RF/IF Receivers Eye Short Range, Low Power Applications

Sept. 30, 2003
A pair of RF/IF receivers operates at frequencies from 240 MHz to 450 MHz and promise high sensitivity with low power consumption. For AM/FM radio, the TA31275FN operates from 100 MHz to 450 MHz without multiplication, while the AM-only TA31273FN

A pair of RF/IF receivers operates at frequencies from 240 MHz to 450 MHz and promise high sensitivity with low power consumption. For AM/FM radio, the TA31275FN operates from 100 MHz to 450 MHz without multiplication, while the AM-only TA31273FN operates from 240 MHz to 450 MHz using multiplication. Both devices provide a mixer frequency from 240 MHz to 450 MHz, an IF mixer frequency of 10.7 MHz, and consume 0 to 5 µA typical in standby mode. They each integrate a RF amplifier, two-level comparator, and a local x8 circuit. Operating voltages are 3V to 5.5V for the TA31273FN and 2.4V to 5.5V for the TA31275FN. In operation, the TA31273FN consumes 6.8 mA when the local oscillator is idle. During frequency-shift-keying (FSK) using the x8 multiple circuit, the TA31275FN consumes 5.8 mA and 3.4 mA sans the x8 multiple circuit. Performing amplitude-shift-keying (ASK) with the x8 multiple circuit, power consumption is 5.4 mA and 3 mA without the x8 multiple circuit. The TA31273FN and TA31275FN are available in 20-pin and 24-pin SSOPs, respectively, with a 0.65-mm pitch. Price is $0.99 each/10,000. TOSHIBA AMERICA ELECTRONIC COMPONENTS INC., San Jose, CA. (408) 526-2400.

Company: TOSHIBA AMERICA ELECTRONIC COMPONENTS INC.

Product URL: Click here for more information

Sponsored Recommendations

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

How to Quickly Leverage Bluetooth AoA and AoD for Indoor Logistics Tracking

March 27, 2024
Real-time asset tracking is an important aspect of Industry 4.0. Various technologies are available for deploying Real-Time Location.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!