LM3S6952 Luminary Micro, Inc, LM3S6952 Datasheet - Page 564
LM3S6952
Manufacturer Part Number
LM3S6952
Description
Lm3s6952 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S6952.pdf
(601 pages)
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Electrical Characteristics
564
a. The Manchester-encoded data pulses, the link pulse and the start-of-idle pulse are tested against the templates and using
Table 23-18. 10BASE-T Transmitter Characteristics (informative)
a. The specifications in this table are included for information only. They are mainly a function of the external transformer
Table 23-19. 10BASE-T Receiver Characteristics
Table 23-20. Isolation Transformers
a. Two simple 1:1 isolation transformers are required at the line interface. Transformers with integrated common-mode
Note:
Parameter Name
Start-of-idle pulse width
Parameter Name
Output return loss
Output impedance balance
Peak common-mode output voltage
Common-mode rejection
Common-mode rejection jitter
Parameter Name
DLL phase acquisition time
Jitter tolerance (pk-pk)
Input squelched threshold
Input unsquelched threshold
Differential input resistance
Bit error ratio
Common-mode rejection
Turns ratio
Open-circuit inductance
Leakage inductance
Inter-winding capacitance
DC resistance
Insertion loss
HIPOT
the procedures found in Clause 14 of IEEE 802.3.
and termination resistors used for measurements.
chokes are recommended for exceeding FCC requirements. This table gives the recommended line transformer
characteristics.
The 100Base-TX amplitude specifications assume a transformer loss of 0.4 dB. For the
transmit line transformer with higher insertion losses, up to 1.2 dB of insertion loss can be
compensated by selecting the appropriate setting in the Transmit Amplitude Selection (TXO)
bits in the MR19 register.
Name
0.9 Ohm (max)
0.40 uH (max)
350 uH (min)
25 pF (max)
1 CT : 1 CT
0.4 dB (typ)
Min
500
275
30
25
Min
-
-
-
Value
1500
-
Nom
10
600
350
Nom
10
20
300
350
29-17log(f/10)
-
-
-10
Max
700
425
Min
Max
15
-
-
-
-
-
@ 10 mV, 10 kHz
-
-
-
-
@ 1 MHz (min)
Preliminary
mVppd
mVppd
a
Condition
0-65 MHz
Unit
Unit
BT
kΩ
+/- 5%
ns
ns
V
Vrms
-
Nom
-
-
-
-
-
Max
100
50
1
-
-
Unit
mV
mV
dB
dB
ns
a
July 25, 2008
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