KS8893MQL Micrel Inc, KS8893MQL Datasheet - Page 113
KS8893MQL
Manufacturer Part Number
KS8893MQL
Description
IC MANAGED SWITCH 10/100 128PQFP
Manufacturer
Micrel Inc
Specifications of KS8893MQL
Applications
*
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
Number Of Primary Switch Ports
3
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Power Supply Type
Analog/Digital
Package Type
PQFP
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1457
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Selection of Isolation Transformers
An 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
December 2007
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
Bel Fuse
Bel Fuse (MagJack)
Bel Fuse (MagJack)
Delta
LanKom
Pulse
Pulse (low cost)
Transpower
YCL
TDK (Mag Jack)
Table 35. Typical Reference Crystal Characteristics
Table 34. Qualified Single Port Magnetics
Table 33. Transformer Selection Criteria
Part Number
S558-5999-U7
SI-46001
SI-50170
LF8505
LF-H41S
H1102
H1260
HB726
LF-H41S
TLA-6T718
Value
1 CT : 1 CT
350μH
0.4μH
12pF
0.9Ω
1.0dB
1500Vrms
Value
25.00000
±50
20
25
113
Auto MDI-X
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Test Condition
100mV, 100kHz, 8mA
1MHz (min.)
0MHz – 65MHz
Units
MHz
ppm
pF
Ω
Number of Port
1
1
1
1
1
1
1
1
1
1
M9999-121007-1.5