ML2724DH Micro Linear, ML2724DH Datasheet

ML2724DH

Manufacturer Part Number

ML2724DH

Description

Manufacturer

Micro Linear

Datasheet

1.ML2724DH.pdf (26 pages)

Specifications of ML2724DH

Date_code

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Download datasheet (865Kb)

The ML2724 is a fully integrated 1.5Mbps frequency

shift keyed (FSK) transceiver that operates in the

unlicensed 2.4GHz ISM frequency band. The device

has been optimized for digital cordless telephone

applications and includes all the frequency generation,

receive and transmit functions. Automatically adjusted

filters eliminate mechanical tuning. Closed loop

modulation eliminates frequency drift and permits

practically unlimited TX duration. The transmitter

generates a 3dBm FSK output signal.

The 1.5Mbps data rate permits data spreading, such as

Direct Sequence Spread Spectrum (DSSS) modulation,

which improves range. The dual conversion Low-IF

receiver has all of the sensitivity and selectivity

advantages of a traditional super-heterodyne without

requiring costly, bulky external filters, while providing

the integration advantages of direct conversion.

The phase locked loop (PLL) synthesizer is completely

integrated, including the voltage controlled oscillator

(VCO), tuning circuits, and VCO resonator. This allows

the ML2724 to be used in frequency hopped spread

spectrum (FHSS) applications.

The ML2724 contains internal voltage regulation.

also contains

registers. The device can be placed in a low power

standby mode for current sensitive applications. It is

packaged in a 32TQFP.

DS2724-F-01

ML2724DH

PART #

GENERAL DESCRIPTION

PIN CONFIGURATION

ORDERING INFORMATION

RXON

PAON

XCEN

AOUT

DATA

-10

TEMP RANGE

CLK

VSS

C to +60

PLL and transmitter configuration

32 31 30 29 28 27 26 25

10 11 12 13 14 15 16

32 Pin TQFP 7mmx7mm

PACKAGE

2.4GHz Low-IF 1.5Mbps FSK Transceiver

VCCA

RVLO

TXOB

TXO

GNDRXMX2

GNDRXMX

GNDRF

RXI

DS2724-F-01

SPEC

Receive Input

TXO/TXOB

2.4 GHz

Output

RXI

FEATURES

APPLICATIONS

BLOCK DIAGRAM

Complete 2.4GHz FSK Transceiver

Closed Loop TX Modulation

Low IF Receiver: No external IF filters required.

Fully Integrated frequency synthesizer:

Sigma-Delta Fractional-N two-port modulator

Automatic Filter Alignment

- No manufacturing adjustments required.

No external data slicer components required

Control outputs correctly sequence and control PA

3-wire control interface

Analog RSSI output

2.4GHz FSK Data Transceivers

- High data rate (1.5Mbps)

- -90dBm sensitivity (DSSS modulation)

- 3dBm Output Power (differential, typical)

- No external resonator required.

- Digital Cordless Telephones

- Wireless PC Peripherals

- Wireless Game Controllers

- Wireless Streaming Media

Transmit

Mixer

Bandgap

Divide

by 2

Downmixers

VTUNE

Quadrature

Divider

1.6 GHz

VCO

Alignment

Final Datasheet

Filter

Divider

PLL

Modulator

Two-port

RSSI

PLL Loop

Filter

P.D.

QPO

ML2724

Test Mux

Registers

Control

Divider

Control

Mode

Ref.

APRIL 2003

AOUT

DATA

PAON

RXON

XCEN

Transmit Data In

CLK

Receive Data

Frequency

Reference

TPC

FREF

RSSI

DOUT

Out

DIN

Control Bus

Serial

control lines

Parallel

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