1 www.wantcominc.com rev b 2.5 ? 3.5 ghz low noise amplifier WHM2535-12AE 1 key features: impedance: 50 ohm mtbf 2 : >1,500,000 hrs (171 years) lga (land grid array) package: 6-pin low noise: 0.90 db output ip 3 : 31 dbm gain: 14.0 db p 1db : 14.0 dbm single power supply: 30 ma @ +5v frequency range: 2.5 ~ 3.5 ghz operating temperature: -40 ~ +85 oc input return losses: 16 db or better output return losses: 20 db or better small size: 0.25? x 0.25? x 0.060? (5.0 mm x 5.0 mm x 1.52 mm) built-in functions: dc blocks at input and output, temperature compensation circuits, and auto dc biases. specifications: a) table 1 summary of the electrical specifications WHM2535-12AE at room temperature index testing item symbol test constraints nom (rt) min max unit 1 gain s 21 2.5 ? 3.5 ghz 14 13.0 15 db 2 gain variation ? g 2.5 ? 3.5 ghz +/- 0.25 +/- 0.5 db 3 input return loss s 11 2.5 ? 3.5 ghz 17 16 db 4 output return loss s 22 2.5 ? 3.5 ghz 22 20 db 5 reverse isolation s 12 2.5 ? 3.5 ghz 18 16 db 6 noise figure nf 2.5 ? 3.5 ghz 0.90 1.2 db 7 output power 1db compression point p 1db 2.5 ? 3.5 ghz 14 13 dbm 8 output-third-order interception point ip 3 two-tone, p out +0 dbm each, 1 mhz separation 31 29 dbm 10 current consumption i dd v dd = +5 v 30 25 35 ma 11 power supply voltage v dd +5 +4.7 +5.3 v 12 thermal resistance r th,c junction to case 215 o c/w 13 operating temperature t o -40 +85 o c 14 maximum average rf input power p in, max 2.5 ? 3.5 ghz 10 dbm 1 specifications are subject to change without notice. 2 mtbf: mean time between failure, per tr -nwt-000332, issue 3, september, 1990, t=40 o c WHM2535-12AE lna is a low noise fi gure, wideband, and high linearity smt packaged amplifier. the amplifier offers typical noise figure of 0.90 db and output ip 3 of 31.0 dbm at the frequency range from 2.50 ghz to 3.50 ghz of l, s, and c bands. whm2535-12a e provides excellent performance consistency between each part due to the high volume precision production with advance quality control. WHM2535-12AE lna is most suitable fo r cellular base stations, wireless data communications, tower top receive r amplifiers, last-mile wireless co mmunication system s, and wireless measurement a pp lications.
2 www.wantcominc.com rev b b) passband frequency response as shown in figure 1 , the typical gain of the WHM2535-12AE is 14.0 db across 2.5 to 3.5 ghz. the typical input and output return losses are 17 db and 22 db acr oss the frequency of 2.5 to 3.5 ghz, respectively. figure 2 shows the measured p 1db and ip 3 of the WHM2535-12AE. the typical p 1db and ip 3 are 14 dbm and 31 dbm in the frequency range of 2.5 to 3.5 ghz, respectively. figure 3 illustrates the measured noise figure performance at full temperature. the measured results include the test fixture loss of approximately 0.10 db. the noise figur e is 1.0 db (including 0.10 db test fixture loss) across the frequency range of 2.5 to 3.5 ghz at room temperature. at 85 0 c, WHM2535-12AE only has 0.30 db noise increases. at ?40 0 c, WHM2535-12AE offers approximately 0.25 db less noi se figure than that at room temperature. figure 4 demonstrates the stability factor k of the amplifier. figure 5 is the block diagram of internal circuit of whm 2535-12ae. it is a one-stage amplifier with the dc block capacitors at the input and output rf ports. all the rf matching networks, dc bias circuitries, and temperature compensation circuits are integrated in. figure 6 demonstrates the application schematic diag ram of WHM2535-12AE. it requires the external decoupling capacitors c1 of 0.01 uf to build a lna with wh m2535-12ae. c1 is to be as close to pin 2 as possible. this capacitor eliminates the parasitic. the +5v dc is applied at pin 2. no dc block capacitor is required for both input and output rf ports. the nc pins connected to ground are recommended. for +5v line trace length being longer than 6 inch without a decoupling capacitor, an additiona l 0.01 ~ 0.1 uf de-coupling capacitor with minimum rating voltage of 10v may be needed across the +5v line to ground. the capacitor must be rated in the temperature range of - 40 0 c to 85 0 c to ensure the entire circuit working in the specified temperature range. figure 7 shows the mechanical outline and recommended motherboard layout of WHM2535-12AE. plenty of ground vias on the motherboard are essential for the rf grounding. the width of the 50-ohm lines at the input and output rf ports may be different for different property of the substrate. fig. 1 typical small signal performance. fig. 2 typical p 1db and ip 3 at room temperature. WHM2535-12AE pe rform ance @ 25 c -25 -20 -15 -10 -5 0 5 10 15 20 25 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 fr e q ( ghz ) s11, s21, s22 (db) s11 s21 s22 WHM2535-12AE ip3 and p1db 0 5 10 15 20 25 30 35 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 fr e q (ghz ) dbm ip3 (dbm ) p1db (dbm )
3 www.wantcominc.com rev b fig. 3 noise figure performance at full temperature fig. 4 measured stability factor k fig. 5 block diagram of internal circuit. fig. 6 typical application schematic for WHM2535-12AE WHM2535-12AE noise figure 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.00 2.25 2.50 2.75 3.00 3.25 3.50 fr e q (ghz ) nf ( d b) 25c -40c 85c WHM2535-12AE stability coefficient k 0 1 1 2 2 3 3 4 4 5 5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 fr e q ( ghz ) k
4 www.wantcominc.com rev b WHM2535-12AE mechanical outline, whm-1s: fig. 7 WHM2535-12AE outline ordering information model number WHM2535-12AE waffle pack with the capacity of 100 pieces (10 x 10) is used for the packing. cont act factory for tape and reel packing option for higher volume requirements.
