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| SP5T PIN Diode Reflective Switch V 2.00 MA4SW510 Features n n n MA4SW510 Layout Ultra Broad Bandwidth: 50 MHz to 26 GHz 1.0 dB Insertion Loss, 30 dB Isolation at 20 GHz Reliable. Fully Monolithic, Glass Encapsulated Construction Description The MA4SW510 is a SP5T Series-Shunt broad band switch made with M/A-COM's HMIC TM (Heterolithic Microwave Integrated Circuit) process, US Patent 5,268,310. This process allows the incorporation of silicon pedestals that form series and shunt diodes or vias by imbedding them in a low loss, low dispersion glass. This hybrid combination of Silicon and Glass gives HMIC Switches exceptional low loss and remarkable high isolation through low millimeter-wave frequencies. Applications These high performance switches are suitable for the use in multi-band ECM, Radar, and instrumentation control circuits where high isolation to insertion loss ratios are required. With a standard +5 V/-5 V, TTL controlled PIN diode driver, 50 ns switching speeds are achieved. Nominal Chip Dimensions Chip Dimensions (m) X 1730 Pad Dimensions (m) X 120 Y 1480 Y 120 Chip Absolute Maximum Ratings1 @ TA = +25 C (unless otherwise specified) Parameter Operating Temperature Storage Temperature RF C.W. Incident Power (+/-20 mA) DC Bias Current (Forward) Applied Voltage (Reverse) Value -65 C to +150 C 65 C to +175 C + 30 dBm +/-50 mA 25 V RF J1 J2 J3 J4 J5 J6 Pad Locations (m) X Y 0 0 -750 0 -750 +825 0 +1240 -750 +825 +750 0 Pad Locations Relative to J1 1. Exceeding any of these values may result in permanent damage SP5T PIN Diode Reflective Switch Electrical Specifications @ TA = 25 C, +/- 20 mA Bias Current (On-Wafer Measurements) Parameters Insertion Loss Isolation Input Return Loss Output Return Loss Switching Speed1 MA4SW510 V 2.00 Frequency 20 GHz 20 GHz 20 GHz 20 GHz 10 GHz Minimum 28 - Typical 0.9 38 22 23 50 Maximum 1.4 - Units dB dB dB dB nS 1. Typical switching speed is measured from 10% to 90% of the detected RF voltage driven by a TTL compatible driver. Driver output parallel RC network uses a capacitor between 390 pF - 560 pF and a resistor between 150 - 220 Ohms to achieve 50 ns rise and fall times. Typical Driver Connections Control Level (DC Current) J2 J3 J4 J5 J6 J2-J1 Low Loss Isolation Isolation Isolation Isolation -20 mA +20 mA +20 mA +20 mA +20 mA +20 mA -20 mA +20 mA +20 mA +20 mA +20 mA +20 mA -20 mA +20 mA +20 mA +20 mA +20 mA +20 mA -20 mA -20 mA +20 mA +20 mA +20 mA +20 mA -20 mA Condition of RF Output J3-J1 Isolation Low Loss Isolation Isolation Isolation J4-J1 Isolation Isolation Low Loss Isolation Isolation J5-J1 Isolation Isolation Isolation Low Loss Isolation J6-J1 Isolation Isolation Isolation Isolation Low Loss Note: Typical Switching Speed measured from 10 % to 90 % of detected RF signal driven by a TTL compatible driver. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 SP5T PIN Diode Reflective Switch Typical Microwave Performance TYPICAL INSERTION LOSS 0.000 -0.200 IL ( dB ) -0.400 -0.600 -0.800 -1.000 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 MA4SW510 V 2.00 18.0 20.0 FREQUENCY ( GHz ) J2 J3 J4 J5 J6 TYPICAL ISOLATION 0 -10 -20 -30 -40 -50 -60 -70 -80 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 FREQUENCY ( GHz ) J2 J3 J4 J5 J6 ISOLATION ( dB ) 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 SP5T PIN Diode Reflective Switch Typical Microwave Performance TYPICAL INPUT RETURN LOSS 0. -5. -10. -15. -20. -25. -30. -35. -40. 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 MA4SW510 V 2.00 RL (dB) 18.0 20.0 FREQUENCY ( GHz ) J2 J3 J4 J5 J6 TYPICAL OUTPUT RETURN LOSS 0.000 -5.000 -10.000 -15.000 -20.000 -25.000 -30.000 -35.000 -40.000 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 FREQUENCY ( GHz ) J2 J3 J4 J5 J6 IL ( dB ) 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 SP5T PIN Diode Reflective Switch Operation of the MA4SW510 Switch MA4SW510 V 2.00 The Simultaneous Application of Negative DC Current to the Low Loss Port and Positive DC current to the Remaining Isolated Ports as shown in Figure 1 achieves operation of the MA4SW Series of PIN Diode Switches. The Backside Area of the Die is the RF and DC Return Ground Plane. The DC Return is achieved on Common Port J1. Constant Current Sources should supply the DC Control Currents. The diode voltages at these points will not exceed + 1.5 volts (1.2 volts typical) for Supply Currents up to + 50 mA. In the Low Loss State, the Series Diode must be Forward Biased and the Shunt Diode Reverse Biased. For All the Isolated Ports, the Shunt Diode is Forward Biased and the Series Diode is Reverse Biased. The Bias Network Design should yield > 30 dB RF to DC Isolation. Best Insertion Loss, P1dB, IP3, and Switching Speed is Achieved by using a Voltage Pull-up Resistor in the DC Return Path, ( J1 ). A Minimum Value of | -2V | is recommended at this Return Node, which is achievable with a Standard , +/- 5 V TTL Controlled PIN Diode Driver. A Typical DC Bias Schematic for 2-18 GHz Operation is shown in Figure 1. Fig 1: 2--18 GHz Bias Network Schematic J1 39 pF 22 pF DC Bias 22 nH 39 pF 100 Ohms 22 nH J6 22 pF J2 J5 J4 J3 HMIC Switch Die 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 |
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