315-915 MHz ISM Band RF Transmitter

Product is Not Recommended for New Design (NRND)

Replaced By:

CC1150 The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.

Datasheet

Single-Chip Multiband RF Transmitter (Rev. B) (trf4903.pdf, 551 KB)
03 Mar 2005 Download

Product Information

Features

Single-Chip RF Transmitter for 315-MHz, 433-MHz, 868-MHz, and 915-MHz Industrial, Scientific, and Medical (ISM) Bands
2.2-V to 3.6-V Operation
Low Power Consumption
FSK/OOK Operation
Integer-N Synthesizer With Fully Integrated Voltage Controlled Oscillator (VCO)
On-Chip Reference Oscillator and Phase-Locked Loop (PLL)
Power Amplifier With 8-dBm Typical Output Power
Programmable Brownout Detector
Integrated Data Bit Synchronizer and Baud Rate Selection
Flexible 3-Wire Serial Interface
Minimal Number of External Components Required
24-Pin Plastic Thin-Shrink Small Outline Package (TSSOP)
Programmable XTAL Trimming
Lock Detect Indicator
Companion Transmitter to the TRF6903 Transceiver

Description

The TRF4903 single-chip solution is an integrated circuit intended for use as a low-cost multiband FSK or OOK transmitter to establish a frequency-programmable, half-duplex, bidirectional RF link. The multichannel transmitter is intended for digital (FSK, OOK) modulated applications in the North American and European 315-MHz, 433-MHz, 868-MHz, and 915-MHz ISM bands. The single-chip operates down to 2.2 V and is designed for low power consumption. The synthesizer has a typical channel spacing of better than 200 kHz and features a fully-integrated VCO. Only the PLL loop filter is external to the device.

Two fully-programmable operation modes, Mode0 and Mode1, allow extremely fast switching between two preprogrammed settings (for example, TX_frequency_0/TX_frequency_1; …) without reprogramming the device.

Pricing / Packaging / CAD Design Tools / Samples

			Price ($US)	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price ($US) \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TRF4903PW	NRND	-40 to 85	2.00 \| 100u	TSSOP (PW) \| 24	View	60 \| TUBE	Not Available
TRF4903PWG4	NRND	-40 to 85	2.00 \| 100u	TSSOP (PW) \| 24	View	60 \| TUBE	Not Available
TRF4903PWR	NRND	-40 to 85	2.00 \| 100u	TSSOP (PW) \| 24	View	2000 \| LARGE T&R	Not Available
TRF4903PWRG4	NRND	-40 to 85	2.00 \| 100u	TSSOP (PW) \| 24	View	2000 \| LARGE T&R	Not Available

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
TRF4903PW	As of 7:43 AM GMT, 21 Aug 2008			As of 7:43 AM GMT, 21 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
TRF4903PWG4	As of 7:43 AM GMT, 21 Aug 2008			As of 7:43 AM GMT, 21 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
TRF4903PWR	As of 7:43 AM GMT, 21 Aug 2008			As of 7:43 AM GMT, 21 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
TRF4903PWRG4	As of 7:43 AM GMT, 21 Aug 2008			As of 7:43 AM GMT, 21 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TRF4903PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TRF4903PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TRF4903PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TRF4903PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

Single-Chip Multiband RF Transmitter (Rev. B) (trf4903.pdf, 551 KB)
03 Mar 2005 Download

Application Notes

ISM-Band and Short Range Device Regulatory Compliance Overview (swra048.htm, 8 KB)
08 Jun 2005 Abstract
Operating the TRF4903 w/MSP430 Evaluation Kit in the 868 MHz European ISM Band (swra047.htm, 8 KB)
22 Mar 2005 Abstract

View Application Notes for Sub 1-GHz

User Guides

TRF4903 w/MSP430 Demonstration & Development Evaluation Kit UG (Rev. A) (swru010a.pdf, 1333 KB)
03 May 2005 Download
TRF4903 Design Guide (swru011.pdf, 455 KB)
02 Mar 2005 Download

More Literature

RF Transceiver & Transmitter Support 315, 433, 868 and 915 MHz Operation (slyt059.pdf, 168 KB)
19 May 2004 Download

Reference Designs

Description	Part #	Company
TRF4903 Reference Design for FSK and OOK for 315, 433, 868 and 915 MHz bands	TRF4903RD	Texas Instruments
TRF4903 Reference Design with optional LC low-pass filter for FSK and OOK for 315, 433, 868 and 915	TRF4903RD-LC-FILTER	Texas Instruments

Tools & Software

Name	Part #	Company	Tool / Software Type
RF Transceiver Power Consumption Calculator	RF-POWERCALC	Texas Instruments	Calculation Utilities
TRF4903 with MSP430 Demonstration and Development Evaluation Kit	MSP-TRF4903-DEMO	Texas Instruments	Development Boards/EVMs

Support and Community

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TRF4903 Status:NRND