Diodes ZXNB4202 User Manual download pdf

ZXNB4202

ZXNB4202 (CONFIDENTIAL)

Document number: DS32071 Rev. 2 - 5

1 of 3

www.diodes.com

February 2010

Product Line o

Diodes Incorporated

CONFIDENTIAL

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

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

• 22kHz tone detector with unwanted signal rejection for

band switching

• No external control signal filtering required

• Programmable mixer and FET bias

•

Temperature compensated protected FET bias

• Full power management protection

Pin Assignments

Application

• Single and Single Universal LNBs

• Mono-block LNB's

• C-band LNB's

Single LNB System Diagram

Top Vie

Bottom View

OUT

GND

SUB

ZXNB4202

RIM

RIA

GND

LB osc.

HB osc.

OUT

IN / CONTROL

Gain stages

GaAs / HEMT FET

Active

mixer

IF Gain stages

Vertical

Horizontal

ZXNB

4202

Set-top box

receiver

1 2 3

Summary of Contents

Page 1 - ZXNB4202

ZXNB4202 ZXNB4202 (CONFIDENTIAL) Document number: DS32071 Rev. 2 - 5 1 of 3 www.diodes.com February 2010© Diodes Incorporated A Product Line ofDiod

Page 2 - [email protected]

ZXNB4202 ZXNB4202 (CONFIDENTIAL) Document number: DS32071 Rev. 2 - 5 2 of 3 www.diodes.com February 2010© Diodes Incorporated A Product Line ofDiod

Page 3 - CONFIDENTIAL

ZXNB4202 ZXNB4202 (CONFIDENTIAL) Document number: DS32071 Rev. 2 - 5 3 of 3 www.diodes.com February 2010© Diodes Incorporated A Product Line ofDiod

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