TSS521D集成電路（IC）的驅(qū)動器接收器收發(fā)器規(guī)格書PDF中文資料

TSS521D屬于集成電路（IC）的驅(qū)動器接收器收發(fā)器。由美國德州儀器公司制造生產(chǎn)的TSS521D驅(qū)動器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長電纜或印制線進行通信。確切的功能會因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對于通信用途可能并非絕對必要，但對于可能的使用環(huán)境卻是明智之選。

1FEATURES

? Meter-Bus Transceiver (for Slave) Meets

Standard EN1434-3

? Receiver Logic With Dynamic Level

Recognition

? Constant-Current Sink Adjustable By Resistor

? Polarity Independent

? Power-Fail Function

? Module Supply Voltage Switch

? 3.3-V Constant Voltage Source

? Up to 9600 Baud in Half Duplex for UART

Protocol

? Slave Power Support

– Supply From Meter-Bus by Output VDD

– Supply From Meter-Bus by Output VDD or

From Backup Battery

– Supply From Battery – Meter-Bus Active for

Data Transmission Only

APPLICATIONS

? E-metering

? Advanced Metering Infrastructure (AMI)

? Water Meters

? Gas Meters

? Heat Meters

DESCRIPTION

The TSS521 device is a single-chip transceiver

developed for Meter-Bus standard (EN1434-3) applications.

The TSS521 interface circuit adjusts the different

potentials between a slave system and the Meter-Bus master. The connection to the bus is polarity

independent and supports full galvanic slave isolation

with optocouplers.

The circuit is supplied by the master through the bus.

Therefore, this circuit offers no additional load for the

slave battery. A power-fail function is integrated.

The receiver has dynamic level recognition, and the

transmitter has a programmable current sink.

A 3.3-V voltage regulator with power reserve for a

delayed switch off at bus fault is integrated.