cs8904 Cirrus Logic, Inc., cs8904 Datasheet - Page 2

• Manufacturer Part Number: cs8904
• Description: Crystal Lan? Quad Ethernet Transceiver
• Manufacturer: Cirrus Logic, Inc.

TABLE OF CONTENTS
1.0 INTRODUCTION.....................................................................................................3
2.0 PIN DESCRIPTION.................................................................................................7
3.0 THEORY OF OPERATION ................................................................................. 12
4.0 FUNCTIONAL DESCRIPTION........................................................................... 16
5.0 SPECIFICATIONS................................................................................................. 20
6.0 PACKAGE DIMENSIONS.................................................................................... 33
2
1.1 General Description ......................................................................................................... 3
1.2 System Applications ........................................................................................................ 4
1.3 Key Features and Benefits ............................................................................................... 4
2.1 Controller Interface .......................................................................................................... 8
2.2 10BASE-T Interface ........................................................................................................ 9
2.3 LED Pins .......................................................................................................................... 9
2.4 General Pins ..................................................................................................................... 9
3.1 Overview........................................................................................................................ 12
3.2 Encoder/Decoder (ENDEC)........................................................................................... 12
3.3 10BASE-T Transceiver.................................................................................................. 13
4.1 Reset and Calibration ..................................................................................................... 16
4.2 Mode Control ................................................................................................................. 16
4.3 Controller Interface ........................................................................................................ 16
4.4 External Clock Oscillator............................................................................................... 19
ABSOLUTE MAXIMUM RATINGS................................................................................. 20
RECOMMENDED OPERATING CONDITIONS ............................................................. 20
DC CHARACTERISTICS................................................................................................... 20
DIGITAL INPUT/OUTPUT CHARACTERISTICS .......................................................... 21
SWITCHING CHARACTERISTICS - MODE 1................................................................ 22
SWITCHING CHARACTERISTICS - MODE 2................................................................ 24
SWITCHING CHARACTERISTICS - MODE 3................................................................ 26
SWITCHING CHARACTERISTICS - MODE 4................................................................ 28
SWITCHING CHARACTERISTICS - MODE 5................................................................ 30
10BASE-T CHARACTERISTICS ...................................................................................... 32
CRYSTAL OSCILLATOR REQUIREMENTS.................................................................. 32
1.3.1 Low Cost, Low Noise, More Features .................................................................... 4
3.2.1 Encoder ................................................................................................................ 13
3.2.2 Carrier Detection................................................................................................... 13
3.2.3 Clock and Data Recovery ..................................................................................... 13
3.3.1 10BASE-T Filters ................................................................................................. 14
3.3.2 Transmitter ............................................................................................................ 14
3.3.3 Receiver ................................................................................................................ 14
3.3.4 Collision Detection ............................................................................................... 15
4.1.1 Reset Operation..................................................................................................... 16
4.1.2 Allowing Time for Reset....................................................................................... 16
4.3.1 Transmit and Receive Interface ............................................................................ 16
4.3.2 Control and Status Information............................................................................. 17
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
Crystal LAN™ Quad Ethernet Transceiver
DS191PP2
CS8904