ML4664 Datasheet, PDF (6/16 Pages) Micro Linear Corporation – 10BASE-FL to 10BASE-T Converter

ML4664/ML4669
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
PARAMETER
OP TO TP (SEE FIGURE 1)
t_TPODY Twisted Pair Start-up Delay
t_TPSDY Twisted Pair Steady State Delay
t_TPSPW Twisted Pair Turn Off Pulse Width
t_PS Twisted Pair Jitter
TP TO OP (SEE FIGURE 2)
t_OPODY Optical Transmit Start-up Delay
t_OPSDY Steady State Delay
t_OPDI Turn Off Width from Data to Idle
1/t_IDF Idle Frequency
P_IDC Idle Duty Cycle
t_OPJ Jitter into 31W Load
OPTICAL LINK VERIFICATION (SEE FIGURES 3-5)
t_OLL No Light (No Transitions) to
LMON High
t_OLM
Low Light (Below Threshold) to
LMON High
t_OLO
Light On (Above Threshold, Transitions
<3µs) to LMON Low
TWISTED PAIR LINK VERIFICATION (SEE FIGURE 6)
t_LT Link Loss Time
t_LTMIN Link Time Minimum
t_LTMAX Link Time Maximum
LINK PULSE TRANSMIT (SEE FIGURE 7)
t_LPRR Link Pulse Rep Rate
t_LPW Link Pulse Width
LED TIMING (SEE FIGURE 8)
t_LED LED on Time
CONDITIONS
MIN
TYP
MAX UNITS
500
ns
35
ns
180
ns
±3.5
ns
500
ns
15
ns
400
2100
ns
0.85
1.25 MHz
45
55
%
±1.5
ns
3
10
µs
50
100
200
µs
0.25
0.5
0.75
s
50
150
ms
2
7
ms
25
150
ms
8
16
24
ms
85
120
200
ns
8
16
32
ms
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
Note 2: The output current may be increased to 100mA by changing the RTSETOP resistor for the CQ (PLCC) package option only. See equation (1) on page 9. The increased
current option is not available for the CH (TQFP) package option.
6