ML4665
AC ELECTRICAL CHARACTERISTICS
SYMBOL
Transmit
PARAMETER
MIN
TYP
MAX
UNITS
FTXIDF
tTXDC
tTXNPW
tTXODY
tTXLP
Transmit Idle Frequency
0.85
45
1.25
55
MHz
%
Transmit Idle duty Cycle
Transmit Turn-On Pulse Width
Transmit Turn-On Delay
20
ns
200
500
ns
Transmit loopback Start-up Delay
Transmit Turn-Off Pulse Width
Transmit Start of Idle
ns
tTXFPW
tTXSOI
tTXSDY
tTXJ
180
15
ns
400
2100
50
ns
Transmit Steady State Propagation Delay
Transmit Jitter into 31Ω Load
ns
±1.5
ns
Receive
FRXSFT
tRXODY
tRXFX
Receive Squelch Frequency Threshold
Receive Turn-On Delay
2.51
230
4.5
MHz
ns
285
Last Bit Received to Slow Decay Output
Receive Steady State Propagation Delay
Receive Jitter
300
15
ns
tRXSDY
tRXJ
50
ns
±1.5
ns
tAR
Differential Output Rise Time 20% to 80% (Rx±, COL±)
Differential Output Fall Time 20% to 80% (Rx±, COL±)
4
4
ns
tAF
ns
Collision
tCPSQE
tSQEXR
FCLF
Collision Present to SQE Assert
Time for SQE to Deactivate After Collision
Collision Frequency
0
0
350
700
11.5
60
ns
ns
8.5
40
MHz
%
PCLPDC
Collision Pulse Duty Cycle
50
Jabber and LMON Timing
tJAD
Jabber Activation Delay
20
70
450
100
5
150
750
ms
ms
ns
tJRT
Jabber Reset Unjab Time
250
tJSQE
tLLPH
tLLCL
Delay from Outputs Disabled to Collision Oscillator On
Low Light Present to LMON High
Low Light Present to LMON Low
3
10
µs
250
750
ms
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
Note 2: This dose not include the current from the AUI pull-down resistors, or LED status outputs.
Note 3: LED drivercan sink up to 20mA, but VOL will be higher.
Note 4: Does not include pre-bias current for fiber optic LED which would typically be 3mA.
5
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
