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WJA1515
+5V Active-Bias InGaP HBT Gain Block
Product Features
* * * * * * * * * Cascadable gain block 50 - 1000 MHz 14 dB Gain +19 dBm P1dB +38 dBm OIP3 +56 dBm OIP2 Operates from +5V @ 70mA Robust 1000V ESD, Class 1C RoHS-compliant SOT-89 package
Product Description
The WJA1515 is a cascadable gain block that offers high linearity in a low-cost surface-mount package. At 200 MHz, the WJA1515 typically provides 14 dB gain, +38 dBm OIP3, and +19 dBm P1dB. The device is housed in a RoHS-compliant SOT-89 industry-standard SMT package using a NiPdAu plating to eliminate the possibility of tin whiskering.
Functional Diagram
GND 4
1
2 GND
3 RF OUT
Applications
* * * * * IF Amplifier VHF/UHF Transmission Wireless Infrastructure General Purpose CATV / FTTH
The WJA1515 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 a bias inductor for operation. An internal active bias is designed to enable stable performance over temperature. A dropping bias resistor is not required allowing the device to be biased directly from +5V supply voltage. The amplifier is targeted for high performance IF applications in existing and next generation wireless technologies. The WJA1515 is ideal for general purpose applications such as LO buffering, IF amplification and pre-driver stages within the 50 to 1000 MHz frequency range.
RF IN
Function Input Output/Bias Ground
Pin No. 1 3 2, 4
Specifications (1)
Parameter
Operational Bandwidth Test Frequency Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (2) Output IP2 Noise Figure Device Voltage Device Current
Typical Performance (3)
Units
MHz MHz dB dB dB dBm dBm dBm dB V mA
Min
50
Typ
200 14.4 12 17 +19.0 +38.2 +56 5.0 5 70
Max
1000
Parameter Units Typical
Frequency S21 S11 S22 Output P1dB Output IP3 (2) Output IP2 Noise Figure MHz dB dB dB dBm dBm dBm dB 70 170 240 500 14.8 14.2 14.0 14.1 -10 -11 -12 -13 -19 -17 -16 -18 +18.8 +18.9 +19.0 +18.9 +37.2 +38.2 +38.5 +38.5 55.7 56.5 57.2 59.7 4.9 5 5 5.2 900 13.9 -16 -16 18.4 35.7 59.6 5.7
3. Listed typical performance parameters measured on evaluation board
1. Test conditions: 25 C, Supply Voltage = +5 V, 50 System. S-parameters and 3OIP measured at device pins. All other specifications measured on evaluation board. 2. 3OIP measured with two tones at an output power of 8 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
Storage Temperature Supply Voltage Input Power jc (junction to paddle) Maximum Junction Temperature
Rating
-55 to +150 C +6.5 V +24 dBm 83.8 C / W 150 C
Ordering Information
Part No.
WJA1515 WJA1515-PCB
Description
+5V Active Bias InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 Package)
50 - 1000 MHz Fully Assembled Eval. Board
Operation of this device above any of these parameters may cause permanent damage.
Standard Tape / Reel size = 1000 pieces on a 7 reel Specifications and information are subject to change without notice Page 1 of 4 Dec 2007
WJ Communications, Inc * Phone 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj.com, www.TriQuint.com
WJA1515
+5V Active-Bias InGaP HBT Gain Block
Typical Evaluation Board RF Performance Plots
Supply Bias = +5V, Icc = 70 mA
1. Test conditions: T = 25 C, Supply Voltage = +5 V, Icc = 70 mA typical, 50 System. 2. 3OIP measured with two tones at an output power of 6 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the OIP3 using a 2:1 rule.
