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WJA1015
Product Features
* * * * * * * * 50 - 4000 MHz 14 dB Gain +19.5 dBm P1dB +35.5 dBm OIP3 +5V Single Voltage Supply Internal Active Bias Supply Internally matched to 50 Lead-free / RoHS-compliant / Green SOT-89 package
+5V Active-Bias InGaP HBT Gain Block
Product Description
The WJA1015 is a high performance amplifier that offers high linearity in a low-cost surface-mount package. At 900 MHz, the WJA1015 typically provides 14 dB gain, +35.5 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 WJA1015 consists of Darlington pair amplifiers using a high reliability InGaP/GaAs HBT process technology. The MMIC amplifier is internally matched to 50 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 WJA1015 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 14.1 11 11 +19.4 +35.5 4.5 5 67
Max
4000
Parameter
Frequency S21 S11 S22 Output P1dB Output IP3 (2) Noise Figure
Units
MHz dB dB dB dBm dBm dB 500 14.4 -12 -14 +19.5 +39.4 4.4
Typical
900 14.1 -11 -11 +19.4 +35.5 4.5 1900 13.2 -7.7 -7 +17.4 +26.8 4.9 2140 13 -7.2 -6.7 +16.6 +26.3 5.0
1. Test conditions: 25 C, Supply Voltage = +5 V, 50 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.
WJA1015 WJA1015-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 * Web site: www.wj.com
Page 1 of 4
May 2007
WJA1015
+5V Active-Bias InGaP HBT Gain Block
Typical Device RF Performance
Supply Bias = +5 V, Icc = 67 mA
1. Test conditions: T = 25 C, Supply Voltage = +5 V, Icc = 67 mA typical, 50 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
18
T=25C
Return Loss
0 -5
T=25C
16
14
12
S11, S22 (dB)
Gain (dB)
-10 -15 -20
S11
10 0 1000 2000 Frequency (MHz) 3000 4000
-25 0 1000
S22
3000 4000
2000 Frequency (MHz)
OIP3 vs. Frequency
40
Pout=0 dBm/tone
Noise Figure vs. Frequency
6
T=25C
Gain vs. Pout
16
f=900 MHz
35
5
14
OIP3 (dBm)
30
4
25
3
+25C
20 500 2 1000 1500 Frequency (MHz) 2000 2500 0 500 1000 1500 Frequency (MHz) 2000 2500 8 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 * Web site: www.wj.com Page 2 of 4 May 2007
Gain (dB)
NF (dB)
12
10
WJA1015
Vcc = +5V Icc = 67 mA R4 0
+5V Active-Bias InGaP HBT Gain Block
Application Circuit
C3 Bypass Capacitor
RF IN R1 0
L1 RF Choke RF OUT WJA1015 C1 Blocking Capacitor R2 0 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 F chip capacitor R1, R2, R4 0 (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 0 resistors and "Do Not Place" references are not needed for final design.
Typical Device Data
S-Parameters (Vdevice = +5 V, ICC = 63 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
-10.31 -12.28 -12.50 -12.38 -12.21 -11.50 -10.74 -9.86 -9.03 -8.47 -8.02 -7.70 -7.32 -6.82 -6.44 -5.90 -5.67 -5.66 -5.73 -6.02 -6.35 -6.47 -6.91 -7.41 -8.48
-67.98 -146.51 -163.88 -177.31 176.67 169.56 163.56 157.30 150.21 142.21 132.62 121.93 112.83 103.07 95.12 86.18 76.21 64.25 53.11 42.96 33.94 25.50 12.96 -1.03 -14.39
19.25 15.39 14.85 14.58 14.44 14.40 14.14 13.98 13.78 13.54 13.31 13.22 13.10 12.94 12.84 12.67 12.43 12.13 11.93 11.82 11.71 11.43 10.83 10.17 9.69
162.08 164.52 167.56 161.11 151.08 140.65 130.95 120.28 110.73 100.97 91.65 82.60 72.93 62.80 52.81 41.94 31.85 22.65 12.59 3.12 -8.64 -20.19 -32.89 -44.13 -54.14
-21.70 -19.16 -18.95 -18.92 -18.82 -18.65 -18.63 -18.53 -18.51 -18.40 -18.44 -18.46 -18.49 -18.55 -18.67 -18.78 -19.09 -19.19 -19.15 -19.16 -19.03 -19.02 -19.04 -19.04 -18.89
25.28 7.39 2.89 -2.40 -6.24 -9.72 -13.66 -17.22 -21.91 -25.84 -29.93 -33.98 -37.81 -43.11 -47.20 -51.96 -55.24 -58.90 -60.53 -62.61 -65.28 -70.24 -74.88 -78.79 -81.91
-7.53 -14.79 -15.97 -15.65 -14.04 -12.32 -11.37 -10.37 -9.56 -8.54 -7.69 -6.98 -6.69 -6.47 -6.14 -5.63 -5.12 -4.72 -4.65 -4.93 -5.11 -5.06 -4.70 -4.34 -4.14
-51.14 -122.43 -143.83 -154.89 -152.65 -153.10 -157.97 -166.97 -175.43 176.67 171.36 166.70 162.83 153.83 143.36 133.56 126.58 122.79 121.06 116.93 108.57 97.78 88.54 84.46 85.17
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 * Web site: www.wj.com Page 3 of 4 May 2007
WJA1015
+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 WJA1015 will be marked with an "A1015" 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 * Web site: www.wj.com Page 4 of 4 May 2007

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