ST7538Q Просмотр технического описания (PDF) - STMicroelectronics

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ST7538Q

FSK power line transceiver

STMicroelectronics 

ST7538Q

FSK power line transceiver

General features

■ Half duplex frequency shift keying (FSK)

transceiver

■ Integrated power line driver with programmable

voltage and current control

■ Programmable interface:

– Synchronous

– Asynchronous

■ Single supply voltage (from 7.5 up to 12.5V)

■ Very low power consumption (Iq = 5mA)

■ Integrated 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 to application in accordance with EN

50065 CENELEC specifications

■ Carrier or preamble detection

■ Band in use detection

■ Programmable 24 or 48 bit register with

security checksum

■ Mains zero crossing detection and

synchronization

■ Watchdog timer

■ Output voltage freeze

■ 8 or 16 bit header recognition

■ UART/SPI host interface

■ ST7537 compatible

Order codes

TQFP44 Slug Down

Description

The ST7538Q 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, band in use are

included. Realized in Multipower BCD5

technology that allows to integrate DMOS, Bipolar

and CMOS structures in the same chip.

Part number

Package

Packaging

ST7538Q

ST7538QTR

TQFP44 Slug Down

TQFP44 Slug Down

Tube

Tape and reel

July 2006

Rev 1

1/44

www.st.com

44

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