83C694D datasheet, PDF - EEWORLD Datasheet

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83C694D: DescriptionIC,ENCODER/DECODER,CMOS,LDCC,44PIN,PLASTIC; CategoryTelecom circuit; File Size154KB，33 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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83C694D Overview

IC,ENCODER/DECODER,CMOS,LDCC,44PIN,PLASTIC

83C694D Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Microchip
Reach Compliance Code	unknown
Is Samacsys	N
JESD-30 code	S-PQCC-J44
Number of terminals	44
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	QCCJ
Encapsulate equivalent code	LDCC44,.7SQ
Package shape	SQUARE
Package form	CHIP CARRIER
power supply	5 V
Certification status	Not Qualified
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal form	J BEND
Terminal pitch	1.27 mm
Terminal location	QUAD
Base Number Matches	1

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Twisted-Pair Interface

and

Manchester

Encoder/Decoder

•

83C694D

Data sheet

83C694D

TABLE OF CONTENTS

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 DOCUMENT SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 OSCILLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 MANCHESTER ENCODER/DIFFERENTIAL DRIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 MANCHESTER DECODER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 COLLISION TRANSLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 TP DIFFERENTIAL DRIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.6 TP DIFFERENTIAL RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7 LOOPBACK FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8 LINK TEST FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.9 AUI/TP AUTOSELECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.10 JABBER AND SQE TEST FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.11 STATUS INDICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.12 TEST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.0 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.0 DC ELECTRICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2 RECOMMENDED OPERATING CONDITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3 DC OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.0 AC OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1 TIMING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.0 PACKAGE DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

83C694D

LIST OF ILLUSTRATIONS

Figure

1-1

1-2

2-1

2-2

2-3

2-4

2-5

2-6

3-1

5-1

5-2

5-3

5-4

5-5

5-6

5-7

5-8

5-9

5-10

5-11

6-1

Title

Page

SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

83C694C BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CRYSTAL CONNECTION DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

AUI TRANSMIT PATH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

AUI RECEIVE PATH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

ZENER DIODE VOLTAGE REGULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TWISTED PAIR TRANSMIT PATH AND TIMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TWISTED PAIR RECEIVE PATH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

83C694C PLCC PACKAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

TRANSMIT TIMING - START OF TRANSMISSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

TRANSMIT TIMING - END OF TRANSMISSION (LAST BIT = 0) . . . . . . . . . . . . . . . . . 21

TRANSMIT TIMING - END OF TRANSMISSION (LAST BIT = 1) . . . . . . . . . . . . . . . . . 22

TRANSMIT TIMING - LINK TEST PULSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

RECEIVE TIMING - START OF PACKET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

RECEIVE TIMING - END OF PACKET (LAST BIT = 0) . . . . . . . . . . . . . . . . . . . . . . . . . 23

RECEIVE TIMING - END OF PACKET (LAST BIT = 1) . . . . . . . . . . . . . . . . . . . . . . . . . 24

COLLISION TIMING (AUI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

COLLISION TIMING (TP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

SQE TEST TIMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

LOOPBACK TIMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

TEST LOADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

44-PIN PLCC PACKAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

LIST OF TABLES

Table

3-1

4-1

5-1

5-2

Title

Page

PIN DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

DC OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

AC OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

83C694C TIMING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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