TH72031KDC Melexis Inc, TH72031KDC Datasheet

TH72031KDC

Manufacturer Part Number

TH72031KDC

Description

868/915 MHZ, FSK TRANSMITTER

Manufacturer

Melexis Inc

Datasheets

1.TH72031KDC.pdf (20 pages)

2.TH72031KDC.pdf (2 pages)

Specifications of TH72031KDC

Frequency

868MHz, 915MHz

Applications

Alarm and Security Systems, RKE

Modulation Or Protocol

FSK

Data Rate - Maximum

40 kbps

Power - Output

-11dBm ~ 9dBm

Current - Transmitting

5.1mA ~ 13.4mA

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Voltage - Supply

1.9 V ~ 5.5 V

Operating Temperature

-40°C ~ 125°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Features

Memory Size

Other names

Q3477881B

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

TH72031KDC

Manufacturer:

MELEXIS/迈来芯

Quantity:

20 000

Current page: 1 of 2
Download datasheet (498Kb)

TH72031

868/915MHz FSK Transmitter

The TH72031 FSK transmitter IC is designed for applica-

tions in the European 868 MHz industrial-scientific-

medical (ISM) band, according to the EN 300 220 tele-

communications standard. It can also be used for any

other system with carrier frequencies ranging from 850

MHz to 930 MHz (e.g. for applications in the US 902 to

928 MHz ISM band).

The transmitter's carrier frequency f

the frequency of the reference crystal f

PLL synthesizer ensures that each RF value, ranging from

850 MHz to 930 MHz, can be achieved. This is done by

using a crystal with a reference frequency according to:

Features

• Fully integrated PLL-stabilized VCO

• Frequency range from 850 MHz to 930 MHz

• Single-ended RF output

• FSK through crystal pulling allows modulation from DC to 40 kbit/s

• High FSK deviation possible for wideband data transmission

• Wide power supply range from 1.95 V to 5.5 V

• Wide operating temperature range from –40° C to 125° C

• Very low standby current

• On-chip low voltage detector

• High over-all frequency accuracy

• FSK deviation and center frequency independently adjustable

• Adjustable output power range from -12 dBm to +9.5 dBm

• Adjustable current consumption from 5.1 mA to 13.4mA

• Conforms to EN 300 220 and similar standards

• 8-pin Small Outline Integrated Circuit (SOIC8)

ref

= f

/N, where N = 32 is the PLL feedback divider ratio.

ref

is determined by

. The integrated

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TH72031KDC Summary of contents

Page 1

TH72031 868/915MHz FSK Transmitter The TH72031 FSK transmitter IC is designed for applica- tions in the European 868 MHz industrial-scientific- medical (ISM) band, according to the EN 300 220 tele- communications standard. It can also be used for any other ...

Page 2

Block Diagram with external Components 4 mode ENTX control 3 ROI XOSC XBUF XTAL 2 FSKSW CX2 CX1 1 FSKDTA Applications • General digital data transmission • Tire Pressure Monitoring Systems (TPMS) • Remote Keyless Entry (RKE) • Low-power telemetry ...

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