WJA1000-PCB

WJA1000 Product Features • • • • • • • • 50 – 4000 MHz 19 dB Gain +19.5 dBm P1dB +37 dBm OIP3 +5V Single Voltage Supply Internal Active Bias Supply Internally matched to 50 Ω Lead-free / RoHS-compliant / Green SOT-89 package +5V Active-Bias InGaP HBT Gain Block Product Description The WJA1000 is a high performance amplifier that offers high linearity in a low-cost surface-mount package. At 900 MHz, the WJA1000 typically provides 19 dB gain, +37 dBm OIP3, and +19.5 dBm P1dB. The device is housed in a lead-free/green/RoHS-compliant SOT-89 industrystandard SMT package using a NiPdAu plating to eliminate the possibility of tin whiskering. Functional Diagram GND 4 1 2 GND 3 RF OUT Applications • • • • GSM, PCS, CDMA, WCDMA Repeaters, BTS Transceivers UHF General Purpose The WJA1000 consists of Darlington pair amplifiers using a high reliability InGaP/GaAs HBT process technology. The MMIC amplifier is internally matched to 50Ω and only requires DC-blocking capacitors and an inductive RF choke for operation. An internal active bias is designed to enable stable performance over temperature. It also eliminates the need for a dropping bias resistor and allows the device to be biased directly from a +5V supply voltage. The amplifier is targeted for high performance RF applications in existing and next generation wireless technologies. In addition, the WJA1000 will work for various other applications within the 50 to 4000 MHz frequency range. RF IN Function Input Output/Bias Ground Pin No. 1 3 2, 4 Specifications Parameter Operational Bandwidth Test Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (2) Noise Figure Device Voltage Device Current Typical Performance Units MHz MHz dB dB dB dBm dBm dB V mA Min 50 Typ 900 18.6 11 7.3 +19.3 +37 4.2 5 78 Max 4000 Parameter Frequency S21 S11 S22 Output P1dB Output IP3 (2) Noise Figure Units MHz dB dB dB dBm dBm dB 500 19.4 -15 -11 +20.4 +39.5 4 Typical 900 18.6 -11 -7.3 +19.3 +37 4.2 1900 15.4 -7.6 -3.7 +16.7 +27.5 5 2140 14.6 -7.3 -3.6 +16 +26.6 5 1. Test conditions: 25 ºC, Supply Voltage = +5 V, 50 Ω System. 2. 3OIP measured with two tones at an output power of 0 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature -40 to +85 °C -55 to +150 °C Ordering Information Part No. WJA1000 WJA1000-PCB Rating Description +5V Active Bias InGaP HBT Gain Block (lead-free/green/RoHS-compliant SOT-89 Package) 500 – 2400 MHz Fully Assembled Eval. Board Specifications and information are subject to change without notice Operation of this device above any of these parameters may cause permanent damage. WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 1 of 4 May 2007 WJA1000 +5V Active-Bias InGaP HBT Gain Block Typical Device RF Performance Supply Bias = +5 V, Icc = 78 mA 1. Test conditions: T = 25 ºC, Supply Voltage = +5 V, Icc = 78 mA typical, 50 Ω System. 2. 3OIP measured with two tones at an output power of 0 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. Gain vs. Frequency 22 20 T=25°C Return Loss 0 -5 T=25°C OIP3 vs. Frequency 45 Pout=0 dBm/tone S11, S22 (dB) 18 40 16 14 12 10 8 0 1000 2000 Frequency (MHz) 3000 4000 -10 -15 -20 S11 -25 0 S22 3000 4000 25 400 OIP3 (dBm) Gain (dB) 35 30 +25C 600 -40C +85C 1000 1200 1000 2000 Frequency (MHz) T=25°C 800 Frequency (MHz) Icc vs. Temperature 82 Vcc = +5V Noise Figure vs. Frequency 6 20 Gain vs. Pout f=900 MHz 80 5 18 78 4 76 3 74 -50 2 -25 0 25 50 Temperature (°C) 75 100 0 500 1000 1500 Frequency (MHz) 2000 2500 Gain (dB) Icc (mA) NF (dB) 16 14 12 10 12 14 16 Pout (dBm) 18 20 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 2 of 4 May 2007 WJA1000 Vcc = +5V Icc = 78 mA R4 0Ω +5V Active-Bias InGaP HBT Gain Block Application Circuit C3 Bypass Capacitor RF IN R1 0Ω L1 RF