ALM-2506-TR1G

ALM-2506 GPS Low Noise Amplifier Variable Current/Shutdown Function Data Sheet Description Features Avago Technologies’s ALM-2506 is a LNA designed for GPS/ISM/Wimax applications in the (0.9-2.4)GHz frequency range. The LNA uses Avago Technologies’s proprietary GaAs Enhancement-mode pHEMT process to achieve high gain operation with very low noise figures and high linearity. Noise figure distribution is very tightly controlled. Gain and supply current are guaranteed parameters. A CMOS compatible shutdown pin is included to turn the LNA off and provide a variable bias.          The ALM-2506 LNA is useable down to 1V operation. It achieves low noise figures and high gain even at 1V, making it suitable for use in critical low power GPS/ISM band applications. Package Marking and Orientation O BY WW Note: Package marking provides Orientation and identification: “B” = Product Code “Y” = Year “WW” = Work Week      Surface Mount 2.0 x 2.0 x 1.1 mm3 MCOB Advanced GaAs E-pHEMT Low Noise: 0.8 dB typ High Gain: 14.3 dB typ Low component count High IIP3 and IP1dB Wide Supply Voltage: 1V to 3.6V Shutdown current: < 0.1uA CMOS compatible shutdown pin (VSD) current @ 2.85V: 90uA Adjustable bias current via one single external resistor/ voltage Small Footprint: 2x2mm2 Low Profile: 1.1mm typ Lead free and Halogen free Ext matching for non-GPS freq band operation Specifications (25 deg): At 1.575GHz, 2.85V 8mA (Typ) Top View Pin Configuration Pin 6 Pin 5 Pin 1 GND Pin 4 Pin 2 Pin 3 Bottom View LNA I/O’s : 1. NC 2. RF_IN 3. NC 4. VSD 5. RF_OUT 6. VDD       Gain = 14.3 dB (Typ) NF = 0.8 dB (Typ) IIP3 = 4.7 dBm (Typ) IP1dB = 1.8 dBm (Typ) S11 = -11.8 dB (Typ) S22 = -12.4 dB (Typ) Note: Measurements obtained using demoboard described in Figure 4. Simplified Schmatic VSD VDD BIAS RF_IN RF_OUT C C1 Amplifier2 AMP1 C C2 Absolute Maximum Ratings [1] Symbol Parameter Units Absolute Maximum VDS Drain – Source Voltage [2] V 3.6 IDS 2G Drain Current [2] mA 15 Pdiss Total Power Dissipation [3] mW 54 Pin max. RF Input Power dBm +10 TCH Channel Temperature °C 150 TSTG Storage Temperature °C -65 to 150 ch_b Thermal Resistance [4] °C/W 232 Notes: 1. Operation of this device above any one of these parameters may cause permanent damage. 2. Assuming DC quiescent conditions. 