KSZ8041FTLI Micrel Inc, KSZ8041FTLI Datasheet - Page 35

• Manufacturer Part Number: KSZ8041FTLI
• Description: Physical Layer Transceiver 10/100BASE-FX ( )
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8041FTLI

• Number Of Drivers/receivers: 1/1
• Protocol: SMII
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-3294 - BOARD EVALUATION KSZ8041FTL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3347

Micrel, Inc.
Reference Clock Connection Options
A crystal or clock source, such as an oscillator, is used to provide the reference clock for the KSZ8041TL/FTL/MLL.
The following figure illustrates how to connect the 25MHz crystal and oscillator reference clock for MII mode.
For the KSZ8041TL/FTL, the following figure illustrates how to connect the 50MHz oscillator reference clock for RMII
mode.
For the KSZ8041TL/FTL, the following figure illustrates how to connect the 125MHz oscillator reference clock for SMII
mode.
December 2009
22pF
22pF
22pF
22pF
25MHz XTAL
+/-50ppm
Figure 6. 25MHz Crystal / Oscillator Reference Clock for MII Mode
Figure 8. 125MHz Oscillator Reference Clock for SMII Mode
Figure 7. 50MHz Oscillator Reference Clock for RMII Mode
XI
XO
125MHz OSC
+/-100ppm
NC
NC
CLOCK
XO
35
25MHz OSC
+/-50ppm
NC
NC
XI
XO
KSZ8041TL/FTL/MLL
M9999-120909-1.2