ZLNB2016

ZLNB2016

Document number: DS32073 Rev. 1 - 2

1 of 7

www.diodes.com

February 2010

© Diodes Incorporated

A Product Line of

Diodes Incorporated

STANDARD DBS DUAL CHANNEL VOLTAGE AND TONE DETECTOR

Summary

The ZLNB2016 is a dual channel polarisation (voltage) and band select (tone) detector IC, primarily for satellite applications such

as Low Noise Blocks (LNBs) and satellite distribution systems. An optimised design provides a low supply current and a wide

operating voltage whilst increasing performance and reliability. The ZLNB2016 offers excellent interference rejection with

minimal application cost and packaged in the 3x3mm QFN it provides a very small solution.

Features

•

Two polarisation voltage detectors

•

Two robust, interference tolerant 22kHz tone detection

(without external signal filtering)

•

“No Receiver” detect function for power saving and

isolation control

•

Low quiescent supply current, 2mA typical

•

Wide operating supply voltage 3V to 8V

•

Low external component count minimises application

cost

•

True and inverted outputs to support popular multiplexer

ICs

Pin Assignments

Application

•

Twin Universal LNBs

•

Quad Universal LNBs

•

Multi Output LNBs

•

Satellite Multi-Switches

Twin Universal LNB System Diagram

Top View

Bottom View

BTD1

BTD2

TD2

FIN1

TD1

VPOL2

FIN2

VPOL1

GND

4x2

MUX

ZLPM

Series

Vout

IF Gain

IF Switching

IF Gain,

LNB Control &

Power Mgt.

Down

Conversion

Set-top box

Receiver 1

Set-top box

Receiver 2

ZABG

Series

ZLNB

2016

RF Gain Stages

GaAs FET’s