ML6680CQ Micro Linear, ML6680CQ Datasheet - Page 6

• Manufacturer Part Number: ML6680CQ
• Description: Token Ring Copper-to-Fiber Converter
• Manufacturer: Micro Linear

ML6680
AC CHARACTERISTICS
Over full range of operating conditions unless otherwise specified. (Note 1)
CLOCK REFERENCE: XTAL1
TWISTED PAIR RECEIVER: TPINP, TPINN
OPTICAL RECEIVER: OPINP, OPINN
PROPAGATION DELAYS STEADY STATE
INSERTION AND BYPASS KEY GENERATION (Fig. 1)
6
f
D
t
t
t
t
t
t
t
t
t
t
T_K1
T_K2
T_K3
T_BYP
T_KINIT1
T_KINIT4
T_KOFF
XO
THTP
USQTP
REJTP
THOP
USQOP
REJOP
TPOP
OPTP
TPTP
OPOP
SYMBOL
XO
Reference Clock Frequency
Reference Clock Duty Cycle
Input Pulse Width Threshold
Time to Unsquelch (Off to On)
Time to Reject (On to Off)
Input Pulse Width Threshold
Time to Unsquelch (Off to On)
Time to Reject (On to Off)
TPINP-TPINN to OPOUT
OPINP-OPINN to
TPOUTP-TPOUTN
TPINP-TPINN to
TPOUTP-TPOUTN
OPINP-OPINN to OPOUT
Key Element #1
(avg. P
Key Element #2
(avg. P
Key Element #3
(avg. P
Bypass Element
(avg. P
Time that phantom power
should be applied in config 1
before generating the insertion
key.
Time that the optical input
should be valid in config 4
before generating the insertion
key.
Time that the optical input
should be invalid before
generating the bypass key.
O
O
O
O
< P
> P
< P
> P
PARAMETER
O_Off
O_Off
O_Off
O_Off
)
)
)
)
V(INSERTED) > 0.7V
V(INSERTED) > 0.7V
V(INSERTED) = 0V
V(INSERTED) > 0.7V
V(INSERTED) = 0V
V(KEYGEN) = V
V(KEYGEN) = V
V(PHTM1) = 0V, V(PHTM2) = 0V
V(KEYGEN) = VCC, V(TPINOK) = 0V
V(PHTM1) = 0V, V(PHTM2) = 0V
CONDITIONS
CC
CC
, V(TPINOK) > 0.7V
, V(TPINOK) = 0V
1616
1616
MIN
32.7
4.85
550
550
550
808
0.8
0.8
30
2
3
3
26.5
26.5
26.5
26.5
TYP
MAX
1000
1000
1000
1717
34.5
858
1.2
1.2
70
20
30
30
20
5
9
9
UNITS
kHz
ms
ms
ms
ms
%
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s