TH7122ENE Melexis Inc, TH7122ENE Datasheet

TH7122ENE

Manufacturer Part Number

TH7122ENE

Description

IC TXRX 930MHZ FSK/FM/ASK 32LQFP

Manufacturer

Melexis Inc

Datasheets

1.EVB7122-433-FSK-C.pdf (44 pages)

2.EVB7122-433-FSK-C.pdf (2 pages)

Specifications of TH7122ENE

Frequency

300MHz ~ 930MHz

Data Rate - Maximum

115Kbps

Modulation Or Protocol

ASK, FM, FSK

Applications

Alarm and Security Systems, RKE, TPMS

Power - Output

-10dBm ~ 11dBm

Sensitivity

-105dBm

Voltage - Supply

2.2 V ~ 5.5 V

Current - Receiving

14mA

Current - Transmitting

23mA @ 10dBm

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Operating Temperature

-40°C ~ 85°C

Package / Case

32-LQFP

Transmitting Current

12mA

Data Rate

115Kbps

Frequency Range

300MHz To 930MHz

Modulation Type

AM, FM, FSK

Sensitivity Dbm

-105dBm

Rf Ic Case Style

LQFP

No. Of Pins

Supply Voltage

RoHS Compliant

Output Power

10dBm

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Memory Size

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

TH7122.3
TH7122ENETR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

TH7122ENETR-ND

Manufacturer:

MELEXIS

Quantity:

8 000

Current page: 1 of 2
Download datasheet (657Kb)

TH7122

27 to 930MHz Transceiver

The TH7122 is a single chip FSK/FM/ASK transceiver IC.

It is designed to operate in low-power multi-channel pro-

grammable or single-channel stand-alone, half-duplex

data transmission systems. It can be used for applica-

tions in automotive, industrial-scientific-medical (ISM),

short range devices (SRD) or similar applications operat-

ing in the frequency range of 300 MHz to 930 MHz. In

programmable user mode, the transceiver can operate

down to 27 MHz by employing an external VCO varactor

diode.

Features

• Single chip solution with only a few

• Stand-alone fixed-frequency user mode

• Programmable multi-channel user mode

• PLL-stabilized RF VCO (LO) with internal

• Lock detect output in programmable

• On-chip AFC for extended input

• 3 wire bus serial control interface

Technical Data Overview

• 315 MHz, 433 MHz, 868 MHz or 915 MHz fixed settings in stand-alone mode

• Extended frequency range with external VCO varactor diode: 27 MHz to 930 MHz

• Frequency range: 300 MHz to 930 MHz in programmable user mode

• Power supply range: 2.2 V to 5.5 V

• Temperature range: -40 °C to +85 °C

• Standby current: 50 nA

• Operating current in receive: 6.5 mA (low gain)

• Operating current in transmit: 12 mA (at –2 dBm)

• Adjustable RF power range: –20 dBm to +10 dBm

• Sensitivity: -105 dBm at FSK with 180 kHz IF filter BW

• Sensitivity: -107 dBm at ASK with 180 kHz IF filter BW

• Max. input level: –10 dBm at FSK and -20 dBm at ASK

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

• Max. data rate with crystal pulling: 20 kbps NRZ

• Max. data rate with direct VCO modulation: 115 kbps NRZ

• Input frequency acceptance: ± 10 to ± 150 kHz

external components

varactor diode

user mode

frequency acceptance range

(depending on FSK deviation)

• FSK for digital data or FM for analog

• RSSI output for signal strength indication

• Peak detector for ASK detection

• Switchable LNA gain for improved

• Automatic PA turn-on after PLL lock

• ASK modulation achieved by PA on/off

• 32 pin Low profile Quad Package (LQFP32)

signal reception

and ASK reception

dynamic range

keying

Related parts for TH7122ENE

TH7122ENE Summary of contents

Page 1

TH7122 27 to 930MHz Transceiver The TH7122 is a single chip FSK/FM/ASK transceiver IC designed to operate in low-power multi-channel pro- grammable or single-channel stand-alone, half-duplex data transmission systems. It can be used for applica- tions in automotive, ...

Page 2

Block Diagram MIX IN_LNA LNA counter ASK VCO OUT_PA PA 25 PS_PA TNK_LO VCC_PLL Applications • General bi-directional half duplex digital data RF signaling or analog signal ...

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