CDK8904-5 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CDK8904-5

Crystal LAN™ Quad Ethernet Transceiver

Cirrus Logic 

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CS8904

Crystal LAN™ Quad Ethernet Transceiver

10BASE-T CHARACTERISTICS (Over Recommended Operating Conditions;

Received Jitter tested at ±12.0 ns.)

Parameter

Symbol Min

Typ

Max

Transmit

Tx pair Jitter into 100 Ω Load

tTTX1

-

-

8

Tx Pair Return to ≤ 50 mV after Last Positive Transition

tTTX2

-

-

4.5

Tx Pair High Hold Time after Last Positive Transition

tTTX3

250

-

-

Interface

Transmitter Differential Output Voltage

Peak VOD

2.2

-

2.8

Receiver Squelch Level

Peak VISQ

300

-

525

Link Integrity

First Transmitted Link Pulse after Last Transmitted Packet

tLN1

8

16

24

Time Between Transmitted Link Pulses

tLN2

8

16

24

Width of Transmitted Link Pulses

tLN3

60

100

200

Minimum Received Link Pulse Separation

tLN4

2

-

7

Maximum Received Link Pulse Separation

tLN5

25

-

150

Last Receive Activity to Link Fail (Link Loss Timer)

tLN6

30

-

150

CRYSTAL OSCILLATOR REQUIREMENTS

Parameter

Min

Typ

Max

Parallel Resonant Frequency

-

20

-

Resonant Frequency Error

CL = 18 pF

-50

-

+50

Resonant Frequency Change over Operating Temperature

-40

-

+40

Crystal Capacitance

-

-

18

Motional Crystal Capacitance

-

0.022

-

Series Resistance

-

-

35

Unit

ns

ns

ns

V

mV

ms

ms

ns

ms

ms

ms

Unit

MHz

ppm

ppm

pF

pF

Ω

CIRRUS LOGIC ADVANCED PRODUCT DATABOOK

32

DS191PP2

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