 16.8 39 300 +5 +12 2.7 +30 13.5 14 5.7 2.1 490 16 38 Notes: 1. Test conditions unless otherwise noted: T = 25ºC, 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 Pin max (CW into 50Ω load) Storage Temperature Max Junction Temperature, TJ,max Thermal Resistance, ΘJC +33 dBm -55 to +125 ºC 158 ºC 8.4 °C / W Operation of this device above any of these parameters may cause permanent damage. Ordering Information Part No. Description AP561-F AP561-PCB2500 WiMAX 12V 8W HBT Amplifier 2.5-2.7 GHz Fully Assembled Evaluation Board Standard T/R size = 500 pieces on a 7” reel. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 1 of 8 May 2008 AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier Baseplate Configuration Vcc Vpd GND Application Circuit PC Board Layout Circuit Board Material: 0.0147” Rogers Ultralam 2000, single layer, 1 oz copper, εr = 2.45, Microstrip line details: width = .042”, spacing = .050” Notes: 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. Vcc Vpd Voltage (V) +12 +5 Turn-on Sequence: 1. 2. 3. 4. Attach input and output loads onto the evaluation board. Turn on power supply Vcc = +12V. Turn on power supply Vpd = +5V. Turn on RF power. Turn-off Sequence: 1. 2. 3. Turn off RF power. Turn off power supply Vpd = +5V. Turn off power supply Vcc = +12V. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 2 of 8 May 2008 AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier 2.5-2.7 GHz Application Circuit (AP561-PCB2500) Typical O-FDMA Performance at 25°C Frequency (GHz) 2.5 Channel Power +30 Power Gain 14 Input Return Loss 11 Output Return Loss 6.2 EVM 2.2 Operating Current, Icc 510 Collector Efficiency 15.8 Output P1dB 40 Quiescent Current, Icq Vpd Vcc 2.6 +30 13.8 11 6.9 1.4 480 16.8 39 300 +5 +12 2.7 Units +30 dBm 13.5 dB 14 dB 5.7 dB 2.1 % 490 mA 16 % 38 dBm mA V V C12 C21 C13 R3 D2 C14 C15 R1 R2 D1 C16 C6 C17 C7 C18 C10 C20 C26 C27 C25 C23 C24 C1 C2,R4 Notes: The primary RF microstrip line is 50 Ω. Components shown on the silkscreen but not on the schematic are not used. 1. The edge of C23 is placed right next to C24. 2. The edge of C24 is placed at 85mil from AP561 RFout pin. 3. The edge of C25 is placed at 56mil from AP561 RFin pin. 4. The edge of C26 is placed right next to C25. 5. The edge of C27 is placed 55mil from the edge of C26. C28 C11 C8 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 T=25°C 550 S11, S22 (dB) -5 13 12 500 -10 450 -15 400 11 -20 10 -25 2.0 350 S11 2.0 2.2 2.4 2.6 Frequency (GHz) 2.8 3.0 Efficiency vs Output Average Power vs. Frequency 2.5 GHz 2.6 GHz 2.7 GHz 300 2.2 2.4 2.6 Frequency (GHz) 2.8 3.0 20 22 30 32 Power Gain vs Temperature T=25°C 5 24 26 28 Output Power (dBm) Pout = 30 dBm 15 4 15 14 EVM (%) Gain (dB) Collector Efficiency (%) S22 EVM vs. Output Average Power vs. Frequency T=25°C 20 T=25°C 600 Collector Current (mA) 0 14 Gain (dB) Current vs Output Average Power vs. Frequency Return Loss T=25°C 15 3 10 2 13 5 1 2.5 GHz 2.6 GHz 2.7 GHz 0 2.5 GHz 2.6 GHz 2.5 GHz 2.7 GHz 0 20 22 24 26 28 Output Power (dBm) 30 32 20 22 24 26 28 Output Power (dBm) 30 32 12 -50 -30 -10 10 2.6 GHz 30 50 2.7 GHz 70 90 Temperature (°C ) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 3 of 8 May 2008 AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier Efficiency vs Output Average Power vs Temperature Current vs Output Average Power vs Temperature f=2.6 GHz 600 550 EVM vs. Output Average Power vs Temperature f=2.6 GHz 25 4 20 EVM (%) Icc (mA) Efficiency 500 3 15 450 2 10 400 1 5 350 +25ºC -40ºC +85ºC +25ºC 300 -40ºC +25ºC +85ºC 22 24 26 28 Output Power (dBm) 30 32 -40ºC +85ºC 0 0 20 f=2.6 