MICRF103BM

MICRF103BM Datasheet

MICRF103

Part	Datasheet
MICRF103BM	MICRF103BM (pdf)

Related Parts	Information
MICRF103BM TR	MICRF103BM TR

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MICRF103 Micrel MICRF103 QwikRadio UHF ASK Transmitter Final The MICRF103 is a single chip Transmitter IC for remote wireless applications. The device employs Micrel’s latest QwikRadio technology. This device is a true ”data-in, antenna-out” monolithic device. All antenna tuning is accomplished automatically within the IC which eliminates manual tuning, and reduces production costs. The result is a highly reliable yet extremely low cost solution for high volume wireless applications. Because the MICRF103 is a true single-chip radio transmitter, it is easy to apply, minimizing design and production costs, and improving time to market. The MICRF103 uses a novel architecture where the external antenna is tuned by the internal UHF synthesizer. This transmitter is designed to comply worldwide UHF unlicensed band international radio regulations. The IC is compatible with virtually all ASK/OOK Amplitude Shift Keying/On-Off Keyed UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers. The transmitter is designed to work with transmitter data rates up to 115k bits per second. The automatic tuning in conjunction with an external resistor, insures that the transmitter output power stays constant at maximum regulatory transmit power limits for the life of the battery. When coupled with Micrel’s family of QwikRadio receivers, the MICRF103 provides the lowest cost and most reliable remote actuator and RF link system available. • Complete UHF transmitter on a monolithic chip • Frequency range 800MHz to 1GHz • Data rates to 115kbps • Automatic antenna alignment, no manual adjustment • Low external part count • Low standby current <1µA • Remote keyless entry systems RKE • Remote fan/light control • Garage door opener transmitters • Remote sensor data links Ordering Information Part Number MICRF103BM Temperature Range to +85°C Package 8-Pin SOIC 4.7µF 0.1µF RP1 100k RP2 6.8k MICRF103 PC VDD ASK ANTP ANTM REFOSC STBY Note Example for 868MHz ASK DATA INPUT 8.2pF 1.0pF 27nH 100pF 10nH 1.0pF 100k 27nH Figure 1 SAW Filter Monopole PCB Antenna QwikRadio is a trademark of Micrel, Inc. The QwikRadio ICs were developed under a partnership agreement with AIT of Orlando, Florida. Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 408 944-0800 • fax + 1 408 944-0970 • June 2002 MICRF103 MICRF103 Pin Configuration PC 1 VDD 2 VSS 3 REFOSC 4 8 ASK 7 ANTP 6 ANTM 5 STBY MICRF103BM Micrel Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name PC VDD VSS REFOSC STBY ANTM ANTP ASK Pin Function Power Control Input. The voltage at this pin should be set between 0.1V to 0.4V for normal operation.

PDF Datasheet Preview

MICRF103

Micrel

MICRF103

QwikRadio UHF ASK Transmitter Final

The MICRF103 is a single chip Transmitter IC for remote wireless applications. The device employs Micrel’s latest QwikRadio technology. This device is a true ”data-in, antenna-out” monolithic device. All antenna tuning is accomplished automatically within the IC which eliminates manual tuning, and reduces production costs. The result is a highly reliable yet extremely low cost solution for high volume wireless applications. Because the MICRF103 is a true single-chip radio transmitter, it is easy to apply, minimizing design and production costs, and improving time to market.

The MICRF103 uses a novel architecture where the external antenna is tuned by the internal UHF synthesizer. This transmitter is designed to comply worldwide UHF unlicensed band international radio regulations. The IC is compatible with virtually all ASK/OOK Amplitude Shift Keying/On-Off Keyed UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers. The transmitter is designed to work with transmitter data rates up to 115k bits per second.

The automatic tuning in conjunction with an external resistor, insures that the transmitter output power stays constant at maximum regulatory transmit power limits for the life of the battery.

When coupled with Micrel’s family of QwikRadio receivers, the MICRF103 provides the lowest cost and most reliable remote actuator and RF link system available.
• Complete UHF transmitter on a monolithic chip
• Frequency range 800MHz to 1GHz
• Data rates to 115kbps
• Automatic antenna alignment, no manual adjustment
• Low external part count
• Low standby current <1µA
• Remote keyless entry systems RKE
• Remote fan/light control
• Garage door opener transmitters
• Remote sensor data links
Ordering Information

Part Number MICRF103BM

Temperature Range to +85°C

Package 8-Pin SOIC
4.7µF 0.1µF

RP1 100k

RP2 6.8k

MICRF103

PC VDD

ASK ANTP

ANTM

REFOSC STBY

Note Example for 868MHz

ASK DATA INPUT
8.2pF
1.0pF 27nH
100pF
10nH 1.0pF
100k
27nH

Figure 1

SAW Filter

Monopole PCB Antenna

QwikRadio is a trademark of Micrel, Inc. The QwikRadio ICs were developed under a partnership agreement with AIT of Orlando, Florida.

Micrel, Inc.
• 1849 Fortune Drive
• San Jose, CA 95131
• USA
• tel + 1 408 944-0800
• fax + 1 408 944-0970
•

June 2002

MICRF103

MICRF103

Pin Configuration

PC 1 VDD 2 VSS 3 REFOSC 4
8 ASK 7 ANTP 6 ANTM 5 STBY

MICRF103BM

Micrel

Pin Description

Pin Number 1 2 3 4
5 6 7 8

Pin Name PC VDD VSS

REFOSC

STBY ANTM ANTP ASK

Pin Function

Power Control Input. The voltage at this pin should be set between 0.1V to 0.4V for normal operation.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MICRF103BM Datasheet file may be downloaded here without warranties.

Datasheet ID: MICRF103BM 647910