Gain vs. Frequency
20 18
S11, S22 (dB) 0 -5
Return Loss
T=25 C
Noise Figure vs. Frequency
10 9 8
-10 NF (dB) -15 -20 -25
Gain (dB)
16 14 12 10 0 200 400 600 Frequency (MHz) 800 1000
7 6 5 4
-4OC
+25C
+85C
S11
-30 0 200
S22
800 1000
3 2
-40C
0 200
+25C
+85C
800 1000
400 600 Frequency (MHz)
400 600 Frequency (MHz)
Gain vs. Pout
Freq = 200 MHz
OIP3 vs. Frequency
Pout = 8 dBm/tone
OIP3 vs. Vcc
50 45 OIP3 (dBm) 40 35 30
20 18 16 14 12 10 10 12 14 16 18 20 OIP3 (dBm)
50 45 40 35 30
Gain (dB)
-40C
25 0 200
+25C
+85C
800 1000 25 4.5 4.6 4.7 4.8 4.9 Vcc (V) 5.0 5.1 5.2
Pout (dBm)
400 600 Frequency (MHz)
OIP2 vs. Frequency
Pout =2 dBm /tone
P1dB vs. Frequency
20 18
20 18 P1dB (dBm) 16 14 12
P1dB vs. Vcc
75 70 OIP2 (dBm) 65 60 55 50 45 0 200 400 600 Frequency (MHz) 800 1000
P1dB (dBm)
16 14 12
-40C
10
0 200 400
+25C
600
+85C
800 1000
10 4.5 4.6 4.7 4.8 4.9 Vcc (V) 5.0 5.1 5.2
Frequency (MHz)
Icc vs. Temperature
Vcc = +5V
Icc vs. Vcc
120 100
75
70 Icc (mA) Icc (mA) 80 60 40
65
60
-40C
55 -50 -25 0 25 Temperature ( C) 50 75 100 20 4.0 4.5
+25C
+85C
5.5 6.0
5.0 Vcc (V)
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, www.TriQuint.com Page 2 of 4 Dec 2007
WJA1515
+5V Active-Bias InGaP HBT Gain Block
Vcc=+5.00V Icc = 70 mA
Application Circuit
R4 0 C3 Bypass Capacitor
RF IN R1 0
L1 RF Choke RF OUT WJA1515 C1 Blocking Capacitor R2 0 C2 Blocking Capacitor
Recommended Component Values (1) Ref. Name Value / Type L1 470 nH ferrite core wire wound inductor (2) C1, C2 1000 pF NPO chip capacitor C3 0.018 F chip capacitor R1, R2, R4 0 (3) C4, C5, C6, Do Not Place (3) R3, R5, R6, R7, R8
1. 2. 3.
Size 0805 0603 0603 0603
The listed values are contained on the evaluation board to achieve optimal broadband performance For lower cost and performance (100 - 1000 MHz) option use 470 nH air core wire wound inductor. Place holders for the 0 resistors and "Do Not Place" references are not needed for final design.
Typical Device Data
S-Parameters (Vdevice = +5V, ICC = 70 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 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200
-10.40 -11.78 -11.88 -12.00 -11.95 -12.02 -11.99 -12.01 -12.05 -12.10 -12.11 -12.18 -12.23 -12.38 -12.41 -12.57 -12.66 -12.86 -13.09 -13.32 -13.50 -13.71 -13.86 -14.25 -14.51
-68.54 -147.69 -164.70 -171.07 -174.79 -177.26 -179.02 -179.72 178.38 179.03 177.28 175.85 175.72 175.60 175.29 175.07 173.22 172.98 172.66 171.90 169.85 168.68 168.51 167.74 166.55
19.24 15.26 14.69 14.55 14.44 14.42 14.41 14.45 14.41 14.42 14.38 14.38 14.35 14.37 14.32 14.31 14.29 14.32 14.25 14.31 14.33 14.24 14.27 14.24 14.24
162.11 163.11 166.42 165.63 163.62 161.91 159.29 156.24 153.53 150.95 148.07 145.24 142.31 139.51 136.46 134.22 130.82 127.61 124.85 121.92 118.85 115.81 113.00 109.68 106.31
-21.89 -19.06 -18.95 -18.92 -18.90 -18.85 -18.88 -18.92 -18.85 -18.88 -18.81 -18.93 -18.89 -18.90 -18.86 -18.82 -18.84 -18.88 -18.81 -18.85 -18.85 -18.77 -18.82 -18.78 -18.89
24.01 6.36 1.55 -0.67 -2.59 -4.25 -5.75 -6.68 -8.25 -9.32 -10.61 -12.71 -13.92 -15.05 -15.68 -17.70 -19.20 -20.26 -21.34 -22.88 -23.79 -25.09 -26.95 -28.33 -29.13
-7.61 -14.60 -16.18 -16.65 -16.75 -16.96 -17.05 -17.16 -17.32 -17.33 -17.50 -17.54 -17.70 -17.75 -17.65 -17.80 -17.82 -17.63 -17.35 -17.08 -16.89 -16.54 -16.21 -15.81 -15.50
-51.03 -124.79 -147.77 -156.43 -161.77 -164.33 -165.75 -166.54 -167.58 -166.32 -168.12 -168.06 -168.70 -167.88 -165.78 -165.38 -164.94 -162.23 -160.51 -158.22 -157.63 -154.97 -152.98 -151.38 -150.31
Device S-parameters are available for download from the website at: http://www.wj.com
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, www.TriQuint.com Page 3 of 4 Dec 2007
WJA1515
+5V Active-Bias InGaP HBT Gain Block
Mechanical Information
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.
Outline Drawing
Product Marking
The WJA1515 will be marked with an "A1515" 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.
A1515 XXXX-X
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
MSL Rating: Level 3 at +260 C convection reflow Standard: JEDEC Standard J-STD-020
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, www.TriQuint.com Page 4 of 4 Dec 2007

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