MICRF113 データシートの表示（PDF） - Micrel
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MICRF113 Datasheet PDF : 21 Pages
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MICRF113
300MHz to 450MHz +10dBm
ASK Transmitter in SOT23
General Description
The MICRF113 is a high-performance, easy-to-use, single-
chip ASK Transmitter IC for remote wireless applications in
the 300MHz to 450MHz frequency band. This transmitter
IC is a true “data-in, antenna-out” monolithic device.
MICRF113 has three strong attributes: power delivery,
operating voltage and operating temperature. In terms of
power, the MICRF113 is capable of delivering +10dBm
into a 50Ω load. This power level enables a small form
factor transmitter (lossy antenna) such as a key fob
transmitter to operate near the maximum limit of
transmission regulations. In terms of operating voltage, the
MICRF113 operates from 1.8V to 3.6V. Many transmitter
ICs in the same frequency band stop operating below
2.0V. The MICRF113 will work with most batteries to the
end of their useful limits. In terms of operating
temperature, the MICRF113 operates from −40°C to
+85°C.
The MICRF113 is easy to use. It requires a reference
frequency (RF carrier frequency divided by 32 times)
generated from a crystal with a few additional external
parts to create a complete versatile transmitter.
The MICRF113 operates with Amplitude Shift Keying/On-
Off Keyed (ASK/OOK) UHF receiver types from wide-band
super-regenerative radios to narrow-band, high-
performance super-heterodyne receivers. The
MICRF113’s maximum ASK bit rate is 20kbps (minimum
pulse width of 50µs at ASK pin).
The MICRF113 transmitter solution is ideal for industrial
and consumer applications where simplicity and form
factor are important.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• Complete UHF ASK transmitter
• Frequency range 300MHz to 450MHz
• Bit rates up to 20kbps
• Output power up to 10dBm
• Low external part count
• Low voltage operation (down to 1.8V)
• Operate with crystals or ceramic resonators
• 6-pin SOT23
Applications
• Fan Controllers
• Remote Power Switches
• Multimedia Remote Control
• Remote Sensor Data Links
• Infrared Transmitter Replacement
Ordering Information
Part Number
MICRF113YM6
Temperature Range
−40°C to +85°C
Package
SOT23-6
QwikRadio is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
November 2010
M9999-112310
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