RF2945 RF Micro Devices, RF2945 Datasheet

RF2945

Manufacturer Part Number

RF2945

Description

433/868/915MHZ FSK/ASK/OOK TRANSCEIVER

Manufacturer

RF Micro Devices

Datasheet

1.RF2945.pdf (24 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

RF2945

Manufacturer:

RFMD

Quantity:

15 480

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Euro Chip Distribution

Part Number:

RF2945

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Product Description

The RF2945 is a monolithic integrated circuit intended for

use as a low cost FM transceiver. The device is provided

in 32-lead plastic LQFP packaging and is designed to be

used with a PLL IC to provide a fully functional FM trans-

ceiver. The chip is intended for digital (ASK, FSK, OOK)

applications in the North American 915MHz ISM band

and European 433/868MHz ISM bands. The integrated

VCO has a buffered output to feed the RF signal back to

the PLL IC to form the frequency synthesizer. Internal

decoding of the RX ENABL and TX ENABL lines allow for

half duplex operation as well as turning on the VCO to

give the synthesizer time to settle and complete power

downmode. The DATA REF line allows the use of an

external capacitor to control the DC level at the adaptive

Data Slicer input for setting the bit decision threshold.

Optimum Technology Matching® Applied

Rev A10 000919

Typical Applicat ions

• Wireless Meter Reading

• Keyless Entry Systems

• 433, 868 and 915MHz ISM Band Systems

Si BJT

Si Bi-CMOS

TX ENABL

LNA OUT

TX OUT

MIX IN

GND2

RX IN

GND1

GND3

Funct ional Block Diagram

Control

Logic

LNA

Control

Gain

GaAs HBT

SiGe HBT

Linear

RSSI

GaAs MESFET

Si CMOS

24 RESNTR-

23 MOD IN

22 DATA REF

21 DEMOD IN

20 GND6

19 IF2 BP-

18 IF2 BP+

17 IF2 IN

433/868/915MHZ FSK/ASK/OOK TRANSCEIVER

• Wireless Data Transceiver

• Wireless Security Systems

• Battery-Powered Portable Devices

Feat ures

Ordering Infor mat ion

RF Micro Devices, Inc.

7628 Thorndike Road

Greensboro, NC 27409, USA

• Fully Monolithic Integrated Transceiver

• 2.4V to 5.0V Supply Voltage

• Narrowband and Wideband FSK

• 300MHz to 1000MHz Frequency Range

• 10dB Cascaded Noise Figure

• 10mW Output Power With Power Control

RF2945

RF2945 PCBA-L Fully Assembled Evaluation Board (433MHZ)

RF2945 PCBA-M Fully Assembled Evaluation Board (868MHZ)

RF2945 PCBA-H Fully Assembled Evaluation Board (915MHz)

xxx

Package St yle: LQFP-32_5x 5

+ 0.20 sq.

+ 0.10 sq.

7° MAX

0° MIN

7.00

5.00

433/868/915MHz FSK/ASK/OOK Transceiver

0.60

+ 0.15

+ 0.05

0.22

0.10

+ 0.05

1.40

0.127

0.15

0.05

Dimensions in mm.

RF2945

-A-

http://www.rfmd.com

Fax (336) 664 0454

Tel (336) 664 1233

0.50

11-215

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