AM79C100 Advanced Micro Devices, AM79C100 Datasheet - Page 17

• Manufacturer Part Number: AM79C100
• Description: Twisted-Pair Ethernet Transceiver Plus (TPEX Plus)
• Manufacturer: Advanced Micro Devices

SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Parameter
Transmit Timing
Symbol
t
t
t
t
t
t
XMTOFF
t
PWODO
t
DODION
DODISD
PWKDO
XMTON
t
t
PWPLP
t
t
PERLP
t
PWLP
AMD
t
t
t
THDP
TETD
t
TLDP
JREC
t
TON
TSD
t
THD
t
TLD
t
t
TR
TM
TF
JA
JR
DO Pulse Width Accept/
Reject Threshold
DO Pulse Width Maintain/
Turn-Off Threshold
Transmit Start Up Delay
Transmit Static Propagation
Delay (DO to TXD )
Transmit End Transmit Delimiter
Transmitter Rise Time
(10% to 90%)
Transmitter Fall Time
(90% to 10%)
Transmitter Rise and Fall
Time Mismatch
DO
and TXD–
DO
and TXD–
DO
and TXP–
DO
and TXP–
XMT Asserted Delay
XMT De-asserted Delay
Idle Signal Period
Link Beat Pulse Width
Predistortion Idle Link
Beat Width
Transmit Jabber
Activation Time
Transmit Jabber
Reset Time
Transmit Jabber
Recovery Time (Minimum time
gap between transmitted
packets to prevent jabber
activation)
DO to DI Startup Delay
DO to DI Static Propagation
Delay
Parameter Description
to TXD+
to TXD+
to TXP+
to TXP+
Delay
Delay
Delay
Delay
V
(Note 3)
V
(Note 4)
Steady State
(Note 1)
Steady State
(Note 1)
Steady State
(Note 1)
Steady State
(Note 1)
(Note 1)
(Note 1)
(Note 1)
Am79C100
DO
DO
Test Conditions
> |V
> |V
ASQ
ASQ
max|
max|
t
t
t
t
TSD
TSD
TSD
TSD
Min
105
250
250
1.0
15
20
75
40
20
8
– 1.0
– 1.0
+ 40
+ 40
t
t
t
t
TSD
TSD
TSD
TSD
Max
200
300
120
450
100
120
150
750
300
100
35
10
10
62
24
60
4
–
+ 1.0
+ 1.0
+ 60
+ 60
Unit
ms
ms
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
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