參數(shù)資料
型號： FC940LVB
英文描述： Eighteen Distributed-Output Clock Driver
中文描述： 18分布式輸出時鐘驅(qū)動器
文件頁數(shù)： 4/6頁
文件大小： 51K
代理商： FC940LVB
www.fairchildsemi.com
4
F
DC Electrical Characteristics (V
CC
I
=
3.3V
±
0.165V, V
CC
O
=
2.5V
±
0.125V)
AC Electrical Characteristics (V
CC
I = 3.3V
±
0.165V, T
A
= 0
°
C to +70
°
C)
(Note 5)
Note 5:
AC Specifications are measured into a 50
Parallel terminated line. See Figure 1. Measurements are made with an input rise time of 1 ns/V.
Note 6:
Skew is defined as the absolute value of the difference between the actual propagation delay between any two outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH to LOW (t
OSHL
) or LOW to HIGH t
OSLH
).
Note 7:
Part-to-Part Skew is defined as the variation in propagation delay between a specific output of device A and the same output of device B at the same
V
CC
, temperature, output loading and input signal conditions. This specification is valid where all outputs of the device are tied together. This specification is
guaranteed by design and statistical process distribution.
Note 8:
This specification assumes an input waveform with 50% duty cycle. The worst case duty cycle degradation will typically occur at f
MAX
.
Capacitance
Symbol
Parameter
Conditions
V
CC
I
V
CC
O
T
A
=
0
°
C to
+
70
°
C
Min
2.135
Units
Max
2.42
V
IH
High Level Input Voltage
PECLK_CLK
3.135–3.465 2.375–2.625
V
OTHER
3.135–3.465 2.375–2.625
3.135–3.465 2.375–2.625
3.135–3.465 2.375–2.625
2.0
1.49
V
V
V
V
IL
Low Level Input Voltage
PECLK_CLK
OTHER
1.825
0.8
V
PP
VCMR
V
OH
Peak-to-Peak Input Voltage
Common Mode Range (Note 4)
High Level Output Voltage
3.135–3.465 2.375–2.625
3.135–3.465 2.375–2.625
3.135–3.405 2.375–2.625
300
1000
V
CC
0.8
mV
V
V
V
CC
1.6
V
CC
0.2
1.7
I
OH
=
100
μ
A
I
OH
=
16 mA
I
OL
=
100
μ
A
I
OL
=
16 mA
3.135
2.375
V
V
V
μ
A
μ
A
mA
V
OL
Low Level Output Voltage
3.135–3.465 2.375–2.625
3.135
0.2
0.5
2.375
I
IN
Input Current
PECL_CLK
LVC_CLK
3.135–3.465 2.375–2.625
3.135–3.465 2.375–2.625
3.465
100
100
240
I
CC
Quiescent Supply Current
(I
CCI
+
I
CCO
)
All Outputs Low
(I
CCL
)
All Outputs High
(I
CCH
)
2.625
3.465
2.625
225
mA
Symbol
Parameter
V
CC
O
=
3.3V
±
0.165V
Min
Typ
150
V
CC
O
=
2.5V
±
0.125V
Min
Typ
150
Units
Max
Max
f
max
t
PHL
t
PLH
Clock Frequency
Propagation Delay
MHz
PECL_CLK to O
n
LVC_CLK to O
n
Propagation Delay
2.5
2.9
3.5
3.8
5.3
2.5
2.9
3.7
4.0
5.5
ns
t
PHL
t
PLH
t
r
t
f
ns
SEL to O
n
Rise and Fall Time
V
CC
O
=
3.3V (0.8V to 2V)
V
CC
O
=
2.5V (0.7V to 1.6V)
Pin-to-Pin Output Skew
(Note 6)
600
ps
600
200
t
OSLH
t
OSHL
t
SK(PR)
t
pwo
200
ps
Part-to-Part Skew (Note 7)
Output Pulse Width (Note 8)
900
55
900
55
ps
%
45
45
Symbol
Parameter
Conditions
T
A
=
+
25
°
C
Typical
4
8
Units
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
V
CC
=
Open, V
I
=
0V or V
CC
V
I
=
0V or V
CC
, f
=
10 MHz, V
CC
=
3.3V
pF
pF
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