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HALO Electronics • 1861 Landings Drive, Mountain View, CA 94043 • PH: 650-903-3800
www.haloelectronics.com • info@haloelectronics.com • This Datasheet: fastjack-10base-t.pdf Rev. 7/03
Single Port FastJacks™
With Integrated Filters
HALO is pleased to offer this new series of small footprint 10BASE-T FastJacks
™,
with integrated filters. This series is ideal for low cost Ethernet Controller chip appli-
cations requiring signal filtering. IEEE 802.3 compliant and real estate effective. Check
the HALO 10BASE-T selector guide for the
FastJack™ that is correct for your de-
sign.
HALO
Turns Ratio
Pri Impedance
Part Number
Circuit
TX
RX
TX
RX
HFJ11-S101E
A
1CT:1
1CT:1
100
Ω
100
Ω
HFJ11-S114E
B
1CT:1.41
1CT:1
50
Ω
100
Ω
LED options are also available. Please refer to the LED option datasheet for more information.
Filter Circuit B
Filter Circuit A
HALO
FastJack™
Recommended PCB Layout
Mechanical Drawing
Electrical Specifications @ 25
°C
Operating Temp:
0 to +70
°C
Isolation Voltage:
1,500 Vrms
Insertion Loss (5-10MHz):
-1dB max
Return Loss (5-10MHz):
-15dB min
Attenuation @ 30MHz
Transmit:
-30dB min
Receive:
-18dB min
Cut Off Freq.
17MHz typ
Crosstalk (1-10MHz):
-30dB min
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