Datasheet > TH72002

TH72002

更新时间： 2024-11-11 03:27:51

品牌	Logo	应用领域
迈来芯 - MELEXIS		/
页数	文件大小	规格书
20页	506K
描述
ASK Transmitter

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中文翻译

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数据手册

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TH72002 数据手册

TH72002

315MHz

ASK Transmitter

Features

! Fully integrated PLL-stabilized VCO

! Frequency range from 290 MHz to 350 MHz

! Single-ended RF output

! High over-all frequency accuracy

! Adjustable output power range from

-12 dBm to +11 dBm

! ASK achieved by on/off keying of internal

power amplifier up to 40 kbit/s

! Adjustable current consumption from

3.2 mA to 10.3 mA

! Wide power supply range from 1.95 V to 5.5 V

! Very low standby current

! Conforms to FCC part 15 and similar standards

! 8-pin Small Outline Integrated Circuit (SOIC)

! On-chip low voltage detector

Ordering Information

Part Number

Temperature Code

Package Code

Delivery Form

98 pc/tube

2500 pc/T&R

TH72002

K (-40°C to 125°C)

DC (SOIC8)

Application Examples

Pin Description

! General digital data transmission

! Tire Pressure Monitoring Systems (TPMS)

! Remote Keyless Entry (RKE)

! Wireless access control

! Alarm and security systems

! Garage door openers

VEE

ASKDTA

n. c.

ROI

OUT

VCC

PSEL

TH72002

ENTX

! Remote Controls

! Home and building automation

! Low-power telemetry systems

General Description

The TH72002 ASK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical

(ISM) band. It can also be used for any other system with carrier frequencies ranging from

290 MHz to 350 MHz.

The transmitter's carrier frequency f_cis determined by the frequency of the reference crystal f_ref. The inte-

grated PLL synthesizer ensures that carrier frequencies, ranging from 290 MHz to 350 MHz, can be

achieved. This is done by using a crystal with a reference frequency according to: f_ref= f_c/N, where N = 32 is

the PLL feedback divider ratio.

3901072002

Rev. 007

Page 1 of 20

Data Sheet

June/07

12 3 4 5 6 7...20

中文翻译

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