AD6190ARSRL AD [Analog Devices], AD6190ARSRL Datasheet

AD6190ARSRL

Manufacturer Part Number

AD6190ARSRL

Description

900 MHz RF Transceiver

Manufacturer

AD [Analog Devices]

Datasheet

1.AD6190ARSRL.pdf (8 pages)

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GENERAL DESCRIPTION

The AD6190 900 MHz RF Transceiver provides a complete

RF/IF section for systems operating in the 902 MHz–928 MHz

license-free ISM band. The high level of integration allows several

dozen discrete components to be replaced. It is ideally suited

for use in cordless telephone and wireless data applications.

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

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

otherwise under any patent or patent rights of Analog Devices.

FEATURES

Complete 900 MHz RF Transceiver

On-Chip Low Dropout Regulator

Independent Sleep Modes for TX, RX

28-Lead SSOP Package

APPLICATIONS

902 MHz–928 MHz ISM Band Cordless Telephones

902 MHz–928 MHz ISM Band Wireless Data Systems

LNA

Receive Mixer

Transmit Mixer

Driver Amplifier

VCO

Prescaler

Limiter Amplifier with RSSI

FILTER

S/W

ANT

T/R

VREG

FUNCTIONAL BLOCK DIAGRAM

VCO

64/65

15MHz SYNTHESIZER

The receiver section includes a Low Noise Amplifier (LNA).

The LNA’s output drives an image-reject mixer; the mixer’s

output optimized for 10.7 MHz is filtered and processed by the

limiting IF amplifier.

The transmit section accepts a modulated 10.7 MHz IF input,

and uses an image-reject upconverter to mix the signal up to the

902 MHz–928 MHz RF carrier frequency while suppressing the

unwanted image and LO components. The RF output is raised

to a nominal 0.5 milliwatt (–3 dBm) output level. This output

can be used directly or can drive an external power amplifier to

higher levels.

The on-chip VCO operates at 2 the local oscillator frequency.

This reduces oscillator pulling due to strong interferers in-band

or transmitter leakage. An on-chip 64/65 prescaler allows the

VCO to be controlled by a low cost 15 MHz CMOS synthesizer.

An on-chip low dropout regulator minimizes VCO pushing. The

transmit section, receive section, or both, can be placed in a low

current SLEEP mode when not in use. The AD6190 900 MHz

RF transceiver is packaged in a 28-lead SSOP package.

The AD6190 900 MHz RF Transceiver is part of the Analog

Devices/Zilog “A-to-Z Phone” Spread-Spectrum System for

cordless telephone and data communications applications. Con-

tact Zilog directly at (408) 370-8000 for more information on

the Z87000 series baseband controller chips.

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

Tel: 781/329-4700

Fax: 781/326-8703

AD6190

10.7

MANAGEMENT

REGULATOR

CONTROL

VOLTAGE

POWER

AND

10.7

900 MHz RF Transceiver

World Wide Web Site: http://www.analog.com

10.7

VCOON

LIMOUT

TXON

RXON

RSSI

VBATT

VREG

CONTROLLER

SPECTRUM

SPREAD-

Z87L00

AD6190

Related parts for AD6190ARSRL

AD6190ARSRL Summary of contents

Page 1

FEATURES Complete 900 MHz RF Transceiver LNA Receive Mixer Transmit Mixer Driver Amplifier VCO Prescaler Limiter Amplifier with RSSI On-Chip Low Dropout Regulator Independent Sleep Modes for TX, RX 28-Lead SSOP Package APPLICATIONS 902 MHz–928 MHz ISM Band Cordless ...

Page 2

AD6190–SPECIFICATIONS Parameter RECEIVE RF SECTION (LNA to Mixer Output) Power Gain Noise Figure 1 dB Compression (Input) Input IP3 Image Rejection TRANSMIT UPCONVERTER Image Rejection LO Feedthrough DRIVER AMPLIFIER Nominal Output Power 1 dB Compression VCO Operating Frequency PRESCALER Division ...

Page 3

... C Model Package Description AD6190ARS 28-Lead Shrink Small Outline AD6190ARSRL 28-Lead Shrink Small Outline, Supplied on Reels, 1500 Units per Reel Minimum order quantity 25,000 units. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. ...

Page 4

AD6190 No. Pin Name 1 PREOUT 2 VCOON 3 VBATT 4 VBASE 5 TANK– 6 GND 7 TANK+ 8 RSSI 9 TXIF 10 VREG 11 RXON 12 LIMIN 13 IFAMPCOM 14 IFAMPOUT 15 IFAMPIN 16 VCCIF 17 RXMIXOUT 18 LNAGND ...

Page 5

C 915MHz 1.25 1.0 3.3V +85 C 915MHz 0.75 0.5 0.25 0 –115 –105 –95 –85 –75 –65 –55 PIN – dBm Figure 2. RSSI Voltage vs. Input Power 2.5 2.25 2.0 1.75 ...

Page 6

AD6190 PRODUCT DESCRIPTION The AD6190 is a complete RF/IF transceiver for operation in the 902 MHz–928 MHz Industrial, Scientific and Medical (“ISM”) frequency band. Together with a suitable spread- spectrum controller, the AD6190 can be used to design a spread-spectrum ...

Page 7

Transmit Signal Path The AD6190 transmit chain is designed to accept an input signal generated by the Z87L00 device. The Z87L00 provides a digitally-generated FSK signal at 2.508 MHz, sampled at 8.192 MSPS. This sampling process produces a signal with ...

Page 8

AD6190 Mode Controls The AD6190 is designed as a time-division-duplex (TDD) radio. This means that the transmitter and receiver operate at different times. The AD6190 includes control pins to shut down unused portions of the circuit when not needed, saving ...

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