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型號(hào)：	E5550F-DOW
廠商：	ATMEL CORP
元件分類：	通信及網(wǎng)絡(luò)
英文描述：	SPECIALTY TELECOM CIRCUIT, UUC7
封裝：	DIE-7
文件頁(yè)數(shù)：	422/1069頁(yè)
文件大?。?/td>	14303K
代理商：	E5550F-DOW

SAM4CP [DATASHEET]

43051E–ATPL–08/14

27.4.1.2 Filtering Stage

The filtering stage is composed by band-pass filters which have been designed to achieve high performance in field

deployments complying at the same time with the proper normative and standards.

The in-band flat response filtering stage does not distort the injected signal, reduces spurious emission to the limits set

by the corresponding regulation and blocks potential interferences from other transmission channels.

The Filtering stage has three aims:

Band-pass filtering of high frequency components of the square waveform generated by the Transmission Stage.

Adapt Input/Output impedances for optimal reception/transmission. This is controlled by TXRX signal.

In some cases, Band-pass filtering for received signals.

When the system is intended to be connected to a physical channel with high voltage or which is not electrically

referenced to the same point then the filtering stage must be always followed by a coupling stage.

27.4.1.3 Coupling Stage

The coupling stage blocks the DC component of the line to/from which the signal is injected/received (i.e.: 50/60 Hz of the

mains). This is carried out by a high voltage capacitor.

Coupling stage could also electrically isolate the coupling circuitry from the external world by means of a 1:1 transformer.

27.4.1.4 Reception Stage

The reception stage adapts the received analog signal to be properly captured by the PPLC internal reception chain.

Reception circuit is independent of the PLC channel which is being used. It basically consists of:

Anti aliasing filter (RC Filter)

Automatic Gain Control (AGC) circuit

Driver of the internal ADC

The AGC circuit avoids distortion on the received signal that may arise when the input signal is high enough to polarize

the protective diodes in direct region.

The driver to the internal ADC comprises a couple of resistors and a couple of capacitors. This driver provides a DC

component and adapts the received signal to be properly converted by the internal reception chain.

27.4.2 ATPLCOUP boards

summarizes the main characteristics of currently available PLC coupling reference designs.

Please refer to Atmel doc43052 “PLC Coupling Reference Designs” for a complete description of

ATPLCOUP boards.

Table 27-1. ATPLCOUP boards

PRIME Channel

206 - 417 kHz

Ch 4, 5, 6, 7

96 - 144 kHz

151 - 472 kHz

Ch 3, 4, 5, 6, 7, 8

相關(guān)PDF資料	PDF描述
E5530H-230-S8	SPECIALTY TELECOM CIRCUIT, PDSO8
E5530H-230-DOW	SPECIALTY TELECOM CIRCUIT, UUC
ECM2A5C3A12-29.939MTR	QUARTZ CRYSTAL RESONATOR, 29.939 MHz
ECM2A5C3A32-34.400M	QUARTZ CRYSTAL RESONATOR, 34.4 MHz
ED1702N	NPN general purpose transistor

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
E5550F-S8	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-DIT	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-DOW	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder
E5551A-FP008	制造商:未知廠家制造商全稱:未知廠家功能描述:TRANSPONDER\|CMOS\|SOP\|8PIN\|PLASTIC
E5552	制造商:未知廠家制造商全稱:未知廠家功能描述:Transponder

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