ZXNB4204WV Datasheet, PDF (1/3 Pages) Diodes Incorporated – SINGLE LNB - COMPLETE BIAS, CONTROL AND POWER MANAGEMENT SOLUTION

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
Pin Assignments
G1
V_OUT
D1
NC
ZXNB4204
D2
NC
G2
C_SUB
Application
• Single LNB’s
• C-band LNB’s
Top View
GND
Single LNB System Diagram
Gain stages
GaAs / HEMT FET
Active IF Gain stages
mixer
ZXNB
4204
ZXNB4204 (CONFIDENTIAL)
Document number: DS32072 Rev. 2 - 5
V _OUT
V _{IN / CONTROL}
1 of 3
www.diodes.com
Bottom View
Set-top box
receiver
February 2010
© Diodes Incorporated