ML4658 Datasheet, PDF (5/17 Pages) Micro Linear Corporation – 10BASE-T Transceiver

ELECTRICAL CHARACTERISTICS (Continued)
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
Transmit
t_TXNPW
t_TXFPW
t_TXLP
t_TXODY
t_TXSDY
t_TXJ
Receive
Transmit Turn-On Pulse Width
Transmit Turn-Off Pulse Width
Transmit Loopback Startup Delay
Tranmitter Turn-On Delay
Transmit Steady State Prop. Delay
Transmitter Jitter
t_RXODY
t_RXTDY
t_RXFX
t_RXSDY
t_RXJ
t_AR
t_AF
Collision
Receive Turn-On Delay if Transmit is Idle
Receive Turn-On Delay if Tranmit is Active
Last Bit Received to Start Slow Decay Output
Receive Steady State Prop. Delay
Receiver Jitter
Differential Output Rise Time 20% to 80% (Rx±, COL±)
Differential Output Fall Time 20% to 80% (Rx±, COL±)
t_CPSQE
t_TXRX
Collision Present to SQE Assert
Time for Loopback to swtich from Tx to RxTP
during a collision
t_SQEXR
Time for SQE to deactivate given that RxTP goes idle and
TxTP continues
t_SQEXT
Time for SQE to deactivate given that TxTP goes idle
and RxTP continues
t_CLF
Collision Frequency
t_CLPDC
Collision Pulse Duty Cycle
t_SQEDY
SQE Test Delay (Tx Inactive to SQE)
t_SQETD
SQE Test Duration
Jabber, Link Test and LED Timing
t_JAD
t_JRT
t_JSQE
t_LLT
t_LTN
t_LTX
t_TLP
t_LTPW
t_LEDT
Jabber Activation Delay
Jabber Reset Unjab Time
Delay from Outputs Disabled to Collision Oscillator On
Link Loss Time
Link Test Pulse Receive Minimum Time
Link Test Pulse Receive Maximum Time
Link Test Pulse Repetition Rate
Link Test Pulse Width
XMT, RCV, CLSN On Time
ML4658
MIN
230
0
0
0
0
8.5
40
0.6
0.5
20
250
50
2
25
8
85
30
TYP
20
180
15
±2
420
650
800
15
±0.7
3
3
10
50
1.1
1.0
70
450
100
95
4.2
70
16
100
100
MAX
UNITS
ns
ns
200
ns
200
ns
100
ns
±3.5
ns
500
ns
800
ns
ns
100
ns
±1.5
ns
ns
ns
900
900
900
900
11.5
60
1.6
1.5
ns
ns
ns
ns
MHz
%
µs
µs
150
ms
750
ms
ns
150
ms
7
ms
150
ms
24
ms
200
ns
300
ms
5