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參數(shù)資料
| 型號： | AM79C100 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Twisted-Pair Ethernet Transceiver Plus (TPEX Plus) |
| 中文描述： | 雙絞線以太網(wǎng)收發(fā)器（TPEX加） |
| 文件頁數(shù)： | 17/24頁 |
| 文件大小： | 208K |
| 代理商： | AM79C100 |
AMD
17
Am79C100
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Parameter
Symbol
Transmit Timing
t
PWODO
Parameter Description
Min
Max
Unit
DO Pulse Width Accept/
Reject Threshold
V
DO
> |V
ASQ
max|
(Note 3)
15
35
ns
t
PWKDO
DO Pulse Width Maintain/
Turn-Off Threshold
V
DO
> |V
ASQ
max|
(Note 4)
105
200
ns
t
TON
Transmit Start Up Delay
300
ns
t
TSD
Transmit Static Propagation
Delay (DO
±
to TXD
±
)
Transmit End Transmit Delimiter
120
ns
t
TETD
250
450
ns
t
TR
Transmitter Rise Time
(10% to 90%)
10
ns
t
TF
Transmitter Fall Time
(90% to 10%)
10
ns
t
TM
Transmitter Rise and Fall
Time Mismatch
4
ns
t
THD
DO
↑
to TXD+
↑
and TXD–
↓
Delay
DO
↓
to TXD+
↓
and TXD–
↑
Delay
DO
↑
to TXP+
↓
and TXP–
↑
Delay
DO
↓
to TXP+
↑
and TXP–
↓
Delay
XMT Asserted Delay
Steady State
(Note 1)
t
TSD
– 1.0
t
TSD
+ 1.0
ns
t
TLD
Steady State
(Note 1)
t
TSD
– 1.0
t
TSD
+ 1.0
ns
t
THDP
Steady State
(Note 1)
t
TSD
+ 40
t
TSD
+ 60
ns
t
TLDP
Steady State
(Note 1)
t
TSD
+ 40
t
TSD
+ 60
ns
t
XMTON
100
ns
t
XMTOFF
XMT De-asserted Delay
20
62
ms
t
PERLP
Idle Signal Period
8
24
ms
t
PWLP
Link Beat Pulse Width
(Note 1)
75
120
ns
t
PWPLP
Predistortion Idle Link
Beat Width
(Note 1)
40
60
ns
t
JA
Transmit Jabber
Activation Time
20
150
ms
t
JR
Transmit Jabber
Reset Time
250
750
ms
t
JREC
Transmit Jabber
Recovery Time (Minimum time
gap between transmitted
packets to prevent jabber
activation)
(Note 1)
1.0
–
μ
s
t
DODION
DO to DI Startup Delay
300
ns
t
DODISD
DO to DI Static Propagation
Delay
100
ns
Test Conditions
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|---|---|
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