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HA4244 Datasheet, PDF (3/6 Pages) Intersil Corporation – 480MHz, 1 x 1 Video Crosspoint Switch with Synchronous Enable
HA4244
Electrical Specifications VSUPPLY = ±5V, RL = 10kΩ, VEN = 2.0V, Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP.
(oC)
MIN
HA4244
TYP
AC CHARACTERISTICS
Insertion Loss
-3dB Bandwidth
±0.1dB Flat Bandwidth
Input Resistance
1VP-P
RS = 82Ω, CL = 10pF
RS = 43Ω, CL = 15pF
RS = 36Ω, CL = 21pF
RS = 82Ω, CL = 10pF
RS = 43Ω, CL = 15pF
RS = 36Ω, CL = 21pF
Full
-
25
-
25
-
25
-
25
-
25
-
25
-
Full
200
0.04
480
380
370
250
175
170
400
Input Capacitance
Full
-
1.0
Enabled Output Resistance
Full
-
15
Disabled Output Capacitance
Differential Gain
VEN = 0.8V
4.43MHz, Note 3
Full
-
25
-
2.0
0.01
Differential Phase
4.43MHz, Note 3
25
-
0.01
Off Isolation
Slew Rate
(1.5VP-P, +SR/-SR)
Total Harmonic Distortion
1VP-P, 100MHz, VEN = 0.8V, RL = 10Ω
Full
RS = 82Ω, CL = 10pF
25
RS = 43Ω, CL = 15pF
25
RS = 36Ω, CL = 21pF
25
Note 3
Full
-
85
-
1750/1770
-
1460/1360
-
1410/1360
-
0.01
Disabled Output Resistance
Full
-
12
NOTE:
3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
MAX
0.05
-
-
-
-
-
-
-
-
-
-
0.02
0.02
-
-
-
-
0.1
-
UNITS
dB
MHz
MHz
MHz
MHz
MHz
MHz
kΩ
pF
Ω
pF
%
Degrees
dB
V/µs
V/µs
V/µs
%
MΩ
AC Test Circuit
VIN
75Ω
HA4244
500Ω 400Ω
RS
510Ω
-
75Ω
+
HFA1100
CX 10kΩ
VOUT
NOTE: CL = CX + Test Fixture Capacitance.
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 (10µF) tantalum in parallel with a small value
(0.1µF) 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.
3