CMX017 데이터 시트보기 (PDF) - Unspecified

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CMX017

UHF FM/FSK Transmitter

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DATA BULLETIN

CMX017 UHF FM/FSK Transmitter

ADVANCE INFORMATION

Features

• Direct FM/FSK UHF Modulator

• Adjustable Modulator Output Power

• Integrated Power Amplifier with Output

Power up to +20dBm (100mW)

• Low Power 2.7V Operation

• Powersave and Zero-Power

(<10µA) Modes

• 28-Pin SSOP Package

Applications

• General Radio Link 860-965MHz

• General 915MHz ISM Band (USA)

• Spread Spectrum Wireless

Systems

• Fixed Frequency Transmissions

• Analog/Digital Cordless Phones

• Handheld Data Terminals

• SO-HO Wireless Data Links

GAIN

MODOUT

PAIN

IPAOUT

MODIN

FM/FSK

MODULATOR

POWER

AMPLIFIER

DRIVER

TANK

BUFFERED

OSCILLATOR

OUTPUT

POWER

AMPLIFIER

BANDGAP & BIAS

CONTROL

PAOUT

OSCOUT

ENLMOD ENLPA

The CMX017 is a single chip UHF FM/FSK transmitter that combines both the RF VCO Modulator and RF

Power Amplifier. It is suitable for both audio FM and digital FSK transmissions.

A buffered oscillator output provides the RF signal drive to an external synthesizer or fixed frequency phase-

locked loop for channel frequency selection. Modulator output power is adjustable over a 20dB range and the

integrated power amplifier delivers up to +20dBm. The device also includes a powersave mode: “Transmit

Standby” and a zero-power mode: “Sleep”. These allow independent power down control of both the

modulator and power amplifier, thereby maximizing battery life. The device can be used in conjunction with

the CMX018, a double-conversion super-heterodyne receiver, to implement a complete UHF radio link.

The CMX017 operates from a 2.7V to 3.3V power supply and is available in the following package style:

28-pin SSOP (CMX017D6).

©1999 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 20480193.003

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by their respective companies

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