UNISONIC TECHNOLOGIES CO., LTD L8020 Preliminary LINEAR INTEGRATED CIRCUIT DUAL POLARISATION SWITCH TWIN LNB MULTIPLEX CONTROLLER DESCRIPTION The UTC L8020 dual polarisation switch controller is one of a wide range of satellite receiver LNB support circuits. Its features include completely independent channels, and every channel provides two logic outputs under the voltage sensitive input. The two inputs of the UTC L8020 have a nominal threshold of 14.5V. Their threshold is temperature compensated to minimize drift. In order to achieve the transient protection by adding only a single resistor per channel, each input has a low and stable input current. Normal and inverted outputs are provided for each input. All outputs can source 15mA and sink 10mA making them suitable to drive TTL and CMOS logic, pin diodes and for IF-amp supply FEATURES switching. The UTC L8020 works in a single supply ranging from 5V * Avoid external components to12V. The quiescent current of the UTC L8020 is 4mA, and there * Provides polarity detection and control is no remarkable change with load or logic state. In order to adapt * Transient resistant the variation of environmental conditions, the ambient operating * Low input and supply current * Temperature compensated input threshold temperature is -40°C~+85°C. The UTC L8020 can be used in applications, such as IF switch * Normal and inverted output available while wide supply operating range box, LNB switch boxes and twin LNBs, replacing many discrete * Dual polarisation switch components to save both manufacturing cost and PCB size as well * Simplify the design as improving reliability. ORDERING INFORMATION Ordering Number Lead Free Halogen Free L8020L-S08-R L8020G-S08-R L8020L-S08-T L8020G-S08-T L8020L-SM1-R L8020G-SM1-R L8020L-SM1-T L8020G-SM1-T www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package Packing SOP-8 SOP-8 MSOP-8 MSOP-8 Tape Reel Tube Tape Reel Tube 1 of 4 QW-R123-015.b L8020 Preliminary PIN CONFIGURATION PIN DESCRIPTION PIN NO. SOP-8 MSOP-8 1 7 2 8 3 1 4 2 5 3 6 4 7 5 8 6 PIN NAME VERT1 HOR1 VERT2 HOR2 GND VP2 VP1 VCC DESCRIPTION Vertical output 1 Horizontal output 1 Vertical output 2 Horizontal output 2 Ground connection pin. Polarity select input 2 Polarity select input 1 Supply voltage UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT 2 of 4 QW-R123-015.b L8020 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER Supply Voltage Input Voltage (VPOL1 and VPOL2) Supply Current RATINGS UNIT -0.6~+15 V 25 V 50 mA MSOP-8 400 Power Dissipation (TA=25°C) PD mW SOP-8 500 Operating Temperature TOPR -40~+85 °C Storage Temperature TSTG -40~+85 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. SYMBOL VCC VIN ICC ELECTRICAL CHARACTERISTICS (TA= 25°C, VCC=5V, ID=10mA (RCAL1 =33kΩ), unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage VCC 5 12 V All inputs and outputs open circuit 10 mA Supply Current ICC IVERT1 =IVERT2 =10mA, VPOL1 =VPOL2 =14V 30 mA IHOR1 =IHOR2 =10mA, VPOL1 =VPOL2 =15.0V 30 mA VPOL1 and VPOL2 Inputs Current IPOL VPOL1 =VPOL2 =25V (Note 1) 10 20 40 μA Threshold Voltage VTPOL (Note 1) (Note 2) 14.0 14.5 15.0 Switching Speed TSPOL 100 μs VERT 1/2 Outputs IVERT1 =IVERT2 =10mA, VPOL1 =VPOL2 =14V VCC-1.0 VCC-0.8 VCC V Voltage High VVH IVERT1 =IVERT2 =15mA, VPOL1 =VPOL2 =14V VCC-1.2 VCC-0.9 VCC V IVERT1 =IVERT2 =10µA, VPOL1 =VPOL2 =14V VCC-0.2 VCC-0.1 VCC V Voltage Low VVL IVERT1 =IVERT2 =-10mA, VPOL1 =VPOL2 =15.0V 0 0.25 0.5 V HOR 1/2 Outputs IHOR1 =IHOR2 =10mA, VPOL1 =VPOL2 =15.0V VCC-1.0 VCC-0.8 VCC V Voltage High VVH IHOR1 =IHOR2 =15mA, VPOL1 =VPOL2 =15.0V VCC-1.2 VCC-0.9 VCC V IHOR1 =IHOR2 =10µA, VPOL1 =VPOL2 =15.0V VCC-0.2 VCC-0.1 VCC V Voltage Low VVLOW IHOR1 =IHOR2 =-10mA, VPOL1 =VPOL2 =14V 0 0.25 0.5 V Notes: 1. VPOL1 and VPOL2 switching thresholds apply over the whole operating temperature range specified above. 2. Applied via 10k resistors UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 4 QW-R123-015.b L8020 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT A twin LNB design is as followed. In this block diagram, the UTC L8020 provides the two polarity switches required to decode the two independent receiver feeds. Horizontal Antenna 1 3 Gain Stage GaAs/HEMTFET X Bias Generator Series Local OSC 4 Gain Stage GaAs/HEMTFET DC Input 13-25V Horizontal PIN Diode MUX X Mixer 2 H/V Output 1 Mixer Control Control Input <=14V-Horizontal >=15V-Vertical L8020 Series Dual H/V Switch Vertical H/V Output 2 Vertical Antenna UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R123-015.b