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Description
MAXIM INTEGRATED PRODUCTS MAX1473EUI+ IF RECEIVER, 300MHZ-450MHZ, TSSOP-28The MAX1473EUI+ is a 315MHz 433MHz ASK superheterodyne receiver with extended dynamic range in 28 pin TSSOP package. This fully integrated low power CMOS receiver is ideal for receiving amplitude shift keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from 114dBm to 0dBm. With few external components and a low current power down mode it is ideal for cost and power sensitive applications typical in automotive and consumer
The MAX1473EUI+ is a 315MHz/433MHz ASK superheterodyne receiver with extended dynamic range in 28 pin TSSOP package. This fully integrated low power CMOS receiver is ideal for receiving amplitude shift-keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from -114dBm to 0dBm. With few external components and a low current power down mode it is ideal for cost and power sensitive applications typical in automotive and consumer markets. The chip consists of a low noise amplifier LNA , a fully differential image rejection mixer, an on-chip phase locked loop with integrated voltage controlled oscillator, a 10.7MHz IF limiting amplifier stage with received signal strength indicator and analogue baseband data recovery circuitry. It also has a discrete one step automatic gain control that drops the LNA gain by 35dB when the RF input signal is greater than -57dBm. It is used in automotive remote keyless entry, garage door openers, remote controls & home automation.
- Operates from single 3.3V or 5.0V supplies
- Operating temperature range from -40°C to 85°C
- Receiver input frequency range from 300MHz to 450MHz
- High dynamic range with on-chip AGC, selectable image rejection centre frequency
- Selectable x64 or x32 fLO/fXTAL ratio
- Low 5.2mA operating supply current
- Low current power down mode for efficient power cycling < 2.5µA
- 250µs start-up time, built-in 50dB RF image rejection
- Receive sensitivity of -114dBm
Applications
Building Automation, Automation & Process Control, Communications & Networking, Wireless, Security
- :
- -40°C
- :
- -
- :
- 85°C
- :
- ASK
- :
- 28Pins
- :
- -114dBm
- :
- -
- :
- -
- :
- 450MHz
- :
- 4.5V
- :
- TSSOP
- :
- Each
- :
- 300MHz
- :
- 5.5V
- :
- Home Automation, Remote Control & Sensing, Remote Keyless Entry, Security Systems, Smoke Alarms
- :
- 100Kbps
- :
- MSL 1 - Unlimited
Product details
| Operating Temperature Min | -40°C |
| Receiving Current | - |
| Operating Temperature Max | 85°C |
| RF / IF Modulation | ASK |
| No. of Pins | 28Pins |
| Sensitivity dBm | -114dBm |
| Product Range | - |
| Automotive Qualification Standard | - |
| Frequency Max | 450MHz |
| Supply Voltage Min | 4.5V |
| RF IC Case Style | TSSOP |
| Packaging | Each |
| Frequency Min | 300MHz |
| Supply Voltage Max | 5.5V |
| RF Receiver Applications | Home Automation, Remote Control & Sensing, Remote Keyless Entry, Security Systems, Smoke Alarms |
| Data Rate | 100Kbps |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | MAXIM INTEGRATED PRODUCTS |
| Part Number | MAX1473EUI+ |
| Quantity | Each |
| Technical Data Sheet EN | |
| Application Note EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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Exchange/Return Notes
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4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
It's pretty
Size: 51mm
I've never had a tamper, I don't know what I'm doing. But it seems to work just fine and I like the wood.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Nice Upgrade
Size: 58mm
Its a really nice upgrade to my setup. Feels well made and solid build.
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Reviewed in the United States on January 28, 2026
★★★★★ 4
nice built, simple one-spring design.
Size: 58mm
solid precision built. weight shy of 17oz (478g), aesthetically pleasing. the plunge operation quite smooth. took one star off per its one spring design, you tamp with whatever weight you put on it.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Good quality. Proper functional use.
Size: 58mm
It's all about the details.
Functional and sleek design. I enjoy the satisfying click when applying the tamping process. The ease of use and not having to worry about uneven pressure being applied in the portafilter is why I purchased this. It gets the job done.
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Great weight and super easy to use
Size: 53mm, Size: 53mm
I’m really happy with this tamper. It has a nice, heavy feel that makes it seem really well made, and the weight actually helps get an even press without much effort. It’s very smooth and easy to push, and it fits my 53.3mm basket perfectly. Definitely glad I bought it!
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Reviewed in the United States on November 20, 2025