TH71112ENE Melexis Inc, TH71112ENE Datasheet

TH71112ENE

Manufacturer Part Number

TH71112ENE

Description

IC RECEIVER DBL-CON 32-LQFP

Manufacturer

Melexis Inc

Datasheets

1.EVB71112B-868-FSK-C.pdf (2 pages)

2.TH71112ENE.pdf (20 pages)

Specifications of TH71112ENE

Mfg Application Notes

Receiver Design Appl Note

Frequency

750MHz ~ 990MHz

Sensitivity

-112dBm

Data Rate - Maximum

260 kbps

Modulation Or Protocol

ASK, FM, FSK

Applications

Alarm and Security Systems, RKE, TPMS

Current - Receiving

9.2mA

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Voltage - Supply

2.3 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Package / Case

32-LQFP

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Features

Memory Size

Other names

TH71112
TH71112.1/LQFP32
TH71112.2

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TH71112

868/915MHz Receiver

The TH71112 FSK/FM/ASK double-conversion super-

heterodyne receiver IC is designed for applications in the

European 868 MHz industrial-scientific-medical (ISM)

band, according to the EN 300 220 telecommunications

standard. It can also be used for any other system with

carrier frequencies ranging from 750 MHz to 990 MHz

(e.g. for applications according to FCC part 15).

Features

• Double-conversion superhet architecture for low external component count

• FSK for digital data and FM reception for analog signal transmission

• FSK/FM demodulation with phase-coincidence demodulator

• Low current consumption in active mode and very low standby current

• Switchable LNA gain for improved dynamic range

• RSSI allows signal strength indication and ASK detection

• 32-pin Low profile Quad Flat Package (LQFP32)

Technical Data Overview

• Input frequency range: 750 MHz to 990 MHz

• Power supply range: 2.3 V to 5.5 V @ ASK

• Temperature range: -40 °C to +85 °C

• Standby current: 50 nA

• Operating current: 7.5 mA at low gain mode

• Sensitivity: -112 dBm @ ASK, 180 kHz IF filter BW

• Range of first IF1: 10 MHz to 80 MHz

• Range of second IF2: 400 kHz to 22 MHz

• Maximum data rate: 260 kbps NRZ @ ASK

• Image rejection: > 60 dB (e.g. with SAW front-end filter and at 10.7 MHz IF2)

• Maximum input level: -10 dBm at ASK

• Spurious emission: < -70 dB

• Input frequency acceptance: up to ±100 kHz

• RSSI range: 70 dBm

• FM/FSK deviation range: ±2.5 kHz to ±80 kHz

• Maximum analog modulation frequency: 15 kHz

-106 dBm @ FSK, 180 kHz IF filter BW

9.2 mA at high gain mode

180 kbps NRZ @ FSK

0 dBm at FSK

Related parts for TH71112ENE

TH71112ENE Summary of contents

Page 1

TH71112 868/915MHz Receiver The TH71112 FSK/FM/ASK double-conversion super- heterodyne receiver IC is designed for applications in the European 868 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard. It can also be used for any other system ...

Page 2

Block Diagram MIX1 IN_LNA LNA 31 LO1 DIV16 VCO1 32 30 Applications • General digital and analog data receiving • Tire Pressure Monitoring Systems (TPMS) • Remote Keyless Entry (RKE) • Wireless access control • ...

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