ST7540 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7540

FSK power line transceiver

STMicroelectronics 

ST7540

FSK power line transceiver

General features

■ Half-duplex frequency shift keying (FSK)

transceiver

■ Integrated power line driver with programmable

voltage and current control

■ Programmable mains access:

– Synchronous

– Asynchronous

■ Single supply voltage (from 7.5V up to 13.5V)

■ Very low power consumption (Iq = 5mA)

■ Integrates 5V voltage regulator (up to 50mA)

with short circuit protection

■ Integrated 3.3V voltage regulator (up to 50mA)

with short circuit protection

■ 3.3V or 5V digital supply

■ 8 Programmable transmission frequencies

■ Programmable baud rate up to 4800BPS

■ Receiving sensitivity up to 250µVRMS

■ Suitable for applications in accordance with EN

50065 Cenelec specification

■ Carrier or preamble detection

■ Band in use detection

■ Programmable control register

■ Watchdog timer

■ 8 or 16 Bit header recognition

■ ST7537 and ST7538 compatible

■ UART/SPI host interface

HTSSOP28 Exposed Pad

Description

The ST7540 is a Half Duplex

synchronous/asynchronous FSK Modem

designed for power line communication network

applications. It operates from a single supply

voltage and integrates a line driver and two linear

regulators for 5V and 3.3V. The device operation

is controlled by means of an internal register,

programmable through the synchronous serial

interface. Additional functions as watchdog, clock

output, output voltage and current control,

preamble detection, time-out and band in use are

included. Realized in Multipower BCD5

technology that allows to integrate DMOS, Bipolar

and CMOS structures in the same chip.

Order codes

Part number

ST7540

ST7540TR

Package

HTSSOP28 (Exposed Pad)

HTSSOP28 (Exposed Pad)

Packaging

Tube

Tape and reel

September 2006

Rev 2

1/44

www.st.com

44

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