th71221 Melexis Company, th71221 Datasheet

th71221

Manufacturer Part Number

th71221

Description

Transceiver - 27 To 930mhz, Fsk/fm/ask, Multi-channel 32l Qfn 5x5 Quad

Manufacturer

Melexis Company

Datasheet

1.TH71221.pdf (44 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

th71221ELQ

Manufacturer:

SANDISK

Quantity:

101

Company:

H&T Electronics

Part Number:

th71221ELQ-BAA-000-RE

Quantity:

1 554

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Features

Ordering Information

Application Examples

General Description

The TH71221 is a single chip FSK/FM/ASK transceiver IC. It is designed to operate in low-power multi-

channel programmable or single-channel stand-alone, half-duplex data transmission systems. It can be used

for applications in automotive, industrial-scientific-medical (ISM), short range devices (SRD) or similar appli-

cations operating in the frequency range of 300 MHz to 930 MHz. In programmable user mode, the trans-

ceiver can operate down to 27 MHz by employing an external VCO varactor diode.

39010 071221

Rev. 006

Part Number

TH71221.2

Single chip solution with only a few external

components

Stand-alone fixed-frequency user mode

Programmable multi-channel user mode

Low current consumption in active mode and

very low standby current

PLL-stabilized RF VCO (LO) with internal

varactor diode

Lock detect output in programmable

user mode

On-chip AFC for extended input frequency

acceptance range

General bi-directional half duplex digital data

RF signaling or analog signal communication

Tire Pressure Monitoring Systems (TPMS)

Remote Keyless Entry (RKE)

Low-power telemetry systems

Alarm and security systems

Wireless access control

Garage door openers

Remote controls

Networking solutions

Active RFID tags

Home and building automation

Temperature Code

E (-40 °C to 85 °C)

Page 1 of 44

Package Code

LQ (32 L QFN 5x5 Quad)

OUT_DEM

INT2/PDO

OUT_DTA

IN_DEM

VCC_IF

IN_IFA

RSSI

INT1

3wire bus serial control interface

FSK/ASK mode selection

FSK for digital data or FM for analog signal

reception

RSSI output for signal strength indication and

ASK reception

Peak detector for ASK detection

Switchable LNA gain for improved dynamic

range

Automatic PA turn-on after PLL lock

ASK modulation achieved by PA on/off keying

32-pin Quad Flat Lead Package (QFN)

TH71221

top

FSK/FM/ASK Transceiver

Pin Description

VEE_PLL

TNK_LO

VCC_PLL

FS1/LD

VEE_DIG

FS0/SDEN

TH71221

27 to 930MHz

Delivery Form

73 pc/tube

5000 pc/T&R

bottom

Data Sheet

June/08

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