PRESTO - TH7122 Page

TH7122 27MHz to 930MHz, FSK / FM / ASK, Stand-alone fixed-frequency / Programmable multi-channel user modes, Low active / standby power consumption, PLL-stabilized RF VCO ( LO ) + varactor, On-chip AFC, RSSI allows signal strength indication, Switchable LNA gain RF Transceiver IC

DATA-0220
Product Datasheet for the Melexis TH7122 RF Transceiver IC

Features

27MHz to 930MHz

FSK / FM / ASK

Stand-alone fixed-frequency / Programmable multi-channel user modes

Low active / standby power consumption

PLL-stabilized RF VCO ( LO ) + varactor

On-chip AFC

RSSI allows signal strength indication

Switchable LNA gain

The TH7122 is an FSK / FM / ASK transceiver IC designed to operate in low-power multi-channel programmable or single-channel stand-alone, half-duplex data transmission systems.

Designed for applications based around the European 315MHz, 433MHz, 868MHz and 915MHz Industrial Scientific Medical ( ISM ) bands, the TH7122 operates in the frequency range from 300MHz to 930MHz.

In programmable user mode, the transceiver can operate down to 27MHz by employing an external VCO varactor diode.

Support documents for the TH7122

Below is the support information available for the TH7122 - select a link to download the relevant documentation.

APNO-0035 - Crystal Selection Guide
Application Note for crystal selection on the Melexis RF ( FSK Modulation ) Transmitter / Transceiver ICs
Dated : 10 November 2005 ( Uploaded )
Relevant to : TH72001 / TH72005 / TH72011 / TH72015 / TH72031 / TH72035 / TH7122 / TH71221

APNO-0036 - Cookbook
Cookbook for the Melexis TH7122 and TH71221 Transceiver ICs
Dated : 10 November 2005 ( Uploaded )
Relevant to : TH7122 / TH71221

APNO-0037 - High Speed Datacommunication
Application Note for High speed datacommunications using the Melexis TH7122 and TH71221 Transceiver ICs
Dated : 10 November 2005 ( Uploaded )
Relevant to : TH7122 / TH71221

APNO-0038 - External Microprocessor Reference Oscillator
Application Note for using the Melexis TH7122 and TH71221 Transceiver ICs with an external microprocessor reference oscillator ( RO )
Dated : 10 November 2005 ( Uploaded )
Relevant to : TH7122 / TH71221

APNO-0039 - Narrow Band Applications
Application Note for using the Melexis TH7122 and TH71221 Transceiver ICs in Narrow Band applications
Dated : 10 November 2005 ( Uploaded )
Relevant to : TH7122 / TH71221

DATA-0220 - Product Datasheet
Product Datasheet for the Melexis TH7122 RF Transceiver IC
Dated : 22 December 2005 ( Uploaded )
Relevant to : TH7122