1894K-40LF IDT, 1894K-40LF Datasheet - Page 13

• Manufacturer Part Number: 1894K-40LF
• Description: Ethernet ICs 3.3V 10/100 PHY RMII
• Manufacturer: IDT

Specifications of 1894K-40LF

• Rohs: yes
• Part # Aliases: ICS1894K-40LF

Crystal or Oscillator Connection
IDT® 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
MII w/ Crystal Input
MII w/ Oscillator Input
RMII w/ Oscillator Input
25 pF
CMOS
50.000
MHz
REF_OUT
CMOS
25.000
REF_OUT
MHz
36
NC
36
REF_OUT
NC
36
33 Ohm (optional)
25.000MHz
ICS1894-40
ICS1894-40
33 Ohm (optional)
ICS1894-40
REF_IN
REF_IN
13
37
37
REF_IN
25 pF
10 pF (optional)
37
10 pF (optional)
NOTE: 25 pF crystal load
capacitors were required to
bring the ppm for the 25 MHz
crystal within the ±50 ppm on
the IDT 1894 PHY evaluation
board. The crystal used had a
recommended load capacitance
of 18 pF.
ICS1894-40
PHYCEIVER
REV K 022412