78Q2120 Teridian Semiconductor Corp. (TDK Semiconductor), 78Q2120 Datasheet - Page 26

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

The specifications in the following table are included for information only.
10BASE-T Transmitter
The Manchester-encoded data pulses, the link pulse and the start-of-idle pulse are tested against the templates
and using the procedures found in Clause 14 of IEEE 802.3.
Note: Measured at the line side of the transformer.
PARAMETER
Peak Differential Output Signal (see note) All data patterns
Link Pulse Width
Start-of-Idle Pulse Width
PARAMETER
Signal Detect Assertion Threshold
(pk-pk)
Signal Detect De-assertion Threshold
(pk-pk)
Differential Input Resistance
PLL Locking Time
Jitter Tolerance (pk-pk)
Baseline Wander Tracking
Signal Detect Assertion Time
Signal Detect De-assertion Time
Test Condition: Transformer P/N:
Line Termination:
RIBB:
TLA-6T103
100Ω ±1%
9.76k ±1% @ 3.3V
CONDITION
CONDITION
26
MIN
MIN
600
300
300
-75
2.2
20
Ethernet Transceiver
NOM
NOM
900
350
100
5
4
10/100BASE-TX
MAX
1000
MAX
400
+75
200
350
1.4
2.8
UNIT
UNIT
mV
mV
kΩ
µs
ns
µs
µs
ns
ns
%
V