ZXNB4204

CONFIDENTIAL A Product Line of Diodes Incorporated ZXNB4204 SINGLE LNB - COMPLETE BIAS, CONTROL AND POWER MANAGEMENT SOLUTION Summary 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. Features Single chip LNB bias, control and power management Integrated regulated supply for LNB Zero volt gate FET switching topology Voltage detection for polarization switching No external control signal filtering required Programmable mixer and FET bias Temperature compensated protected FET bias Full power management protection RCAIA RCAIM GND VIN Pin Assignments G1 VOUT D1 NC ZXNB4204 D2 NC G2 CSUB D3 G3 DM GM Application Single LNB’s C-band LNB’s Top View GND Single LNB System Diagram Gain stages...