5 www.wantcominc.com rev b small signal s-parameters: !WHM2535-12AE !s-parameters at vds=5v, id= 30 ma, including the test board. !last updated 3/07/04. # ghz s ma r 50 !f(ghz) mag s11 ang s11 mag s21 ang s21 mag s12 ang s12 mag s22 ang s22 0.05 0.999 -9.5 0.001 -50. 6 0.0000 20.4 0.999 -9.0 0.1 0.998 -15.8 0.002 -168. 9 0.0000 109.7 0.998 -15.2 0.2 0.998 -31.6 0.018 135. 0 0.0002 14.4 0.996 -31.0 0.3 0.991 -48.4 0.093 112.2 0.0008 -17.6 0.989 -47.4 0.4 0.989 -66.7 0.324 89.9 0.0026 -36.1 0.974 -65.7 0.5 0.963 -87.4 0.946 61.2 0.0081 -60.5 0.923 -86.9 0.6 0.853 -113.1 2.338 20.1 0.0220 -96.0 0.768 -112.4 0.7 0.578 -135.8 4.162 -29. 1 0.0420 -142.5 0.475 -126.8 0.8 0.399 -132.5 5.381 -74. 7 0.0540 174.9 0.417 -115.3 0.9 0.406 -132.8 5.788 -110. 2 0.0590 144.8 0.483 -125.7 1 0.403 -143.1 5.960 -138. 3 0.0630 122.8 0.478 -144.6 1.1 0.378 -155.6 6.079 -162. 1 0.0670 105.1 0.432 -164.2 1.2 0.337 -167.1 6.163 176. 6 0.0700 89.3 0.364 176.3 1.3 0.296 -177.1 6.163 157. 0 0.0740 75.2 0.293 157.0 1.4 0.264 175.0 6.136 138. 8 0.0770 63.0 0.221 138.8 1.5 0.234 168.5 6.075 122. 2 0.0790 51.5 0.158 120.2 1.6 0.213 162.4 5.975 106. 7 0.0820 40.6 0.102 102.0 1.7 0.202 155.6 5.858 92. 0 0.0850 30.8 0.060 79.9 1.8 0.190 148.8 5.748 78. 1 0.0870 21.9 0.024 49.3 1.9 0.182 141.2 5.647 64.9 0.0900 13.1 0.011 -64.4 2 0.176 132.5 5.550 52.0 0.0920 4.6 0.031 -120.6 2.1 0.172 122.9 5.465 39.6 0.0950 -3.4 0.048 -142.9 2.2 0.166 113.0 5.384 27.5 0.0980 -11.2 0.059 -163.7 2.3 0.158 102.5 5.315 15.7 0.1010 -19.2 0.068 177.6 2.4 0.149 89.0 5.263 4.0 0.1050 -26.7 0.072 158.3 2.5 0.146 76.3 5.212 -7.4 0.1080 -34.2 0.076 139.9 2.6 0.134 63.2 5.154 -18. 8 0.1100 -42.1 0.080 119.1 2.7 0.127 48.5 5.111 -30. 0 0.1130 -50.1 0.079 97.9 2.8 0.122 32.4 5.070 -41. 5 0.1170 -57.7 0.080 78.8 2.9 0.116 16.2 5.044 -53. 0 0.1200 -65.3 0.078 54.4 3 0.111 -1.5 5.029 -64. 5 0.1230 -73.2 0.079 32.6 3.1 0.115 -18.1 4.996 -76. 1 0.1260 -81.1 0.077 11.1 3.2 0.120 -33.9 4.960 -87. 9 0.1290 -89.0 0.071 -12.8 3.3 0.127 -51.9 4.951 -99. 8 0.1320 -96.8 0.068 -38.1 3.4 0.140 -65.6 4.925 -111. 7 0.1340 -105.0 0.056 -67.1 3.5 0.146 -79.5 4.890 -124. 1 0.1370 -113.5 0.046 -105.9 3.6 0.169 -91.9 4.841 -136. 8 0.1400 -122.0 0.046 -158.8 3.7 0.187 -105.5 4.779 -150. 1 0.1430 -130.7 0.066 150.7 3.8 0.219 -115.2 4.690 -163. 9 0.1450 -139.9 0.105 110.7 3.9 0.252 -126.4 4.580 -178. 3 0.1460 -149.8 0.160 81.5 4 0.295 -140.2 4.411 166.8 0.1470 -160.4 0.226 57.1 4.1 0.338 -152.2 4.195 151. 5 0.1480 -171.4 0.307 32.3 4.2 0.388 -166.3 3.894 135. 8 0.1450 178.0 0.391 10.0 4.3 0.436 -179.6 3.552 120. 1 0.1390 166.8 0.476 -12.7 4.4 0.478 166.7 3.153 104.2 0.1320 154.8 0.556 -33.8 4.5 0.515 152.6 2.754 88.5 0.1230 143.6 0.626 -54.7 5 0.594 88.9 1.107 21.6 0.0760 98.1 0.816 -143.6 5.5 0.568 36.9 0.363 -27. 7 0.0450 62.6 0.866 149.5 6 0.515 -8.5 0.106 -58. 9 0.0350 29.0 0.904 95.4
|
