ZXNB4202

Document number: DS32071 Rev. 2 - 5

1 of 3

www.diodes.com

February 2010

© Diodes Incorporated

A Product Line of

Diodes Incorporated

SINGLE LNB - COMPLETE BIAS, CONTROL AND POWER MANAGEMENT SOLUTION

Summary

The ZXNB4202 is a single chip power management and control solution for LNB's. The highly integrated solution provides all the

required FET and mixer bias, control detection and decoding, local oscillator switching and a stable power supply for the IF

amplifier and additional support functions. Packaged in a small 16 pin package the ZXNB only requires 3 external components

providing a very small compact solution. Being at the heart of the LNB monitoring the control, power management and

environmental conditions, the ZXNB4202 is able to provide reliable solution eliminating effects such as false switching and over

loading.

Features

band switching

Pin Assignments

Application

Single LNB System Diagram

Top View

Bottom View

D1

D2

G2

V

OUT

G1

LB

C

SUB

ZXNB4202

HB

GND

LB osc.

HB osc.

V

OUT

V

IN / CONTROL

Gain stages

GaAs / HEMT FET

Active

mixer

IF Gain stages

ZXNB

4202

Set-top box

receiver