CMX017D6 MX-COM, Inc., CMX017D6 Datasheet

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CMX017D6

Manufacturer Part Number
CMX017D6
Description
UHF FM/FSK transmitter
Manufacturer
MX-COM, Inc.
Datasheet
Features
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).
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
1999 MX-COM, Inc.
Direct FM/FSK UHF Modulator
Adjustable Modulator Output Power
Integrated Power Amplifier with Output
Low Power 2.7V Operation
Powersave and Zero-Power
(<10 A) Modes
28-Pin SSOP Package
Power up to +20dBm (100mW)
MODIN
TANK
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
MODULATOR
FM/FSK
DATA BULLETIN
CMX017
OSCOUT
AMPLIFIER
DRIVER
POWER
OSCILLATOR
BUFFERED
OUTPUT
GAIN
All trademarks and service marks are held by their respective companies
ENLMOD
MODOUT
BANDGAP & BIAS
CONTROL
Applications
UHF FM/FSK Transmitter
ENLPA
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
PAIN
AMPLIFIER
POWER
IPAOUT
ADVANCE INFORMATION
PAOUT
Doc. # 20480193.003

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CMX017D6 Summary of contents

Page 1

... 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 ...

Page 2

... Operating Characteristics..................................................................................................... 10 6.1.4 Packaging............................................................................................................................. 12 MX-COM, Inc reserves the right to change specifications at any time and without notice. 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 2 CONTENTS All trademarks and service marks are held by their respective companies ...

Page 3

... ENLPA 13 PACKAGE GROUND GND 14 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 3 PA DRIVER PA STAGE 1 PA MODULATOR Figure 1: Internal Block Diagram All trademarks and service marks are held by their respective companies ...

Page 4

... MODOUT output 27 GND ground 28 PAIN 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 4 Type Power amplifier (first stage) power supply - nominally 3.0V input Modulator output (pin 26) - Power control ...

Page 5

... CC3 1 28 GAIN GND 2 27 GND MODOUT 3 26 GND GND 4 25 GND V CC2 5 24 IPAOUT OSCOUT 6 23 GND V CC1 7 22 CMX017D6 GND GND 8 21 PAOUT TANK 9 20 GND GND 10 19 GND MODIN GND CC4 12 17 ENLPA ENLMOD 13 16 GND GND 14 ...

Page 6

... PLL bandwidth should be designed to achieve the required hop-rate and, in most systems this bandwidth will exceed the minimum modulation frequency. With the PLL active during modulation, the loop will 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 ...

Page 7

... Alternative components and component values are shown on the schematic. These should be selected according to the intended application. The schematic uses the following ICs 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 7 2 pin to 0V ...

Page 8

... UHF FM/FSK Transmitter 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 8 Figure 4: Application Schematic All trademarks and service marks are held by their respective companies CMX017 Advance Information ...

Page 9

... UHF FM/FSK Transmitter Figure 5: Application Layout - Top Copper Figure 6: Application Layout - Bottom Copper (not reversed) Available from http://www.mxcom.com. 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 9 ...

Page 10

... Device in Power-Down Modes I in STANDBY mode (ENLPA=LO and ENLMOD=HI SLEEP Mode (ENLPA=LO and ENLMOD=LO) CC 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 10 Pin Min. 1, 12, 22, -0 13, 16, -0 ...

Page 11

... With external matching. 4. Stepped modulation voltage input from 1.0V to 2.0V. 5. Stepped modulation voltage from 0V to 3.0V. 6. Input Power = -15dBm to -1dBm. 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 11 Pin ...

Page 12

... UHF FM/FSK Transmitter 6.2 Packaging Figure 7: 28-Pin Plastic SSOP Mechanical Outline: Order as part no. CMX017D6 6.3 Handling Precautions As this device is a high performance RF integrated circuit and is ESD sensitive. Adequate precautions must be taken during handling and assembly of this device. 1999 MX-COM, Inc. www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 ...

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