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ADF7010BRU

High Performance ISM Band ASK/FSK/GFSK Transmitter IC

Analog Devices 

a

High Performance ISM Band

ASK/FSK/GFSK Transmitter IC

ADF7010

FEATURES

GENERAL DESCRIPTION

Single Chip Low Power UHF Transmitter

The ADF7010 is a low power OOK/ASK/FSK/GFSK UHF

902 MHz–928 MHz Frequency Band

transmitter designed for use in ISM band systems. It contains

On-Chip VCO and Fractional-N PLL

an integrated VCO and sigma-delta fractional-N PLL. The

2.3 V–3.6 V Supply Voltage

output power, channel spacing, and output frequency are pro-

Programmable Output Power

grammable with four 24-bit registers. The fractional-N PLL

–16 dBm to +12 dBm, 0.3 dB Steps

enables the user to select any channel frequency within the U.S.

Data Rates up to 76.8 kbps

Low Current Consumption

28 mA at 8 dBm Output

Power-Down Mode (<1 ␮A)

24-Lead TSSOP Package

E APPLICATIONS

Low Cost Wireless Data Transfer

Wireless Metering

Remote Control/Security Systems

T Keyless Entry

OLE OSC1

OSC2

، CLK

S DVDD

،R

DGND

OB TxCLK

OOK/ASK

902 MHz–928 MHz band, allowing the use of the ADF7010 in

frequency hopping systems.

It is possible to choose from the four different modulation

schemes: Binary or Gaussian Frequency Shift Keying (FSK/

GFSK), Amplitude Shift Keying (ASK), or On/Off Keying

(OOK). The device also features a crystal compensation register

that can provide Ϯ1 ppm resolution in the output frequency.

Indirect temperature compensation of the crystal can be accom-

plished inexpensively using this register.

Control of the four on-chip registers is via a simple 3-wire inter-

face. The devices operate with a power supply ranging from

2.3 V to 3.6 V and can be powered down when not in use.

FUNCTIONAL BLOCK DIAGRAM

CLKOUT CPVDD CPGND

CREG

CVCO

VCOGND

OOK/ASK

VDD

PFD/

CHARGE

PUMP

، FRACTIONAL N

VCO

RFOUT

PA

RFGND

LDO

REGULATOR

CREG

TxDATA

FSK/GFSK

SIGMA-DELTA

LE

DATA

CLK

SERIAL

INTERFACE

FREQUENCY

COMPENSATION

CENTER

FREQUENCY

LOCK DETECT

MUXOUT

MUXOUT

RSET

CE

AGND

TEST

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

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