GHz 5 20 22 24 26 28 Output Power (dBm) 30 32 20 22 24 26 28 Output Power (dBm) 30 32 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 4 of 8 May 2008 AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier 2.3-2.9 GHz Application Circuit Typical O-FDMA Performance at 25°C Frequency (GHz) 2.3 Channel Power +30 Power Gain 13 Input Return Loss 17 Output Return Loss 3.3 EVM 1.9 Operating Current, Icc 630 Collector Efficiency 13 Output P1dB 40 Quiescent Current, Icq Vpd Vcc 2.6 +30 12.7 14 4.0 2.5 640 12.7 39 300 +5 +12 2.9 Units +30 dBm 13.2 dB 16 dB 5.9 dB 2.4 % 570 mA 14.3 % 39 dBm mA V V C12 C21 C13 R3 D2 C14 C15 R1 R2 D1 Notes: The primary RF microstrip line is 50 Ω. Components shown on the silkscreen but not on the schematic are not used. 1. The edge of C26 is placed 10mil from C24. 2. The edge of L4 is placed right next to C26. 3. The edge of C23 is placed at 0mil from AP561 RFout pin. 4. The edge of C24 is placed right next to C23. 5. The center of C27 is placed at 50mil from AP561 RFin pin. 6. The edge of C28 is placed right next to C27. C16 C6 C17 C7 C18 C10 C26 C20 L4 C24 C23 C27 C28 C1 C29 C11 C8 L3 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 T=25°C S11, S22 (dB) -5 13 12 700 -10 600 -15 500 -20 11 400 S11 10 2.0 2.2 2.4 2.6 Frequency (GHz) 2.8 3.0 -25 2.0 Collector Efficiency (%) S22 2.3 GHz 2.6 GHz 2.9 GHz 300 2.2 2.4 2.6 Frequency (GHz) Efficiency vs Output Average Power vs. Frequency 2.8 3.0 20 22 24 26 28 Output Power (dBm) 30 32 EVM vs. Output Average Power vs. Frequency T=25°C 20 T=25°C 800 Collector Current (mA) 0 14 Gain (dB) Current vs Output Average Power vs. Frequency Return Loss T=25°C 15 T=25°C 5 4 EVM (%) 15 3 10 2 5 1 2.3 GHz 2.6 GHz 2.9 GHz 0 2.3 GHz 2.6 GHz 2.9 GHz 0 20 22 24 26 28 Output Power (dBm) 30 32 20 22 24 26 28 Output Power (dBm) 30 32 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 5 of 8 May 2008 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 VPD (V) 5 5 5 5 5 5 IREF (V) 2.85 2.81 2.78 2.76 2.73 2.71 EVM vs. Output Average Power vs. Icq Efficiency vs. Output Average Power vs Icq f=2.4 GHz 4 f=2.4 GHz, 18 16 3 Efficiency (%) R2 (Ω) 330 336 240 343 348 351 EVM (%) Icq (mA) 300 280 260 240 220 200 2 14 12 1 200mA 260mA 220mA 280mA 10 240mA 300mA 0 200mA 260mA 8 28 29 30 Pout (dBm) 31 32 28 29 30 Pout (dBm) 220mA 280mA 31 240mA 300mA 32 r Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 6 of 8 May 2008 AP561 2.3-2.9 GHz WiMAX 8W Power Amplifier Parameter Measurement Information Switching Speed Test Pulse Generator -ve Test Conditions: Vcc = +12V at 25oC Output Power = +30dBm @ 2.5 GHz Rep Rate = 1 KHz, 50% duty cycle Vpd amplitude = +5V R2=200 ohms, C9=12pF (C10, C11 removed for best switching performance) Xtal Detector Voltage =15mV (square law) Cable Length = Lx Oscilloscope +ve Cable Length = Lx Cable Length = Lx CW Signal Source Diode Detector Vpd Attenuator AP56x Evaluation Brd Test Result Waveforms: Vpd = +5V Vpd = +0V RF On Vpd = +5V RF Off Vpd = +5V Delay = 50nS Delay = 50nS RF On Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 7 of 8 May 2008 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 1 2, 3, 7, 8, 12, 13 4, 5, 6 9, 10, 11 14 Backside paddle Function VBIAS N/C RF IN RF Output / Vcc IREF GND MSL / ESD Rating ESD Rating: Value: Test: Standard: Class 1A Passes 250V to <500V Human Body Model (HBM) JEDEC Standard JESD22-A114 ESD Rating: Value: Test: Standard: Class IV Passes 1000V to <2000V Charged Device Model (CDM) 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 WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com , www.TriQuint.com Page 8 of 8 May 2008