MICRF102BM TR Micrel Inc, MICRF102BM TR Datasheet

MICRF102BM TR

Manufacturer Part Number

MICRF102BM TR

Description

Manufacturer

Micrel Inc

Datasheet

1.MICRF102BM_TR.pdf (12 pages)

Specifications of MICRF102BM TR

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

Not Compliant

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Ordering Information

General Description

The MICRF102 is a single chip Transmitter IC for remote

wireless applications. The device employs Micrel’s latest Qwi-

kRadio™ 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 MICRF102 is a true single-chip

radio transmitter, it is easy to apply, minimizing design and

production costs, and improving time to market.

The MICRF102 uses a novel architecture where the external

loop antenna is tuned to the internal output stage. This trans-

mitter is designed to comply with worldwide UHF unlicensed

band intentional radiator 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 receiv-

ers. The transmitter is designed to work with transmitter data

rates from 100 to 20k bits per second.

The automatic tuning, in conjunction with the external resistor,

ensures that the transmitter output power stays constant for

the life of the battery.

When used with Micrel’s family of QwikRadio™ receivers,

the MICRF102 provides the lowest cost and most reliable

remote actuator and RF link system available.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Typical Application

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

December 2006

Part Number

Standard

MICRF102BM

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Pb-Free

MICRF102YM

4.7µF

0.1µF

+5V

RP1

100k

RP2

6.8k

VDD

VSS

REFOSC

-40°C to +85°C

MICRF102

Temperature

Range

+5V

ANTN

ANTP

STBY

ASK

100k

Features

• Complete UHF transmitter on a monolithic chip

• Frequency range 300MHz to 470MHz

• Data rates to 20kbps

• Automatic antenna alignment, no manual adjustment

• Low external part count

• Low standby current <0.04µA

Applications

• Remote Keyless Entry systems (RKE)

• Remote fan/light control

• Garage door opener transmitters

• Remote sensor data links

• Tire Pressure Monitoring System (TPMS)

• Telemetry

8-Pin SOIC

Package

ASK DATA INPUT

QwikRadio™ UHF ASK Transmitter

12pF 50V

(2.7pF 50V)

8.2pF 50V

(4.7pF 50V)

MICRF102

PCB Antenna

QwikRadio™

MICRF102

Related parts for MICRF102BM TR

MICRF102BM TR Summary of contents

Page 1

General Description The MICRF102 is a single chip Transmitter IC for remote wireless applications. The device employs Micrel’s latest Qwi- kRadio™ technology. This device is a true “data-in, antenna- out” monolithic device. All antenna tuning is accomplished automatically within the ...

Page 2

Pin Conﬁ guration Pin Description Pin Number Pin Name 1 2 VDD 3 VSS 4 REFOSC 5 STBY 6 ANTN 7 ANTP 8 ASK MICRF102 PC 1 VDD 2 VSS 3 REFOSC 4 8-Pin SOIC (M) Pin Function PC Power ...

Page 3

Absolute Maximum Ratings Supply Voltage(V ) ...................................................... +6V DD Voltage on I/O Pins ...............................V Storage Temperature Range ................... –65° 150°C Lead Temperature (soldering, 10 seconds) ............ + 300°C ESD Rating ............................................................... Note 3 Electrical Characteristics Speciﬁ cations apply ...

Page 4

Parameter Condition Digital / Control Section Calibration Time Note 9, ASK data rate 20kbps Power Ampliﬁ er Output Hold Off Note 10, STDBY transition from LOW to HIGH Time from STBY Crystal, ESR < 20Ω Transmitter Stabilization Time From External ...

Page 5

Typical Characteristics Output Power vs. PC Pin Voltage -10 -15 -20 -25 -30 -35 0 100 200 300 400 500 600 V (mV Output Callibration Time Figure 2. RF Out CAL Time Example (45ms) Ch ...

Page 6

Block 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 MICRF102. Identiﬁ the ﬁ gure are the principal functional blocks of the ...

Page 7

Applications Information Design Process The MICRF102 transmitter design process is as follows: 1) Set the transmit frequency by providing the cor- rect reference oscillator frequency. 2) Ensure antenna resonance at the transmit fre- quency by: = 0.2 × Length × ...

Page 8

MICRF102 output stage varactor. Using the equation π π the inductance of the antenna cannot be set at the nominal value determined ...

Page 9

Design Examples Complete reference designs including gerber ﬁ les can be downloaded from Micrel’s website at: www.micrel.com/prod- uct-info/qwikradio.shtml. Antenna Characteristics In this design, the desired loop inductance value is determined according to the table below. Freq Ind (MHz) ...

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MICRF102BM TR Micrel Inc, MICRF102BM TR Datasheet

MICRF102BM TR

Specifications of MICRF102BM TR

Related parts for MICRF102BM TR

MICRF102BM TR Summary of contents

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