3. Board (package belly) temperature TB is 25°C. Derate 4.32mW/°C for TB > 137°C. 4. Channel-to-board thermal resistance measured using 150°C Liquid Crystal Measurement method. Electrical Specifications TA = 25°C, DC bias for RF parameter is VDD = VSD = +2.85V @ 8mA (unless otherwise specified) Table 1. Performance table at nominal operating conditions VDD= VSD = +2.85V, R1 = 18K Ohm, Freq=1.575GHz – Typical Performance Symbol Parameter and Test Condition Units G Gain dB Min. 14.3 Typ NF Noise Figure dB 0.8 IP1dB Input 1dB Compressed Power dBm 1.8 IIP3 Input 3rd Order Intercept Point dBm 4.7 Max. (2-tone @ Fc +/- 2.5MHz) S11 Input Return Loss dB -11.8 S22 Output Return Loss dB - 12.4 Ids Supply Current mA 8 Ish Shutdown Current @ VSD = 0V uA 0.1 Vds Supply Voltage V 2.85 IP1dB1710M Out of Band IP1dB (DCS 1710MHz) blocking dBm 2.9 IIP3OUT Out of Band IIP3 (DCS 1775MHz & 1950MHz) dBm 5.5 Table 2. Typical performance at low operation voltages with R1 (see Fig 5) set to 0 Ohm VDD = +2V, VDD= +1.5V & VDD= +1.0V, Freq=1.575GHz – Typical Performance (VSD=VDD, R1=0 Ohm) Symbol Parameter and Test Condition Units VDD = 2V VDD = 1.5V VDD = 1.0V G Gain dB 15 14.2 12.3 NF Noise Figure dB 0.8 0.9 1 IP1dB Input 1dB Compressed Power dBm -1.4 -2.4 -3.8 IIP3 Input 3rd Order Intercept Point (2-tone @ Fc +/- 2.5MHz) dBm 7.3 4.9 5.2 S11 Input Return Loss dB -13.8 -11.5 -8 S22 Output Return Loss dB -15.5 -14.5 -11.7 Ids Supply Current mA 13 7.5 3.6 Ish Shutdown Current @ VSD = 0V uA 0.1 0.1 0.1 Vds Supply Voltage V 2 1.5 1.0 IP1dB1710M Out of Band IP1dB (DCS 1710MHz) blocking dBm -0.3 -1.9 -2.9 IIP3OUT Out of Band IIP3 (DCS 1775MHz & 1950MHz) dBm 8.7 5.8 3 2 GND SD VDD GND H 0.010 W 0.0220 e 3.48 0.1μF 12Ω / / 33nH 6.8pF 4.7nH RF IN 100pF 5.6nH RF OUT 18k 10nH 6.8pF MAR 2005 TL. GPS LNA Avago Technologies Figure 1. Demoboard and Application Circuit Components +VDD C C3 C=0.1 uF C C5 C=6.8 pF C C4 C=6.8 pF VSD PRL PRL1 R=12 Ohm L=33 nH Johanson 0402 R R1 R=18 kOhm L L3 L=4.7 nH R= Toko LL1005 BIAS RF_OUT RF_IN L L1 L=5.6 nH Johanson 0402 Figure 2. Demoboard schematic 3 C C1 L L2 L=10 nH Johanson 0402 Amplifier2 AMP1 C C2 Notes  L1 and L2 form the input matching network. The LNA module has a integrated coupling and DC-blocking capacitors at the input and output. Best noise performance is obtained using high-Q wirewound inductors. This circuit demonstrates that low noise figures are obtainable with standard 0402 chip inductors. Replacing L1, L2 and L3 with high-Q wirewound inductors (eg. Cilcraft 0402CS series) will yield 0.1dB lower NF and 0.6dB higher Gain.  L3 is an output matching inductor.  C5 is a RF bypass capacitor.  PRL1 is a network that isolates the measurement demoboard from external disturbances. C3 and C4 mitigates the effect of external noise pickup on the VSD and VDD lines. These components are not required in actual operation.  Bias control is achieved by either varying the VSD voltage without R1 or fixing the VSD voltage to VDD and varying R1. Typical value for R1 is 18k Ohm for 8mA total current at VDD=+2.85V.  