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AH312
Product Features
* 400 - 2300 MHz * +33 dBm P1dB * +49 dBm Output IP3 * 17 dB Gain @ 900 MHz * Single Positive Supply (+5 V)
The Communications Edge TM
2 Watt, High Gain HBT Amplifier
Preliminary Product Information
Product Description
The AH312 is a high dynamic range driver amplifier in a low-cost surface mount package. The InGaP/GaAs HBT is able to superior achieve performance over a broad frequency range with +49 dBm OIP3 and +33 dBm of 1-dB compressed output power. It is housed in an industry standard SOIC-8 SMT package. All devices are 100% RF and DC tested. The product is targeted for use as driver amplifier for various current and next generation wireless technologies such as GPRS, GSM, CDMA, W-CDMA, and UMTS, where high linearity and high power is required. The internal active bias allows the AH312 to maintain high linearity over temperature and operate directly off a +5 V supply.
Functional Diagram
1 8
2
7
3
6
* SOIC-8 SMT Package
4
5
Function Vref Input Output Vbias GND N/C or GND
Pin No. 1 3 6, 7 8 Slug 2, 4, 5
Specifications
Parameters
Frequency Range S21 - Gain S11 - Input R.L. S22 - Output R.L. Output P1dB Output IP32 Noise Figure IS-95 Channel Power
@ -65 dBc ACPR, 9 Ch .Fwd., 1960MHz
Typical Performance
Units
MHz dB dB dB dBm dBm dB dBm dBm mA V 700
Min
400 9
Typ
2140 11 -15 -8 +33 +49 9.0 +22 +21 800 5
Max
2300
Parameters
Frequency S21 - Gain S11 - Input R.L. S22 - Output R.L. Output P1dB Output IP32 Noise Figure Supply Bias
Units
MHz dB dB dB dBm dBm dB 880 18 -15 -12 +33 +46 8.0
Typical
1960 2140 12 11 -15 -15 -8 -8 +33 +33 +49 +49 8.0 9.0 +5 V @ 800 mA
W-CDMA Channel Power
@ -55 dBc ACPR, 2140 MHz
Typical parameters reflect performance in recommended application circuit:
Operating Current Range Device Voltage
900
Test conditions unless otherwise noted. Specifications apply across entire frequency band. 1. T = 25C, Vsupply = +5 V, Frequency = 2140 MHz, in recommended application circuit 2. 3OIP measured with two tones at an output power of +17 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
Parameters
RF Input Power (continuous) DC Voltage DC Power
Ordering Information
Part No.
AH312 AH312-PCB1960
Rating
+28 dBm +8 V 8W
Description
2 Watt, High Linearity HBT Amplifier
(Available in Tape & Reel)
Fully assembled Evaluation Board
Operation of this device above any of these parameters may cause permanent damage.
This document contains information on a new product. 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
April 2003
AH312
20 15
The Communications Edge TM
2 Watt, High Gain HBT Amplifier
Preliminary Product Information
1960 MHz Application Circuit
VREF VCC C4 10 uF
Performance
S21
10 5 (dB) 0 -5 -10 -15 -20 1500
S21
C5 1000 pF
R4 0 R1 20 R2 22 L1 18 nH
C6 10 pF
C7 1000 pF
S22
S22
RF IN Z = 50 L = 25 C1 22 pF C2 4.7 pF L2 4.7 nH C8 2.2 pF (E)
1
8 7
3
AH312
6
Z = 50 L=5
Z = 50 L=5 C3 100 pF C9 3.3 pF (2)
RF OUT
S11
2000 Frequency (MHz)
S11
2, 4, 5
2500
Typical Performance Frequency 1960 MHz S21 - Gain 11 dB S11 -12 dB S22 -10 dB Output P1dB +33 dBm Output IP3 +49 dBm
NOTES: Install R4 for single supply voltage control.. Remove R4 to adjust bias using VREF
or adjust bias by changing R1. Align C8 at point E and C9 at point 2.
Application Circuit PC Board Layout
Circuit Board Material: .014" FR-4, 4 layers (others added for rigidity), .062" total thickness, 1 oz copper
This document contains information on a new product. 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
April 2003
AH312
The Communications Edge TM
2 Watt, High Gain HBT Amplifier
Preliminary Product Information
Outline Drawing
Product Marking
The component will be marked with an "AH312" designator with a four- or five-digit alphanumeric lot code on the top surface of the package. Tape and reel specifications for this part is located on the website in the "Application Notes" section.
