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ZLNB2015

Document number: DS32061 Rev. 1 - 2

1 of 7

www.diodes.com

January 2010

NEW PRODUCT

Product Line o

Diodes Incorporated

ADVANCED DBS DUAL CHANNEL VOLTAGE AND TONE DETECTOR

Summary

The ZLNB2015 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 ZLNB2015 offers excellent interference rejection with

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

Features

• Two high accuracy polarisation voltage detection meeting

the most stringent market needs

• 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

FIN1TD1

VCC

VPOL2

FIN2

VPOL1

ENA1

HOR1

BHOR1

ENA2

GND

HOR2

BHOR2

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

2015

RF Gain Stages

GaAs FET’s

Summary of content (7 pages)

PAGE 1
A Product Line of Diodes Incorporated ZLNB2015 ADVANCED DBS DUAL CHANNEL VOLTAGE AND TONE DETECTOR Summary The ZLNB2015 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.
PAGE 2
A Product Line of Diodes Incorporated ZLNB2015 Device Description NEW PRODUCT The ZLNB2015 dual polarization and tone switch controller is one of a wide range of satellite receiver LNB support circuits available from Diodes Incorporated. It features two completely independent channels, each providing logic outputs to control LNB polarization selection, local oscillator selection and downfeed disable.
PAGE 3
A Product Line of Diodes Incorporated ZLNB2015 Maximum Ratings NEW PRODUCT Parameter Supply Voltage Supply Current VPOL 1, 2 Input Voltage (Note 1) Power Dissipation Operating Temperature Range Storage Temperature Range Electrical Characteristics Parameter Operating Voltage Range Supply Current Rating -0.6 to +10 Continuous 50 25 500 -40 to +85 -40 to +150 Unit V mA V mW °C °C (at Tamb = 25°C, Vcc = 3.3V unless otherwise specified. Conditions Min. 3.
PAGE 4
A Product Line of Diodes Incorporated ZLNB2015 EN A1 VC C H OR1 BH OR1 Test Circuit 180pF TD1 FIN1 ZLNB2015 NEW PRODUCT BTD1 CF1 RP1 VPOL1 BTD2 VPOL2 TD2 FIN2 RP2 V1 3.3V 6.8k 6.8k V2 (See Note 1) GND ENA2 HOR 2 BHOR2 CF2 180pF Note 1: V2 Characteristics Type:AC source Frequency:- 22kHz Voltage:300mVp/p Enabled Zero Disabled Tone Input (V2) TD Outputs Switching Delays ZLNB2015 Document number: DS32061 Rev. 1 - 2 4 of 7 www.diodes.
PAGE 5
A Product Line of Diodes Incorporated ZLNB2015 E NA1 V CC H OR 1 B HOR1 Applications Information 180pF TD1 FIN1 ZLNB2015 R1 VPOL1 BTD2 VPOL2 TD2 FIN2 Downfeed 1 R2 6.8k Downfeed 2 6.8k C2 GND E NA2 H OR 2 180pF B HOR2 NEW PRODUCT BTD1 C1 Above is a partial applications circuit for the ZLNB2015 showing all external components needed for a typical twin LNB design. The inputs Vpol1 and Vpol2 are designed to be wired to the power inputs of the LNB via ESD protection resistors (6.8k).
PAGE 6
A Product Line of Diodes Incorporated ZLNB2015 Package Outline Dimensions E A1 D NEW PRODUCT A3 A E2 Pin #1 ID L D2 e b Z QFN16 3x3 Dim Min Max A 0.55 0.65 A1 0.00 0.05 A3 0.15 Typ b 0.18 0.28 D 2.95 3.05 D2 1.40 1.60 e 0.50 BSC E 2.95 3.05 E2 1.40 1.60 L 0.35 0.45 Z 0.625 Typ All Dimensions in mm Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches.
PAGE 7
A Product Line of Diodes Incorporated ZLNB2015 IMPORTANT NOTICE NEW PRODUCT DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).