參數(shù)資料
型號: B9948CA
英文描述: TWELVE DISTRIBUTED-OUTPUT CLOCK DRIVER|TQFP|32PIN|PLASTIC
中文描述: 第十二章分布式輸出時鐘驅(qū)動器| TQFP封裝| 32腳|塑料
文件頁數(shù): 3/6頁
文件大小: 60K
代理商: B9948CA
B9948
Document #: 38-07079 Rev. *B
Page 3 of 6
Maximum Ratings
Maximum Input Voltage Relative to V
SS
:............ V
SS
0.3V
Maximum Input Voltage Relative to V
DD
:.............V
DD
+ 0.3V
Storage Temperature: .................................-65
°
C to + 150
°
C
Operating Temperature:.................................-40
°
C to +85
°
C
Maximum ESD Protection.............................................. 2 KV
Maximum Power Supply: ................................................5.5V
Maximum Input Current:
..................................................±
20 mA
This device contains circuitry to protect the inputs against
damage due to high static voltages or electric field; however,
precautions should be taken to avoid application of any volt-
age higher than the maximum rated voltages to this circuit. For
proper operation, V
in
and V
out
should be constrained to the
range:
V
SS
< (V
in
or V
out
) < V
DD
Unused inputs must always be tied to an appropriate logic volt-
age level (either V
SS
or V
DD
).
Notes:
2.
3.
Inputs have pull-up resistors that effect input current, PECL_CLK# has a pull-down resistor.
The V
is the difference from the most positive side of the differential input signal. Normal operation is obtained when the
High
input is within the V
CMR
range and the input lies within the V
specification.
Driving series or parallel terminated 50
(or 50
to V
DD
/2) transmission lines.
4.
DC Parameters:
V
DDC
= 3.3V ±10%, V
DD
= 3.3V ±10%, T
A
=
40
°
C to +85
°
C
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
V
IL
Input Low Voltage
PECL_CLK, Single Ended
1.49
1.825
V
All other inputs
V
SS
2.135
0.8
V
IH
Input High Voltage
PECL_CLK, Single Ended
2.42
V
All other inputs
2.0
V
DD
100
I
IL
I
IH
V
PP
Input Low Current (@V
IL
= V
SS
)
Input High Current (@V
IL
=V
DD
)
Peak-to-Peak Input Voltage
PECL_CLK
Note 2
μA
100
μA
Note 3
300
1000
mV
V
CMR
V
OL
V
OH
I
DD
C
in
Common Mode Range PECL_CLK
V
DD
2.0
V
DD
0.6
0.4
V
Output Low Voltage
I
OL
= 20 mA, Note 4
I
OH
=
20 mA, V
DDC
= 3.3V, Note 4
All V
DDC
and V
DD
V
Output High Voltage
2.5
V
Quiescent Supply Current
1
2
mA
Input Capacitance
4
pF
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