MICRF103BM Micrel Inc, MICRF103BM Datasheet

MICRF103BM

Manufacturer Part Number

MICRF103BM

Description

IC ASK TRANSMITTER UHF 8SOIC

Manufacturer

Micrel Inc

Datasheet

1.MICRF103BM.pdf (7 pages)

Specifications of MICRF103BM

Frequency

800MHz ~ 1GHz

Applications

RKE

Modulation Or Protocol

ASK, OOK

Data Rate - Maximum

115 kbps

Power - Output

-3dBm

Current - Transmitting

19mA

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Voltage - Supply

4.75 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Transmitting Current

27.5mA

Data Rate

115Kbps

Frequency Range

800MHz To 1GHz

Modulation Type

ASK

Rf Ic Case Style

SOIC

No. Of Pins

Supply Voltage Range

4.75V To 5.5V

Operating Temperature (min)

-40C

Operating Temperature (max)

85C

Operating Temperature Classification

Industrial

Product Depth (mm)

3.94mm

Product Height (mm)

1.48mm

Operating Supply Voltage (min)

4.75V

Operating Supply Voltage (typ)

Operating Supply Voltage (max)

5.5V

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Features

Memory Size

Lead Free Status / Rohs Status

Not Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MICRF103BM

Manufacturer:

MICREL

Quantity:

1 228

Current page: 1 of 7
Download datasheet (43Kb)

General Description

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 accom-

plished 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-regenera-

tive radios to narrow-band, high performance super-hetero-

dyne 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.

Typical Application

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

June 2002

MICRF103

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

4.7 F

0.1 F

Note: Example for 868MHz

+5V

RP1

100k

RP2

6.8k

VDD

VSS

REFOSC

MICRF103

+5V

ANTM

ANTP

STBY

ASK

100k

100pF

8.2pF

Figure 1

Features

• 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 <1 A

Applications

• Remote keyless entry systems (RKE)

• Remote fan/light control

• Garage door opener transmitters

• Remote sensor data links

Ordering Information

Part Number

MICRF103BM

ASK DATA INPUT

1.0pF

10nH

27nH

QwikRadio™ UHF ASK Transmitter

27nH

1.0pF

Temperature Range

SAW Filter

MICRF103

–40 C to +85 C

Final

PCB Antenna

Monopole

8-Pin SOIC

Package

MICRF103

Micrel

Related parts for MICRF103BM

MICRF103BM Summary of contents

Page 1

... Low external part count • Low standby current <1 A Applications • Remote keyless entry systems (RKE) • Remote fan/light control • Garage door opener transmitters • Remote sensor data links Ordering Information Part Number MICRF103BM ASK DATA INPUT 1.0pF MICRF103 8.2pF PC ASK VDD ANTP ...

Page 2

... ANTM REFOSC 4 5 STBY MICRF103BM Pin Function Power Control Input. The voltage at this pin should be set between 0.1V to 0.4V for normal operation. Positive power supply input for the IC. This pin is the ground return for the IC. A power supply bypass capacitor connected from VDD to VSS should have the shortest possible path. ...

Page 3

MICRF103 Absolute Maximum Ratings Supply Voltage(V ) ..................................................... +6V DD Voltage on I/O Pins ............................. V Storage Temperature Range ................... - 150 C Lead Temperature (soldering, 10 seconds) ........... + 300 C ESD Rating, Note 3 Electrical ...

Page 4

MICRF103 Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series ...

Page 5

MICRF103 Typical Characteristics Mark Current vs. PC Voltage 0.1 0.2 0.3 0.4 0.5 0.6 0.7 V (V) PC June 2002 Output Power vs. PC Pin Voltage -10 ...

Page 6

MICRF103 Functional Diagram Reference STBY Bias VDD VDD PC Phase Detector (2) REF.OSC Reference Oscillator (1) Functional Description The block diagram illustrates the basic structure of the MICRF103. Identified in the figure are the principal functional blocks of the IC, ...

Page 7

MICRF103 Package Information 0.026 (0.65) 0.154 (3.90) 0.057 (1.45) 0.049 (1.25) MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information is believed to be accurate and reliable, however no responsibility is assumed ...

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