MAX7044AKA+T by Analog Devices

300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter


The MAX7044 crystal-referenced phase-locked-loop (PLL) VHF/UHF transmitter is designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX7044 supports data rates up to 100kbps, and provides output power up to +13dBm into a 50Ω load while only drawing 7.7mA at 2.7V. The crystal-based architecture of the MAX7044 eliminates many of the common problems with SAW-based transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. The MAX7044 also features a low supply voltage of +2.1V to +3.6V. These improvements enable better overall receiver performance when using the MAX7044 together with a superheterodyne receiver such as the MAX1470 or MAX1473. A simple, single-input data interface and a buffered clock-out signal at 1/16th the crystal frequency make the MAX7044 compatible with almost any microcontroller or code-hopping generator. The MAX7044 is available in an 8-pin SOT23 package and is specified over the -40°C to +125°C automotive temperature range.

Where to Buy

Prices starting from US$2.44

Distributor Stock
Logo for Farnell
Farnell
from US$2.44
485
in stock
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Logo for Analog Devices
Analog Devices
from US$2.66
1,475
in stock
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Logo for element14
element14
from US$2.78
485
in stock
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Logo for Newark Electronics
Newark Electronics
from US$2.52
-
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Features

+2.1V to +3.6V Single-Supply Operation
OOK/ASK Transmit Data Format
Up to 100kbps Data Rate
+13dBm Output Power into 50Ω Load
Low 7.7mA (typ) Operating Supply Current*
Uses Small, Low-Cost Crystal
Small 3mm x 3mm 8-Pin SOT23 Package
Fast-On Oscillator: 250µs Startup Time

Specifications

Band/ Freq. (MHz) 300 to 450
Tx Output Power (dBm) (max) 12.5
Modulation Mode ASKOOK
VSUPPLY (V) 2.1 to 3.6
Package/Pins SOT23/8
BudgetaryPrice (See Notes) 1.62


MAX7044AKA+T Semiconductors - ICs by Analog Devices

RF TRANSMITTER 300-450MHZ SOT-23-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Frequency Min 300MHz
Frequency Max 450MHz
RF / IF Modulation ASK OOK
Data Rate 100Kbps
Transmitting Current 14mA
RF IC Case Style SOT-23
No. of Pins 8Pins
Supply Voltage Min 2.1V
Supply Voltage Max 3.6V
Output Power (dBm) 12.5dBm
Sensitivity dBm -
RF Transmitter Applications Remote Keyless Entry Systems (RKE) Tire Pressure Monitoring Systems (TPMS)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

300MHz to 450MHz High-Efficien | Analog Devices
RF TRANSMITTER, 300-450MHZ, SOT-23-8 | element14
Rf Transmitter, 300-450Mhz, Sot-23-8 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX7044AKA+T ?

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Is the MAX7044AKA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX7044AKA+T have stock available?

Authorised distributors including Analog Devices, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX7044AKA+T .

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