AMMP-6640 DC-40 GHz Variable Attenuator Data Sheet Description Features The AMMP-6640 MMIC is a monolithic, voltage variable, GaAs IC attenuator that operates from DC-40 GHz. It is fabricated using Avago Technologies enhancement mode MMIC process with backside ground vias, and gate lengths of approximately 0.25um. The attenuator has a distributed topology that helps to absorb parasitic effects of its series and shunt FETs to make it broadband. * * * * * * * Package Diagram RFin NC NC NC 1 2 3 8 Surface Mount Package, 5.0 x 5.0 x 2 mm Wide Frequency Range : DC-40 GHz I.L. : 5dB @ 40GHz Attenuation Range : >20dB IIP3 : >25dBm P1dB : >26dBm Dual Positive Bias Supply Applications 4 RFout * * * * Microwave Radio Systems Satellite VSAT, DBS Up / Down Link LMDS & Pt - Pt mmW Long Haul Broadband Wireless Access (including 802.16 and 802.20 WiMax) * WLL and MMDS loops 7 6 5 Functional Block Diagram VSE NC VSH NC 1 RFIN NC 2 NC 3 Pin Function 1 2 3 4 5 6 7 8 NC NC NC RFOUT VSH NC VSE RFIN 8 4 RFOUT 7 6 5 VSE NC VSH Top View Package Base: GND RoHS-Exemption Attention: Observe Precautions for handling electrostatic sensitive devices. ESD Machine Model (Class A): 70V ESD Human Body Model (Class 1A): 350V Refer to Avago Application Note A004R: Electrostatic Discharge Damage and Control. Please refer to hazardous substances table on page 8. Note: MSL Rating = Level 2A Electrical Specifications 1. Small/Large -signal data measured in a fully de-embedded test fixture form TA = 25C. 2. Data obtained from on-wafer measurement 3. This final package part performance is verified by a functional test correlated to actual performance at one or more frequencies. 4. Specifications are derived from measurements in a 50 test environment. Aspects of the amplifier performance may be improved over a more narrow bandwidth by application of additional conjugate, linearity, or low noise (opt) matching. Table 1. RF Electrical Characteristics [1,2] Small signal data measured in packaged form on a 2.4mm connector based evaluation board at TA = 25C, Zo = 50 Symbol Parameters and Test Conditions Units Freq. [GHz] Minimum Attenuation (Reference State) Small-signal S21 Vse = 1.2 V, Vsh = 0 dB Maximum Attenuation Small-signal S21 Vse = 0 V, Vsh = 1.2V dB Minimum Typical Maximum 6 2.5 3.1 28 3.8 4.5 26 4 4.6 30 4.4 5 40 5 6 6 23 25 18 23 26 26 23 26 38 23 26 40 25 28 RLin and RLout At Minimum Attenuation Vse = 1.2V, Vsh = 0V dB <40 10 RLin and RLout At Maximum Attenuation Vse = 0V, Vsh = 1.2V dB <40 9 IIP3 at Minimum Attenuation dBm <38 30 P1dB (input) at Minimum Attenuation dBm <40 27 P1dB (input) at Maximum Attenuation dBm <40 27 Table 2. Recommended Operating Range 1. Ambient operational temperature TA = 25C unless otherwise noted. 2. Data obtained from on-wafer measurement Parameter Min. Typical Max. Unit Test Condition Vse Control Current (Min Attenuation), Ic_Vse 10.0 uA Vse=1.2V, Vsh=0 Vse Control Current (Max Attenuation), Ic_Vse 1.5 mA Vse=0V, Vsh=1.2V Vsh Control Current (Min Attenuation), Ic_Vsh 10.0 uA Vse=0V, Vsh=1.2V Vsh Control Current (Max Attenuation), Ic _Vsh 1.5 mA Vse=1.2V, Vsh=0 Comments Table 3. Absolute Minimum and Maximum Ratings [1] Parameter Min. Max. Unit Voltage to Control VSWR, Vc 0 2.5 V RF Input Power, Pin 30 dBm Operating Channel Temperature, Tch +150 dB +150 C 260 C Storage Temperature, Tstg Maximum Assembly Temperature, Tmax -40 60 second maximum Notes: 1. Operation in excess of any one of these conditions may result in permanent damage to this device. The absolute maximum ratings for VC and Pin were determined at an ambient temperature of 25C unless noted otherwise.. 