78Q2132 TDK Corp., 78Q2132 Datasheet - Page 32

• Manufacturer Part Number: 78Q2132
• Description: 1/10base-t Homepna/ethernet Transceiver
• Manufacturer: TDK Corp.

78Q2132
1/10BASE-TX
HomePNA/Ethernet Transceiver
ELECTRICAL SPECIFICATIONS
10BASE-T ISOLATION TRANSFORMERS
Two simple isolation transformers are all that are required at the line interface, but transformers with integrated
common-mode choke are recommended for exceeding FCC requirements. This table gives the recommended
line transformer characteristics:
HomePNA ISOLATION TRANSFORMER
A simple 1:1 isolation transformer with integrated series capacitor in the primary is required at the line interface,
but transformers with integrated common-mode choke are recommended for exceeding FCC requirements. This
table gives the recommended line transformer characteristics:
Inter-Winding Capacitance
Inter-Winding Capacitance
Open-Circuit Inductance
Open-Circuit Inductance
Leakage Inductance
Leakage Inductance
Series C at line side
D.C. Resistance
D.C. Resistance
Insertion Loss
Insertion Loss
Turns Ratio
Turns Ratio
HIPOT
HIPOT
NAME
NAME
1.414 CT : 1 CT
(continued)
0.40 uH (max)
350 uH (min)
12 pF (max)
0.9
1.1 dB (typ)
Tx VALUE
1500 Vrms
0.001uF @ 2000v
1 CT : 1 CT
0.25
(max)
140 uH (min)
2.0 uH (max)
1.1 dB (typ)
2000 Vrms
6 pF (max)
VALUE
32
5%
(max)
5%
1 CT : 1 CT
0.40 uH (max)
350 uH (min)
12 pF (max)
0.9
1.1 dB (typ)
Rx VALUE
1500 Vrms
(max)
5%
@ 100 mVRMS, 100 KHz
@ 1 MHz (min)
CONDITION
0 – 100 MHz
@ 10 mV, 10 kHz
@ 1 MHz (min)
0 – 100 MHz
CONDITION