KSZ8001SLI Micrel Semiconductor, Inc., KSZ8001SLI Datasheet - Page 44

• Manufacturer Part Number: KSZ8001SLI
• Description: 1.8V, 3.3V 10/100BASE-T/TX/F Physical Layer Transceiver
• Manufacturer: Micrel Semiconductor, Inc.

March 2006
Micrel
Selection of Isolation Transformer
A 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode choke is
recommended for exceeding FCC requirements. The following table gives recommended transformer characteristics.
Selection of Reference Crystal
An oscillator or crystal with the following typical characteristics is recommended.
Parameter
Turns Ratio
Open-Circuit Inductance (min.)
Leakage Inductance (max.)
Inter-Winding Capacitance (max.)
D.C. Resistance (max.)
Insertion Loss (max.)
HIPOT (min.)
Charateristics
Frequency
Frequency Tolerance(max)
Load Capacitance (max)
Series Resistance
Single Port
Magnetic manufacturer
Pulse
Bel Fuse
Bel Fuse
Bel Fuse
YCL
Transpower
Delta
LanKom
Part number
H1102
S558-5999-U7
SI-46001
SI-50170
PT163020
HB726
LF8505
LF-H41S
Magnetic Vendor Selection Lists
Transformer Selection Criteria
Value
1 CT : 1 CT
350 uH
0.4 uH
12 pF
0.9 Ohms
1.0 dB
1500 Vrms
Value
25.00000
± 50
20
40
44
AUTO MDIX
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Test Condition
100 mV, 100 kHz, 8 mA
1 MHz (min.)
0-65 MHz
Units
MHz
ppm
pF
Ω
Number of port
1
1
1
1
1
1
1
1
Revision 1.03
KSZ8001