2 AMMP-6640 Typical Performance (TA = 25C, Zin = Zout = 50 ) (Data was obtained from a 2.4mm connector based test fixture and includes connector and board mismatch and losses. Losses may gradually increase from ~0.1dB at 45MHz to ~1.5dB at 40GHz at input and output ports.) Forward Transmission, dB 0 -5 -10 -15 -20 -25 -30 0 5 10 15 20 25 freq, GHz 30 35 40 45 Attenuation (dB) 0 2 4 6 8 10 12 14 16 18 20 22 max Vseries (V) 1.2 0.440 0.435 0.430 0.420 0.410 0.400 0.385 0.375 0.360 0.350 0.346 0 Vshunt (V) 0 0.325 0.383 0.416 0.440 0.465 0.480 0.505 0.535 0.575 0.650 0.845 1.2 Figure 9. Attenuation vs Frequency 0 0 MIN MAX -10 -15 -20 -25 -30 0 5 10 15 20 25 freq, GHz 30 35 40 -20 -25 -30 0 45 -5 40 -10 -20 -25 10 15 20 25 freq, GHz 30 35 40 45 0dB 10dB 30 25 20 -30 -35 5 35 MIN MAX -15 0 Figure 10b. S22 vs Frequency dBm Forward Transmission, dB -15 -40 45 Figure 10a. S11 vs Frequency 15 0 5 10 15 20 25 freq, GHz Figure 11. Insertion Loss vs Frequency 3 -10 -35 -35 -40 MIN MAX -5 Forward Transmission, dB Forward Transmission, dB -5 30 35 40 45 10 6 10 14 18 22 26 Frequency (GHz) Figure 12. IIP3 vs Attenuation Input Power = 0dBm 30 34 38 0 -5 -5 -10 -10 Attenuation (dB) Attenuation (dB) 0 MAX MIN -15 -20 -5 0 5 10 Input Power (dBm) 15 0 0 -5 -5 -10 -10 -15 MAX MIN -20 -25 -5 0 5 10 Input Power (dBm) 15 5 10 Input Power (dBm) 15 -15 20 MAX MIN -20 -25 -35 20 Figure 13c. Attenuation vs Input Power (Frequency = 26 GHz) Insertion Loss (dB) -2 -4 -6 S21 25C S21 -40C S21 85C -8 -10 0 5 10 15 20 25 Freq. (GHz) 30 Figure 14. Minimum Attenuation vs Frequency (Over Temp) -5 0 5 10 Input Power (dBm) 15 20 Figure 13d. Attenuation vs Input Power (Frequency = 40 GHz) 0 Insertion Loss (dB) 0 -30 -30 -35 -5 Figure 13b. Attenuation vs Input Power (Frequency = 18 GHz) Attenuation (dB) Attenuation (dB) -30 20 Figure 13a. Attenuation vs Input Power (Frequency = 6 GHz) 4 -20 -25 -25 -30 MAX MIN -15 35 40 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 0 S21 25C S21 -40C S21 85C 5 10 15 20 25 Freq. (GHz) 30 Figure 15. Maximum Attenuation vs Frequency (Over Temp) 35 40 30 30 29 29 28 27 26 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Frequency (GHz) 31 Pout (dBm) 28 Pin(dBm) 29 28 27 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Frequency (GHz) Figure 16c. Maximum Attenuation vs P1dB 26 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Frequency (GHz) Figure 16b. Mid (10dB) Attenuation vs P1dB 30 26 Pin(dBm) 27 Figure 16a. Minimum Attenuation vs P1dB 5 31 Pin(dBm) Pin(dBm) Pin (dBm) 31 AMMP-6640 Typical Scattering Parameters at Min Attenuation (Tc = 25C, Zo = 50ohm, VSh = 0V, VSer = 1.2V ) Freq GHZ S11 S21 S12 S22 dB Mag Ang dB Mag Ang dB Mag Ang dB Mag Ang 0.045 -20.59 0.093 -6.109 -1.16 0.875 -3.757 -1.14 0.877 -3.707 -20.54 0.094 -6.114 1 -20.96 0.090 -112.848 -1.44 0.847 -75.611 -1.45 0.847 -75.587 -20.17 0.098 -110.547 2 -20.90 0.090 130.830 -1.66 0.826 -146.464 -1.68 0.824 -146.562 -20.33 0.096 138.122 3 -18.61 0.117 35.049 -1.82 