78Q2120 Teridian Semiconductor Corp. (TDK Semiconductor), 78Q2120 Datasheet - Page 25

• Manufacturer Part Number: 78Q2120
• Description: 10/100 Ethernet PHYS
• Manufacturer: Teridian Semiconductor Corp. (TDK Semiconductor)

10/100BASE-TX
Ethernet Transceiver
ANALOG ELECTRICAL CHARACTERISTICS
100BASE-TX Transmitter
100BASE-TX Transmitter
The specifications in the following table are included for information only.
Note: Measured at the line side of the transformer.
PARAMETER
Peak Output Amplitude, Vp+, Vp-
(See note below)
Output Amplitude Symmetry
Output Overshoot
Rise/Fall time, tr, tf
Rise/Fall time Imbalance
Duty Cycle Distortion
PARAMETER
Return Loss
Open Circuit Inductance
Jitter
Test Condition: Transformer P/N:
Line Termination:
RIBB:
Best-fit over 14 bit
times;
0.5 dB Transformer
loss
Percent of Vp+, Vp-
10 - 90% of Vp+, Vp-
Deviation from best-fit
time-grid;
010101... Sequence
2 < f < 30 MHz
30 < f < 60 MHz
60 < f < 80 MHz
-8 < Iin < 8 mA
Scrambled Idle
|Vp +|
|Vp -|
|tr - tf|
TLA-6T103
100Ω ±1%
9.76k ±1% @ 3.3V
CONDITION
CONDITION
25
16 20
0.98
MIN
950
3
−
log
MIN
350
16
10
æ
ç
è
30
NOM
MHz
f
ö
÷
ø
MAX
1050
±250
MAX
1.02
500
1.4
5
5
UNIT
UNIT
mV
dB
µH
ns
ps
ps
ns
%