KSZ8842-PMBL AM Micrel Inc, KSZ8842-PMBL AM Datasheet - Page 114
KSZ8842-PMBL AM
Manufacturer Part Number
KSZ8842-PMBL AM
Description
2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8842-PMBL.pdf
(119 pages)
Specifications of KSZ8842-PMBL AM
Controller Type
Ethernet Switch Controller
Interface
PCI
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LFBGA
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Industrial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1636 - BOARD EVALUATION KSZ8842-PMQL
Current - Supply
-
Lead Free Status / RoHS Status
Supplier Unconfirmed, Lead free / RoHS Compliant
Other names
576-3348
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Micrel, Inc.
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 for exceeding FCC requirements.
Table 18 gives recommended transformer characteristics.
Selection of Reference Crystal
October 2007
Parameter
Turns ratio
Open-circuit inductance (min)
Leakage inductance (max)
Inter-winding capacitance (max)
D.C. resistance (max)
Insertion loss (max)
HIPOT (min)
Frequency
Frequency tolerance (max)
Load capacitance (max)
Series resistance
Magnetic Manufacturer
Pulse
Pulse (low cost)
Transpower
Bel Fuse
Delta
LanKom
TDK (Mag Jack)
Characteristics
Table 20. Typical Reference Crystal Characteristics
Table 19. Qualified Single Port Magnetics
Table 18. Transformer Selection Criteria
Part Number
H1102
H1260
HB726
S558-5999-U7
LF8505
LF-H41S
TLA-6T718
114
1 CT : 1 CT
1500Vrms
350µH
0.4µH
1.0dB
12pF
0.9Ω
Value
Auto MDI-X
Value
±50
25
20
25
Yes
Yes
Yes
Yes
Yes
Yes
Yes
100mV, 100kHz, 8mA
0MHz – 65MHz
Test Condition
1MHz (min)
Number of Port
MHz
ppm
Units
pF
1
1
1
1
1
1
1
Ω
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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