A Product Line of Diodes Incorporated ZXNB4204 SINGLE LNB - COMPLETE BIAS, CONTROL AND POWER MANAGEMENT SOLUTION The ZXNB4204 is a single chip power management and control solution for single band satellite Low Noise Blocks (LNB’s). The highly integrated solution provides all the required FET and mixer bias, control detection and a integrated stable power supply for the IF amplifiers and additional support functions within the LNB. Packaged ina small 16 pin package the ZXNB4204 only requires a minimum of 3 external components providing a very small compact solution. Being at the heart of the LNB monitoring the control, power management and environment conditions, the ZXNB4204 is able to provide reliable solution eliminating effects such as false switching and over loading. The functionality and the cost effectiveness of this solution makes ZXNB4204 an ideal part for the domestic china market and the other single band applications. VIN GND Integrated regulated supply for LNB RCAIM Single chip LNB bias, control and power management Zero volt gate FET switching topology VOUT G1 Voltage detection for polarization switching D1 No external control signal filtering required Programmable mixer and FET bias D2 Temperature compensated protected FET bias G2 ZXNB4204 NC NC CSUB Single LNB’s • C-band LNB’s GM Top View Application • DM Full power management protection G3 • • • • • • • • Pin Assignments RCAIA Features D3 CONFIDENTIAL Summary GND Bottom View Single LNB System Diagram Gain stages GaAs / HEMT FET Active mixer IF Gain stages Set-top box receiver ZXNB 4204 V OUT V IN / CONTROL ZXNB4204 (CONFIDENTIAL) Document number: DS32072 Rev. 2 - 5 1 of 3 www.diodes.com February 2010 © Diodes Incorporated A Product Line of Diodes Incorporated ZXNB4204 CONFIDENTIAL To Request This Datasheet In Its Entirety Please Email [email protected] ZXNB4204 (CONFIDENTIAL) Document number: DS32072 Rev. 2 - 5 2 of 3 www.diodes.com February 2010 © Diodes Incorporated A Product Line of Diodes Incorporated ZXNB4204 CONFIDENTIAL IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2010, Diodes Incorporated www.diodes.com ZXNB4204 (CONFIDENTIAL) Document number: DS32072 Rev. 2 - 5 3 of 3 www.diodes.com February 2010 © Diodes Incorporated