78Q2120C Teridian Semiconductor Corp. (TDK Semiconductor), 78Q2120C Datasheet - Page 28

• Manufacturer Part Number: 78Q2120C
• Description: 10/100 Ethernet PHYS
• Manufacturer: Teridian Semiconductor Corp. (TDK Semiconductor)

10BASE-T Transmitter (Informative)
The specifications in the following table are included for information only. They are mainly a function of the
external transformer and termination resistors used for measurements.
10BASE-T Receiver
© 2003 TDK Semiconductor Corporation, Proprietary and Confidential
PARAMETER
Output return loss
Output Impedance Balance
Peak Common-mode Output Voltage
Common-mode rejection
Common-mode rejection jitter
PARAMETER
DLL Phase Acquisition Time
Jitter Tolerance (pk-pk)
Input Squelched Threshold
Input Unsquelched Threshold
Differential Input Resistance
Bit Error Ratio
Common-mode rejection
1 MHz < freq < 20 MHz
15 V
wave applied to
transmitter common-
mode. All data
sequences.
15 V
wave applied to
transmitter common-
mode. All data
sequences.
Square wave
0 < f < 500 kHz
Not tested
pk
pk
CONDITION
CONDITION
, 10.1 MHz sine
, 10.1 MHz sine
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10/100BASE-TX Transceiver
29 17
−
MIN
MIN
300
600
15
30
25
log



10
f



NOM
NOM
10
750
400
10
20
-10
MAX
MAX
100
900
500
50
1
78Q2120C
mVppd
mVppd
UNIT
UNIT
Rev_1.1
mV
mV
BT
dB
dB
kΩ
ns
ns
V