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參數資料
| 型號： | HA4244 |
| 廠商： | Intersil Corporation |
| 英文描述： | 480MHz, 1 x 1 Video Crosspoint Switch with Synchronous Enable |
| 中文描述： | 480MHz，1 × 1視頻交叉點開關同步啟用 |
| 文件頁數： | 3/6頁 |
| 文件大小： | 145K |
| 代理商： | HA4244 |
3
AC Test Circuit
PC Board Layout
The frequency response of this circuit depends greatly on
the care taken in designing the PC board.
The use of low
inductance components such as chip resistors and chip
capacitors is strongly recommended, while a solid
ground plane is a must!
Attention should be given to decoupling the power supplies.
A large value (10
μ
F) tantalum in parallel with a small value
(0.1
μ
F) chip capacitor works well in most cases.
Keep input and output traces as short as possible, because
trace inductance and capacitance can easily become the
performance limiting items.
AC CHARACTERISTICS
Insertion Loss
1V
P-P
Full
-
0.04
0.05
dB
-3dB Bandwidth
R
S
= 82
, C
L
= 10pF
25
-
480
-
MHz
R
S
= 43
, C
L
= 15pF
25
-
380
-
MHz
R
S
= 36
, C
L
= 21pF
25
-
370
-
MHz
±
0.1dB Flat Bandwidth
R
S
= 82
, C
L
= 10pF
25
-
250
-
MHz
R
S
= 43
, C
L
= 15pF
25
-
175
-
MHz
R
S
= 36
, C
L
= 21pF
25
-
170
-
MHz
Input Resistance
Full
200
400
-
k
Input Capacitance
Full
-
1.0
-
pF
Enabled Output Resistance
Full
-
15
-
Disabled Output Capacitance
V
EN
= 0.8V
Full
-
2.0
-
pF
Differential Gain
4.43MHz, Note 3
25
-
0.01
0.02
%
Differential Phase
4.43MHz, Note 3
25
-
0.01
0.02
Degrees
Off Isolation
1V
P-P
, 100MHz, V
EN
= 0.8V, R
L
= 10
Full
-
85
-
dB
Slew Rate
(1.5V
P-P
, +SR/-SR)
R
S
= 82
, C
L
= 10pF
25
-
1750/1770
-
V/
μ
s
R
S
= 43
, C
L
= 15pF
25
-
1460/1360
-
V/
μ
s
R
S
= 36
, C
L
= 21pF
25
-
1410/1360
-
V/
μ
s
Total Harmonic Distortion
Note 3
Full
-
0.01
0.1
%
Disabled Output Resistance
Full
-
12
-
M
NOTE:
3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
Electrical Specifications
V
SUPPLY
=
±
5V, R
L
= 10k
, V
EN
= 2.0V, Unless Otherwise Specified
(Continued)
PARAMETER
TEST CONDITIONS
TEMP.
(
o
C)
HA4244
UNITS
MIN
TYP
MAX
500
400
510
75
V
OUT
V
IN
75
R
S
HA4244
HFA1100
+
-
C
X
10k
NOTE: C
L
= C
X
+ Test Fixture Capacitance.
HA4244
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