DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 66

• Manufacturer Part Number: DM9620
• Description: USB2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

10 Magnetic and Crystal Selection Guide
10.1 Magnetic Selection Guide
Refer to Table 1 for transformer requirements.
Transformers, meeting these requirements, are
available from a variety of magnetic manufacturers.
Designers should test and qualify all magnetic before
using them in an application. The transformers listed
in Table 1 are electrical equivalents, but may not be
10.2 Crystal Selection Guide
A crystal can be used to generate the 25MHz /
12MHz (Option) reference clock instead of an
oscillator. The crystal must be a fundamental type,
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
Type
Frequency
Equivalent Series Resistance
Load Capacitance
Case Capacitance
Power Dissipation
Manufacturer
MAGCOM
Bel Fuse
DELTA
Halo
PARAMETER
Table
pin-to-pin equivalents. Designers should test and
qualify all magnetic specifications before using them
in an application. RoHS regulations, please contact
with your magnetic vendor, this table only for you
reference
and series-resonant. Connects to pins X1 and X2,
and shunts each crystal lead to ground with a 15pf
capacitor (see figure 10-1).
Fundamental, series-resonant
25.000 MHz +/- 30ppm
25 ohms max
22 pF typ.
7 pF max.
1mW max.
LFE8505-DC , LFE8563-DC, LFE8583-DC
TG110-S050N2, TG110-LC50N2
USB2.0 to Fast Ethernet Controller
SPEC
HS9016, HS9024
S558-5999-W2
Part Number
DM9620
66