Choke RF OUT WJA1000 C1 Blocking Capacitor R2 0Ω C2 Blocking Capacitor Recommended Component Values(1) Ref. Name Value / Type L1 39 nH wire wound inductor C1, C2 56 pF chip capacitor C3 0.018 μF chip capacitor R1, R2, R4 0 Ω(2) C4, C5, C6, Do Not Place(2) R3, R5, R6, R7, R8 Size 0805 0603 0603 0603 1. The listed values are contained on the evaluation board to achieve optimal broadband performance 2. Place holders for the 0Ω resistors and “Do Not Place” references are not needed for final design. Typical Device Data S-Parameters (Vdevice = +5 V, ICC = 78 mA, T = 25 °C, calibrated to device leads) Freq (MHz) S11 (dB) S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang) 10 50 100 300 500 700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500 -14.09 -18.19 -18.69 -16.77 -14.73 -12.70 -11.00 -9.56 -8.48 -7.92 -7.65 -7.57 -7.30 -7.10 -7.06 -6.96 -7.29 -7.74 -8.30 -9.22 -10.45 -11.76 -13.82 -16.55 -21.45 -53.09 -127.50 -146.63 -153.12 -158.56 -170.76 177.49 165.17 152.47 139.95 126.63 113.48 102.43 91.48 81.50 71.52 60.79 48.64 37.47 26.88 17.20 8.23 -7.97 -32.34 -77.39 22.07 20.22 19.94 19.68 19.38 19.13 18.59 18.09 17.47 16.77 16.02 15.39 14.75 14.09 13.44 12.70 11.92 11.18 10.63 10.16 9.71 9.08 8.19 7.29 6.60 170.25 169.90 168.70 155.24 140.31 125.33 111.25 96.80 83.40 70.28 58.33 47.11 35.59 24.03 12.91 1.67 -8.47 -17.23 -26.74 -36.02 -47.84 -58.90 -71.01 -81.85 -92.31 -25.18 -23.36 -23.16 -22.91 -22.48 -21.97 -21.70 -21.48 -21.41 -21.33 -21.50 -21.68 -21.78 -21.81 -22.08 -22.14 -22.26 -21.96 -21.36 -20.74 -19.91 -19.31 -18.73 -18.19 -17.48 15.57 5.92 3.36 1.74 0.17 -2.43 -6.04 -10.49 -15.87 -20.26 -23.96 -27.56 -30.24 -33.47 -35.95 -37.80 -37.89 -38.33 -37.64 -39.17 -42.30 -47.36 -53.17 -59.86 -66.06 -9.56 -17.35 -18.70 -14.96 -11.18 -8.59 -7.28 -6.22 -5.46 -4.71 -4.09 -3.69 -3.59 -3.55 -3.38 -3.25 -3.11 -3.06 -3.27 -3.72 -4.02 -4.15 -4.03 -4.05 -4.20 -30.52 -55.70 -63.75 -91.53 -111.00 -126.36 -140.72 -156.44 -170.54 176.75 166.94 158.71 150.98 139.55 127.87 117.88 110.78 106.53 103.66 98.18 88.99 79.07 71.73 69.53 71.35 Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 3 of 4 May 2007 WJA1000 +5V Active-Bias InGaP HBT Gain Block This package is lead-free/Green/RoHS-compliant. It is compatible with both lead-free (maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes. The plating material on the leads is NiPdAu. Mechanical Information Outline Drawing Product Marking The WJA1000 will be marked with an “A1000” designator with an alphanumeric lot code marked below the part designator. Tape and reel specifications for this part are located on the website in the “Application Notes” section. MSL / ESD Rating Land Pattern ESD Rating: Value: Test: Standard: ESD Rating: Value: Test: Standard: Class 1C Passes ≥ 1000V min. Human Body Model (HBM) JEDEC Standard JESD22-A114 Class IV Passes ≥ 1000V min. Charged Device Model (CDM) JEDEC Standard JESD22-C101 Mounting Config. Notes 1. Ground / thermal vias are critical for the proper performance of this device. Vias should use a .35mm (#80 / .0135”) diameter drill and have a final plated thru diameter of .25 mm (.010”). 2. Add as much copper as possible to inner and outer layers near the part to ensure optimal thermal performance. 3. Mounting screws can be added near the part to fasten the board to a heatsink. Ensure that the ground / thermal via region contacts the heatsink. 4. Do not put solder mask on the backside of the PC board in the region where the board contacts the heatsink. 5. RF trace width depends upon the PC board material and construction. 6. Use 1 oz. Copper minimum. 7. All dimensions are in millimeters (inches). Angles are in degrees. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 4 of 4 May 2007