0.811 143.316 -1.85 0.808 143.109 -19.79 0.103 29.570 4 -16.62 0.148 -45.942 -1.87 0.806 73.784 -1.93 0.801 74.044 -18.17 0.123 -69.257 5 -16.05 0.158 -129.196 -2.14 0.781 3.785 -2.12 0.784 3.979 -16.99 0.141 -152.676 6 -16.98 0.142 138.700 -2.34 0.764 -66.474 -2.28 0.769 -66.953 -16.40 0.151 129.888 7 -17.65 0.131 36.607 -2.44 0.755 -136.326 -2.27 0.770 -136.603 -16.54 0.149 49.572 8 -16.43 0.151 -57.173 -2.61 0.741 152.645 -2.45 0.754 153.388 -16.78 0.145 -46.837 9 -14.56 0.187 -138.881 -2.70 0.733 82.456 -2.70 0.733 83.198 -15.35 0.171 -154.053 10 -13.06 0.222 143.918 -2.87 0.718 12.539 -2.93 0.714 13.560 -13.27 0.217 108.988 11 -12.46 0.238 64.302 -3.01 0.707 -56.032 -3.03 0.705 -55.954 -12.43 0.239 24.851 12 -12.94 0.225 -23.301 -3.11 0.699 -126.138 -3.08 0.701 -125.997 -12.59 0.235 -53.211 13 -13.89 0.202 -121.617 -3.11 0.699 164.687 -3.11 0.699 164.986 -13.08 0.222 -132.294 14 -13.65 0.208 137.590 -3.13 0.698 92.879 -3.08 0.701 94.416 -13.53 0.211 136.844 15 -13.08 0.222 55.976 -3.36 0.679 23.408 -3.34 0.681 23.275 -13.59 0.209 46.527 16 -11.20 0.276 -18.547 -3.61 0.660 -45.467 -3.66 0.656 -45.977 -12.08 0.249 -43.928 17 -10.59 0.295 -98.833 -3.71 0.652 -118.450 -3.72 0.652 -117.040 -10.51 0.298 -132.859 18 -10.90 0.285 172.391 -3.81 0.645 173.551 -3.93 0.636 171.219 -10.04 0.315 143.325 19 -11.46 0.267 78.681 -3.31 0.684 106.275 -3.67 0.655 104.989 -10.57 0.296 61.870 20 -12.10 0.248 -9.746 -3.56 0.664 34.416 -3.19 0.692 33.917 -11.52 0.265 -20.744 21 -12.61 0.234 -93.291 -3.59 0.661 -37.429 -3.41 0.675 -37.593 -12.01 0.251 -103.746 22 -13.37 0.215 176.125 -3.59 0.662 -109.595 -3.63 0.658 -108.734 -12.45 0.239 175.710 23 -14.68 0.185 76.530 -3.74 0.650 179.527 -3.73 0.651 179.715 -14.52 0.188 92.966 24 -13.40 0.214 -15.549 -3.77 0.648 109.037 -3.68 0.654 109.049 -15.19 0.174 -7.986 25 -11.14 0.277 -89.351 -3.88 0.640 37.445 -3.89 0.639 37.299 -12.06 0.250 -109.538 26 -10.46 0.300 -160.003 -3.66 0.657 -34.248 -3.76 0.649 -33.335 -10.33 0.305 170.911 27 -13.95 0.201 122.286 -3.69 0.654 -105.017 -3.63 0.659 -103.780 -12.67 0.233 104.844 28 -26.96 0.045 -7.455 -3.74 0.650 -177.405 -3.62 0.659 -177.323 -18.31 0.122 74.326 29 -18.83 0.114 -169.005 -3.66 0.657 109.317 -3.57 0.663 108.974 -19.91 0.101 61.923 30 -17.58 0.132 140.161 -3.80 0.646 35.608 -3.84 0.643 36.637 -27.92 0.040 63.110 31 -15.55 0.167 101.679 -3.82 0.644 -37.230 -3.96 0.634 -37.460 -18.94 0.113 75.811 32 -15.44 0.169 40.697 -4.04 0.628 -111.005 -3.99 0.632 -110.036 -18.37 0.121 5.602 33 -20.90 0.090 16.803 -4.15 0.620 174.502 -4.16 0.620 174.691 -28.71 0.037 -17.821 34 -13.20 0.219 7.064 -4.67 0.584 99.870 -4.67 0.584 99.870 -14.25 0.194 -21.678 35 -8.44 0.378 -60.157 -4.74 0.579 98.957 -4.74 0.579 98.957 -8.59 0.372 -98.699 36 -7.64 0.415 -133.942 -5.39 0.538 -113.841 -5.39 0.538 -113.841 -7.27 0.433 -173.594 37 -10.08 0.313 147.491 -5.54 0.529 27.050 -5.55 0.528 27.050 -8.84 0.362 114.100 38 -15.54 0.167 46.775 -5.95 0.504 -42.316 -5.78 0.514 -42.316 -12.74 0.231 46.492 39 -19.52 0.106 -41.298 -5.95 0.504 -42.316 -5.92 0.506 -42.316 -18.73 0.116 -41.318 40 -23.38 0.068 -143.118 -6.33 0.482 -46.309 -6.52 0.472 -46.309 -22.07 0.079 -144.118 Note : Data obtained from 2.4-mm connecter based modules. This data includes connecter loss, and board loss. The measurement reference plane is at the RF connectors. 