KSZ8862-16_10 MICREL [Micrel Semiconductor], KSZ8862-16_10 Datasheet - Page 122

• Manufacturer Part Number: KSZ8862-16_10
• Description: 2-Port Ethernet Switch with Non-PCI Interface and Fiber Support
• Manufacturer: MICREL [Micrel Semiconductor]

Selection of Isolation Transformers
A 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode choke
is recommended to exceed FCC requirements.
Table 35 gives recommended transformer characteristics.
Selection of Reference Crystal
Micrel, Inc.
August 2010
Parameter
Turns ratio
Open-circuit inductance (min)
Leakage inductance (max)
Inter-winding capacitance (max)
D.C. resistance (max)
Insertion loss (max)
HIPOT (min)
Chacteristics
Frequency
Frequency tolerance (max)
Load capacitance (max)
Series resistance
Magnetic Manufacturer
Pulse
Pulse (low cost)
Transpower
Bel Fuse
Delta
LanKom
Table 37. Typical Reference Crystal Characteristics
Table 36. Qualified Single Port Magnetic
Table 35. Transformer Selection Criteria
Value
1 CT : 1 CT
350μH
0.4μH
12pF
0.9Ω
1.0dB
1500Vrms
Part Number
H1102
H1260
HB726
S558-5999-U7
LF8505
LF-H41S
Value
25
±50
20
25
122
Test Condition
100mV, 100kHz, 8mA
1MHz (min)
0MHz – 65MHz
Auto MDI-X
Yes
Yes
Yes
Yes
Yes
Yes
Units
MHz
ppm
pF
Ω
Number of Port
1
1
1
1
1
1
KSZ8862-16/32MQL
M9999-081310-3.1