Higher gain and IP3 performance can be obtained by increasing the supply current. This can be achieved by reducing the value for R1 to obtain desired current.  For low voltage operation such as 1.5V or 1.0V, the R1 may be omitted and VSD connected directly to the supply pins. ALM-2506 Typical Performance Curves, R1 = 18K Ohm (At 25°C unless specified otherwise) 16 0.95 15 0.9 Gain (dB) 14 NF (dB) 13 12 11 1.575GHz 2GHz 2.4GHz 10 9 2.4 2.6 2.8 3 3.2 0.85 0.8 1.575GHz 2GHz 2.4GHz 0.75 0.7 3.4 2.4 2.6 2.8 Figure 3. Gain vs Vdd vs Freq 5 8 4 IP1dB (dBm) 10 IIP3 (dBm) 6 6 4 1.575GHz 2GHz 2.4GHz 2 2.4 2.6 2.8 3 3.2 2 1.575GHz 2GHz 2.4GHz 1 3.4 0 2.4 2.6 Figure 6. IP1dB vs Vdd vs Freq 12 10 Ids (mA) 8 6 4 1.575GHz 2GHz 2.4GHz 2 2.6 2.8 3 Vdd (V) Figure 7. Ids vs Vdd vs Freq 4 2.8 3 Vdd (V) Figure 5. IIP3 vs Vdd vs Freq 2.4 3.4 3 Vdd (V) 0 3.2 Figure 4. NF vs Vdd vs Freq 12 0 3 Vdd (V) Vdd (V) 3.2 3.4 3.2 3.4 ALM-2506 Typical Performance Curves, R1 = 18K Ohm (At 25°C unless specified otherwise) 16 1.4 1.2 15 NF (dB) Gain (dB) 1 14 13 11 2.4 2.6 2.8 3 3.2 0.6 0.4 25 deg -40 deg 85 deg 12 0.8 25 deg -40 deg 85 deg 0.2 0 3.4 2.4 2.6 2.8 Vdd (V) Figure 8. Gain vs Vdd vs Temp 3 6 2.5 IP1dB (dBm) IIP3 (dBm) 5 4 3 2 25 deg -40 deg 85 deg 1 2.4 2.6 2.8 3 3.2 3.4 Ids (mA) 10 9 8 7 25 deg -40 deg 85 deg 6 5 2.8 3 Vdd (V) 5 3.4 25 deg -40 deg 85 deg 0 2.4 2.6 Figure 11. IP1dB vs Vdd vs Temp 11 Figure 12. Ids vs Vdd vs Temp 3.2 1 2.8 Vdd (V) 12 2.6 3 1.5 0.5 Figure 10. IIP3 vs Vdd vs Temp 2.4 3.4 2 Vdd (V) 4 3.2 Figure 9. NF vs Vdd vs Temp 7 0 3 Vdd (V) 3.2 3.4 ALM-2506 Typical Scattering Parameters at 25°C, VDD = 2.85V, IDS = 8 mA Freq. (GHz) S11 Mag. Ang. (dB) Mag. Ang. (dB) Mag. Ang. Mag. Ang. 0.1 0.998 -4.7 15.01 5.633 176.7 -47.96 0.004 89.2 0.526 -5 0.5 0.946 -23.5 14.62 5.381 153.1 -34.42 0.019 78.6 0.503 -19 0.9 0.866 -40.4 13.72 4.854 134.1 -29.90 0.032 71.8 0.475 -31.9 1 0.843 -44.4 13.47 4.714 129.7 -29.37 0.034 70.5 0.468 -34.9 1.1 0.821 -48.2 13.20 4.573 125.5 -28.64 0.037 69.3 0.459 -37.9 1.2 0.8 -52 12.95 4.44 121.5 -27.96 0.04 68.5 0.451 -40.5 1.3 0.78 -55.8 12.69 4.31 117.6 -27.33 0.043 67.4 0.443 -43.2 1.4 0.757 -59.7 12.42 4.178 113.6 -26.94 0.045 66.5 0.435 -45.8 1.5 0.731 -63.4 12.13 4.039 109.7 -26.38 0.048 65.7 0.428 -48.2 1.6 0.705 -66.8 11.83 3.905 106.1 -26.02 0.05 64.8 0.421 -50.7 1.7 0.683 -69.7 11.55 3.78 102.9 -25.51 0.053 64.7 0.414 -52.8 1.8 0.663 -71.6 11.29 3.669 99.5 -25.19 0.055 63.9 0.408 -55.5 1.9 0.643 -73.4 10.99 3.544 96 -24.73 0.058 63.1 0.399 -58 2 0.623 -75.3 10.48 3.343 97 -24.58 0.059 66.3 0.398 -58.8 2.1 0.603 -77.2 10.25 3.253 93.5 -24.15 0.062 65.5 0.398 -59.6 2.2 0.583 -79 10.01 