6 AMMP-6640 Typical Scattering Parameters [1] at Max Attenuation (Tc = 25C, Zo = 50ohm, VSh = 1.2V, VSer = 0V) Freq GHZ S11 S21 S12 S22 dB Mag Ang dB Mag Ang dB Mag Ang dB Mag Ang 0.045 -22.65 0.074 -3.714 -25.71 0.052 -3.634 -25.65 0.052 -4.117 -22.50 0.075 -4.400 1 -22.90 0.072 -76.451 -25.85 0.051 -73.236 -25.85 0.051 -73.268 -22.09 0.079 -78.259 2 -24.58 0.059 -161.676 -25.99 0.050 -142.222 -26.00 0.050 -142.313 -22.82 0.072 -155.550 3 -24.11 0.062 101.530 -26.11 0.050 148.641 -26.11 0.050 148.392 -23.92 0.064 123.941 4 -21.59 0.083 18.123 -26.29 0.049 80.938 -26.29 0.049 80.889 -25.04 0.056 32.641 5 -19.99 0.100 -52.521 -26.36 0.048 11.652 -26.38 0.048 11.850 -23.66 0.066 -60.708 6 -19.80 0.102 -118.321 -26.43 0.048 -57.839 -26.36 0.048 -57.632 -21.52 0.084 -140.866 7 -21.20 0.087 175.229 -26.58 0.047 -127.196 -26.60 0.047 -126.556 -19.97 0.100 150.187 8 -24.22 0.062 101.309 -26.54 0.047 164.136 -26.65 0.047 164.220 -19.83 0.102 87.098 9 -28.18 0.039 10.139 -26.69 0.046 95.104 -26.71 0.046 94.845 -21.51 0.084 26.935 10 -27.13 0.044 -107.208 -26.82 0.046 25.636 -26.80 0.046 25.494 -24.48 0.060 -36.633 11 -22.88 0.072 172.833 -26.80 0.046 -44.007 -26.78 0.046 -43.968 -31.18 0.028 -115.726 12 -20.74 0.092 103.472 -27.17 0.044 -113.390 -27.15 0.044 -113.310 -33.68 0.021 92.248 13 -20.18 0.098 42.030 -27.01 0.045 177.210 -27.01 0.045 177.121 -26.94 0.045 8.795 14 -21.41 0.085 -15.666 -27.35 0.043 108.097 -27.35 0.043 107.494 -24.41 0.060 -48.851 15 -24.58 0.059 -73.775 -27.23 0.044 38.952 -27.27 0.043 39.013 -23.78 0.065 -106.755 16 -33.27 0.022 -131.968 -27.01 0.045 -30.148 -27.05 0.044 -29.849 -24.08 0.063 -157.699 17 -36.89 0.014 33.229 -27.13 0.044 -100.659 -27.09 0.044 -100.443 -24.64 0.059 155.258 18 -29.84 0.032 -37.420 -27.17 0.044 -171.477 -27.13 0.044 -170.955 -25.87 0.051 109.390 19 -29.79 0.032 -95.142 -27.19 0.044 117.989 -27.23 0.044 118.028 -27.62 0.042 63.939 20 -31.77 0.026 -169.635 -27.33 0.043 46.694 -27.35 0.043 46.739 -29.00 0.036 3.213 21 -31.87 0.026 88.863 -27.35 0.043 -24.938 -27.35 0.043 -24.771 -28.31 0.038 -72.475 22 -28.71 0.037 6.714 -27.51 0.042 -97.398 -27.54 0.042 -97.529 -25.92 0.051 -134.415 23 -25.73 0.052 -48.316 -28.20 0.039 -168.786 -28.18 0.039 -168.784 -26.41 0.048 -174.685 24 -23.15 0.070 -76.807 -27.92 0.040 125.832 -27.94 0.040 125.616 -33.76 0.021 174.607 25 -19.86 0.102 -106.347 -27.58 0.042 53.711 -27.56 0.042 53.591 -23.62 0.066 -136.505 26 -18.38 0.121 -140.847 -27.41 0.043 -18.981 -27.62 0.042 -18.782 -17.41 0.135 -174.422 27 -17.76 0.129 -175.089 -27.56 0.042 -91.333 -27.60 0.042 -90.375 -14.88 0.180 142.396 28 -19.65 0.104 145.839 -27.94 0.040 -162.675 -27.70 0.041 -162.228 -14.52 0.188 97.127 29 -24.70 0.058 135.946 -27.47 0.042 125.616 -27.43 0.043 124.900 -17.42 0.135 54.318 30 -21.86 0.081 152.131 -27.72 0.041 48.274 -27.79 0.041 48.827 -26.07 0.050 29.690 31 -16.86 0.144 118.511 -28.11 0.039 -19.913 -28.16 0.039 -20.146 -24.05 0.063 88.323 32 -13.96 0.201 69.230 -28.34 0.038 -93.457 -28.34 0.038 -92.178 -17.59 0.132 49.524 33 -12.33 0.242 16.310 -28.29 0.039 -166.667 -28.31 0.038 -166.374 -14.70 0.184 -12.282 34 -11.62 0.262 -39.798 -28.83 0.036 122.947 -28.73 0.037 123.266 -12.76 0.230 -74.027 35 -11.95 0.253 -94.751 -28.92 0.036 51.835 -28.90 0.036 52.203 -11.89 