MAX7060EVKIT+【PDF 1/31 页】EVAL KIT MAX7060

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EVALUATION KIT AVAILABLE

MAX7060

280MHz to 450MHz Programmable

ASK/FSK Transmitter

General Description

The MAX7060 frequency and power-programmable

ASK/FSK transmitter operates at 280MHz to 450MHz

frequencies. This device incorporates a fully integrated

fractional-N synthesizer, which allows the user to set the

RF operating frequency to a large fraction of the 280MHz

to 450MHz frequency range with a single crystal. For

example, the MAX7060 can be tuned from 285MHz to

420MHz with a 15MHz crystal. The RF output power is

user-controlled between +14dBm and -14dBm, with a

5V supply or with battery voltages as low as 3.2V. At the

minimum specified battery voltage of 2.1V, the RF output

power-control range is between +10dBm and -14dBm.

To maintain a good output power match across a broad

range of frequencies, the MAX7060 also contains a pro-

grammable matching capacitor connected in parallel

with the power amplifier (PA) output.

ASK modulation is accomplished by switching the PA

on and off, so excellent modulation (on/off) ratios are

achieved. ASK amplitude shaping is available to reduce

the width of the transmission spectrum. FSK modula-

tion is accomplished by changing the coefficients of

the high-resolution fractional-N synthesizer, so FSK

deviation is extremely accurate. Data rates up to 50kbps

Manchester coded for ASK and 70kbps Manchester

coded for FSK can be maintained while still satisfying

regulatory emission-bandwidth standards. The full set of

configuration functions are handled by an on-chip serial

peripheral interface (SPI). There is also a manual mode

where a limited number of settings can be made directly

through selected pins.

The startup time is very short, and data can be transmit-

ted 250 F s after the enable command. The MAX7060

operates from a 2.1V to 3.6V supply, or internal regula-

tors can be used for supply voltages between 4.5V and

5.5V. The standby current in the 3V mode is 400nA at

room temperature, and can be reduced to 5nA using the

Features

S Fully Integrated, Fast Fractional-N PLL

280MHz to 450MHz RF Frequency

Frequency Range 100% Tested at +125 N C

< 250μs Startup Time

Adjustable FSK Mark and Space Frequencies

Ultra-Clean FSK Modulation

50kbps Manchester Data Rate ASK

70kbps Manchester Data Rate FSK

S Programmable Power Amplifier

+14dBm Tx Power with 5V Supply

+10dBm Tx Power at 2.1V Supply

28dB Power-Control Range in 1dB Steps

S Tunable PA Matching Capacitor

S Control Through SPI or Manual Settings

S Low Shutdown Current for 2.1V to 3.6V Supply

400nA Standby Current, Power-On-Reset

(POR) Active

5nA Shutdown Current, POR Inactive

S Supply Flexibility

2.1V to 3.6V Single-Supply Operation or

4.5V to 5.5V Supply Operation with Internal

Regulators

S 24-Pin (4mm x 4mm) TQFN Package

S FCC Part 15, ETSI EN 300 220 Compliant*

* ETSI compliance up to +6dBm EIRP.

Applications

Garage-Door Openers

Remote Controls

Home and Industrial Automation

Sensor Networks

Security Systems

low-power shutdown (LSHDN) pin.

The MAX7060 is available in a 24-pin (4mm x 4mm) thin

QFN package and is specified for the automotive tem-

PART

Ordering Information

TEMP RANGE PIN-PACKAGE

perature range from -40 N C to +125 N C.

MAX7060ATG+

MAX7060ATG/V+

-40 N C to +125 N C

24 TQFN-EP*

+ Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

* EP = Exposed pad.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-5096; Rev 1; 3/12

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