ESD / MSL Information
ESD Classification: Value: Test: Standard: MSL Rating: Standard: Class 1B Passes at 1000V Human Body Model (HBM) JEDEC Standard JESD22-A114 Level 2 JEDEC Standard J-STD-020A
Land Pattern
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.
This document contains information on a new product. 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
April 2003
AH312
Freq (MHz) S11 (dB)
The Communications Edge TM
2 Watt, High Gain HBT Amplifier
Preliminary Product Information
Typical Device Data
S-Parameters (VD = +5 V, ID = 800 mA, T = 25C, calibrated to device leads)
S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang)
50 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000
-0.86 -0.64 -0.68 -0.77 -0.76 -0.83 -0.93 -1.00 -1.15 -1.36 -1.50 -1.83 -2.39 -3.13 -4.47 -6.80 -11.96 -17.27 -8.66 -4.77 -2.76 -1.77 -1.21 -0.90 -0.68 -0.55 -0.43 -0.39 -0.32 -0.28 -0.29
-178.06 178.18 172.85 168.33 164.33 160.16 155.56 150.80 146.04 140.85 134.58 128.47 121.66 112.88 104.01 89.44 86.06 155.02 -179.11 171.18 159.91 150.36 142.90 136.33 130.93 126.46 121.91 118.06 114.61 111.40 108.16
27.55 22.16 16.13 12.84 10.61 8.90 7.46 6.52 5.78 5.24 4.87 4.69 4.74 4.92 5.33 5.78 5.96 5.51 4.41 2.70 0.53 -1.59 -3.21 -5.51 -7.27 -8.99 -10.41 -12.11 -13.28 -15.19 -15.94
113.72 98.81 89.06 82.24 77.31 72.58 67.94 63.48 57.62 52.43 46.90 40.14 32.96 24.06 14.01 0.40 -17.55 -36.29 -56.78 -74.04 -89.86 -100.76 -107.99 -117.09 -123.14 -128.85 -134.93 -138.26 -143.22 -146.48 -149.93
-45.75 -45.46 -42.65 -42.87 -43.96 -43.96 -41.17 -41.65 -41.65 -41.32 -40.36 -40.84 -40.22 -39.22 -38.97 -38.05 -38.96 -37.45 -39.35 -40.75 -43.55 -41.51 -41.56 -41.82 -42.46 -39.74 -39.71 -41.60 -40.99 -39.43 -39.65
30.91 12.80 6.09 9.36 4.69 5.99 6.70 5.77 -5.78 -15.90 -7.84 -29.07 -16.51 -26.86 -48.82 -63.59 -86.32 -117.58 -144.53 -179.69 145.94 125.36 104.25 89.18 73.64 71.79 64.28 58.20 58.20 54.78 48.40
-0.38 -0.38 -0.48 -0.41 -0.48 -0.52 -0.61 -0.67 -0.66 -0.76 -0.71 -0.79 -0.80 -0.72 -0.76 -0.81 -0.60 -0.55 -0.52 -0.52 -0.41 -0.46 -0.54 -0.70 -0.68 -0.63 -0.73 -0.67 -0.73 -0.74 -0.79
-130.98 -157.30 -172.51 -178.09 177.51 175.47 173.63 171.65 170.49 169.86 169.31 168.48 168.22 168.91 167.91 170.99 170.63 168.54 167.41 166.26 164.50 162.43 160.11 159.22 157.84 156.29 154.66 153.37 151.14 149.16 147.52
Thermal Information
Parameters
Operating Case Temperature Storage Temperature Thermal Resistance
.
-40 to +85 C -55 to +150 C 17.5 C/W
Rating
To ensure MTTF > 1x10e6 hrs. The thermal impedance of this device is a function of the Voltage applied at pins 6 and 7 and the Current applied to pins 6,7, and 8. To calculate junction temperature, use the following formula: Tj = Tcase + Thetajc*(Vpin6,7*(Ipin6,7+Ipin8))
This document contains information on a new product. 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
April 2003

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