0.254 -130.447 36 -14.17 0.196 -147.819 -28.78 0.036 -18.645 -28.73 0.037 -19.127 -12.22 0.245 176.047 37 -19.35 0.108 165.315 -28.36 0.038 -91.062 -28.54 0.037 -90.514 -14.09 0.198 123.529 38 -34.02 0.020 -75.922 -28.34 0.038 -93.457 -27.87 0.040 -163.455 -19.13 0.111 79.380 39 -16.68 0.147 -129.367 -29.92 0.032 113.135 -29.71 0.033 114.797 -23.81 0.065 75.556 40 -12.69 0.232 177.764 -30.52 0.030 53.536 -30.46 0.030 53.353 -22.29 0.077 30.587 Note : Data obtained from 2.4-mm connecter based modules. This data includes connecter loss, and board loss. The measurement reference plane is at the RF connectors. 7 AMMP-6640 Biasing and Operation The AMMP-6640 attenuator is driven by voltage ramps placed on Vseries and Vshunt control pins. Operation in this mode requires voltages between 0 to 1.5 volts for Vse and 0 to 1.5 volts for Vsh. The recommended DC control voltage range is Vse = 0 to 1.2 volts and Vsh = 0 to 1.2 volts. A simplified schematic for the AMMP-6640 is shown in Figure 17. In the minimum attenuation state, the series FETs are fully biased at 1.2 volts and the shunt FETs are in the full "off" state at 0 volts. Inversely, for a maximum attenuation state, the series FETs are "off" at 0 volts bias and the shunt FETs are fully on at 1.2 volts. Achieving attenuation levels in-between these two states requires voltage levels similar to those in Table 4. Applying voltage to the shunt FETs sets the source to drain resistance and establishes the main attenuation level. The match is optimized by the amount of bias applied to the series FETs. The match will determine how flat the attenuation level is across a broadband operational range. Package Dimension, PCB Layout and Tape and Reel information NC 1 RFIN NC 2 NC 3 8 4 7 6 5 NC VSE VSH 0.1F 0.1F RFOUT Package Base Ground Figure 17. AMMP-6640 Schematic Ordering Information Part Number Devices Per Container Container AMMP-6640-BLKG 10 Antistatic bag AMMP-6630-TR1G 100 7" Reel AMMP-6630-TR2G 500 7" Reel Please refer to Avago Technologies Application Note 5520, AMxP-xxxx production Assembly Process (Land Pattern A). Names and Contents of the Toxic and Hazardous Substances or Elements in the Products Part Name Toxic and Hazardous Substances or Elements Lead (Pb) (Pb) Mercury (Hg) Hg Cadmium (Cd) Cd Hexavalent (Cr(VI)) Cr(VI) Polybrominated biphenyl (PBB) PBB 100pF capacitor : indicates that the content of the toxic and hazardous substance in all the homogeneous materials of the part is below the concentration limit requirement as described in SJ/T 11363-2006. : indicates that the content of the toxic and hazardous substance in at least one homogeneous material of the part exceeds the concentration limit requirement as described in SJ/T 11363-2006. (The enterprise may further explain the technical reasons for the "x" indicated portion in the table in accordance with the actual situations.) SJ/T 11363-2006 SJ/T 11363-2006 "x" Note: EU RoHS compliant under exemption clause of "lead in electronic ceramic parts (e.g. piezoelectronic devices)" For product information and a complete list of distributors, please go to our web site: 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 (c) 2005-2011 Avago Technologies. All rights reserved. AV02-2236EN - August 19, 2011 Polybrominated diphenylether (PBDE) PBDE