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TRF4400

Part Number	TRF4400
Manufacturer	Texas Instruments
Description	SINGLE-CHIP 433-MHz RF TRANSMITTER
Published	Dec 6, 2019
Detailed Description	TRF4400 SINGLE-CHIP 433-MHz RF TRANSMITTER D Single-Chip RF Transmitter for 433 MHz ISM Band D 420-MHz to 450-MHz Opera...
Datasheet	TRF4400 PDF File

Overview

TRF4400 SINGLE-CHIP 433-MHz RF TRANSMITTER D Single-Chip RF Transmitter for 433 MHz ISM Band D 420-MHz to 450-MHz Operation D FM/FSK Operation for Transmit D 24-Bit Direct Digital Synthesizer (DDS) With 11-Bit DAC D On-Chip Voltage-Controlled Oscillator (VCO) and Phase-Locked Loop (PLL) D On-Chip Reference Oscillator D Minimal External Components Required D Low Power Consumption D Typical Output Power of 7 dBm SLWS113C –NOVEMBER 2000 – REVISED SEPTEMBER 2001 D Typical Output Frequency Resolution of 230 Hz D Ultrafast Lock Times From DDS Implementation D Two Fully-Programmable Operational Modes D 2.
2-V to 3.
6-V Operation D Flexible Serial Interface to TI MSP430 Microcontroller D 24-Pin Plastic Thin-Shrink Small-Outline Package (TSSOP) PW PACKAGE (TOP VIEW) PD_OUT1 PLL_VCC PD_SET VCO_TANK1 VCO_TANK2 PLL_GND DIG_GND CLOCK DATA STROBE MODE STDBY 1 2 3 4 5 6 7 8 9 10 11 12 24 PD_OUT2 23 LOCKDET 22 PA_OUT 21 PA_GND 20 PA_VCC 19 GND 18 DIG_VCC 17 XOSC2 16 XOSC1 15 DIG_GND 14 TX_DATA 13 NC description The TRF4400 single-chip solution is an integrated circuit intended for use as a low cost FSK transmitter to establish a frequency-agile RF link.
The device is available in a 24-lead TSSOP package and is designed to provide a fully-functional multichannel transmitter.
The chip is intended for linear (FM) or digital (FSK) modulated applications in the 433-MHz ISM band.
The single-chip transmitter operates down to 2.
2 V and is expressly designed for low power consumption.
The synthesizer has a typical channel spacing of approximately 230 Hz to allow narrow-band as well as wide-band applications.
Due to the narrow channel spacing of the direct digital synthesizer (DDS), the DDS can be used to adjust the TX frequency and allows the use of inexpensive reference crystals.
Two fully-programmable operation modes, Mode0 and Mode1, allow extremely fast switching between two preprogrammed settings (e.
g.
, TX_frequency_0/TX_frequency_1) without reprogramming the device.
Each function...

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TRF4400 SINGLE-CHIP 433-MHz RF TRANSMITTER - Texas Instruments

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