3.165 90.2 -23.74 0.065 64.6 0.397 -60.3 2.3 0.563 -80.9 9.77 3.079 87 -23.48 0.067 63.8 0.396 -61.1 2.4 0.543 -82.8 9.49 2.983 83.8 -23.10 0.07 63 0.396 -62.1 2.5 0.522 -85.3 9.23 2.895 81.1 -22.73 0.073 62.3 0.395 -62.7 3 0.434 -105.2 7.95 2.498 66.6 -21.21 0.087 56.9 0.345 -74.4 3.5 0.334 -119.5 6.47 2.105 57.3 -20.26 0.097 54 0.324 -86.8 4 0.302 -132.1 6.25 2.054 48.8 -18.42 0.12 53.7 0.271 -108 4.5 0.297 -141.8 5.50 1.883 33.1 -16.95 0.142 43.4 0.265 -113.3 5 0.274 -157.1 4.44 1.667 23.9 -15.97 0.159 38 0.259 -118.6 5.5 0.254 -170.1 3.63 1.519 16.1 -15.04 0.177 33.7 0.26 -133.2 6 0.211 178.7 2.82 1.383 6.3 -14.11 0.197 25.3 0.249 -142.7 6.5 0.204 165.4 1.89 1.243 -0.7 -13.64 0.208 16.7 0.263 -154.7 7 0.189 137.1 1.56 1.197 -5.4 -13.27 0.217 12.7 0.306 -171.3 7.5 0.193 117.3 1.03 1.126 -14.4 -12.88 0.227 9.5 0.31 179.8 8 0.206 90.6 0.87 1.105 -22.2 -12.40 0.24 4.7 0.314 170.8 6 S21 S12 S22 ALM-2506 Typical Noise Parameters, VDD = 2.85V, IDS = 8mA Freq GHz Fmin dB opt Mag. opt Ang. Rn/50 NF @ 50 dB 0.5 0.53 0.64 13.8 0.41 1.46 0.9 0.65 0.69 32.2 0.28 1.07 1.5 0.8 0.71 47.4 0.24 1.22 1.7 0.82 0.69 58.1 0.22 1.14 2 0.91 0.68 59.5 0.23 1.1 2.4 0.93 0.64 71.3 0.27 1.72 3 1.21 0.52 99.2 0.16 1.45 3.5 1.33 0.44 135.8 0.12 1.6 4 1.69 0.35 161.3 0.08 1.27 4.5 1.73 0.31 171.3 0.06 1.47 5 1.82 0.32 -179.6 0.06 1.65 5.5 1.98 0.34 -171.2 0.08 2.16 5.8 2.37 0.43 -174.8 0.14 2.88 Part Number Ordering Information Part Number No. of Devices Container ALM-2506-BLKG 100 antistatic bag ALM-2506-TR1G 3000 7” Reel ALM-2506-TR2G 10000 13” Reel Package Dimensions 2.00 ± 0.10 1.10 ± 0.10 0.62 R 0.15 (6X) 0.36 6 PIN 1 PIN 1 (4X) 0.65 2.00 ± 0.10 BY WW 1.66 4 3 (6X) 0.10 (6X) 0.43 (3X) 0.94 Top View 7 Side View Bottom View Device Orientation REEL USER FEED DIRECTION BY WW CARRIER TAPE USER FEED DIRECTION BY WW BY WW TOP VIEW END VIEW COVER TAPE Tape Dimensions 0.220 0.180 B 8.10 7.90 3.50±0.10 1.85 1.65 2.00±0.10 ø 1.60 1.50 THRU 4.00±0.10 SEE NOTE #2 Bo C A C X1 1.20±0.10 X2 1.20±0.10 4.00±0.10 ø 1.050 1.000 THRU Notes: 1. Measured from centerline of sprocket hole to centerline of pocket 2. Cumulative tolerance of 10 sprocket holes is ± 0.20 All dimensions in millimeters unless otherwise stated. 8 A B Ko Section B-B Reel Dimensions Ø178.0±1.0 FRONT BACK SEE DETAIL "X" RECYCLE LOGO FRONT VIEW 65° 7.9 - 10.9* +1.5* 8.4 -0.0 45° R10.65 R5.2 Slot hole ‘b’ BACK 60° Ø55.0±0.5 Ø178.0±1.0 FRONT Slot hole ‘a’ EMBOSSED RIBS RAISED: 0.25mm, WIDTH: 1.25mm BACK VIEW Ø51.2±0.3 For product information and a complete list of distributors, please go to our web site: 14.4* MAX. www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. AV02-2021EN - March 2, 2012