ML4644 데이터 시트보기 (PDF) - Micro Linear Corporation
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ML4644 Datasheet PDF : 11 Pages
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AC ELECTRICAL CHARACTERISTICS
SYMBOLS
PARAMETER
TRANSMIT
tXODY
tTXSDY
tTXFPW
tTXSOI
RECEIVE
Transmitter Turn-On Delay
Transmit Steady State Prop. Delay
Transmit Turn-Off Pulse Width
Transmit Turn-Off Start of Idle
tRXODY
tRXSDY
tRXFPW
tRXSOI
tAR
Receive Turn-On Delay
Receive Steady State Prop. Delay
Receive Turn-Off Pulse Width
Receive Turn-Off Start of Idle
Differential Output Rise Time
20% to 80% (Rx±, COL±, TxOUT±)
tAF
Differential Output Fall Time
20% to 80% (Rx±, COL±, TxOUT±)
COLLISION
tCPSQE
tSQEXR
FCLF
Collision Present to SQE Assert
Time for SQE to Deactivate After a Collision
Collision Frequency
Collision Pulse Duty Cycle
XTAL Controlled
XTAL Controlled
FJAM
JAM Frequency at TxOUT±
tSQEDY
SQE Test Delay (Tx Inactive to SQE)
tSQETD
SQE Test Duration
JABBER, LINK TEST AND LED TIMING
XTAL Controlled
tJAD
tJSQE
tLEDT
Jabber Activation Delay
Delay from Outputs Disabled to Collision Oscillator On
REC, COLL, Tx1, Tx2, Tx3, Tx4 On Time
MIN
200
200
0
0
8.5
40
0.6
0.5
7
0.3
ML4644
TYP.
MAX
UNITS
100
200
ns
15
ns
180
ns
250
ns
100
200
ns
15
ns
180
ns
250
ns
3
ns
3
ns
200
ns
500
ns
10
11.5
MHz
50
60
%
5
MHz
1.1
1.6
µs
1.0
1.5
µs
13.5
20
ms
100
ns
1.0
3.0
ms
5
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