HA4314B
Electrical Specifications
PARAMETER
±0.1dB
Flat Bandwidth
V
SUPPLY
=
±5V,
R
L
= 10kΩ, V
CS
= 0.8V, Unless Otherwise Specified
(Continued)
TEST CONDITIONS
R
S
= 50Ω, C
L
= 10pF
R
S
= 20Ω, C
L
= 20pF
R
S
= 16Ω, C
L
= 36pF
R
S
= 13Ω, C
L
= 49pF
Input Resistance
Input Capacitance
Enabled Output Resistance
Disabled Output Capacitance
Differential Gain
Differential Phase
Off Isolation
Crosstalk Rejection
Slew Rate (1.5V
P-P
, +SR/-SR)
V
CS
= 2.0V
4.43MHz, Note 3
4.43MHz, Note 3
1V
P-P
, 100MHz, V
CS
= 2.0V,
R
L
= 10Ω
1V
P-P
, 30MHz
R
S
= 50Ω, C
L
= 10pF
R
S
= 20Ω, C
L
= 20pF
R
S
= 16Ω, C
L
= 36pF
R
S
= 13Ω, C
L
= 49pF
Total Harmonic Distortion
Disabled Output Resistance
NOTES:
3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
4. Units are 100% tested at 25
o
C; Guaranteed but not tested at 0
o
C and 70
o
C.
10MHz, R
L
= 1kΩ, Note 3
V
CS
= 2.0V
(NOTE 4)
TEMP. (
o
C)
25
25
25
25
Full
Full
Full
Full
25
25
Full
Full
25
25
25
25
Full
Full
MIN
-
-
-
-
200
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
100
100
85
75
400
1.5
15
2.5
0.01
0.01
70
80
1425/1450
1010/1010
725/750
600/650
0.01
12
MAX
-
-
-
-
-
-
-
-
0.02
0.02
-
-
-
-
-
-
0.1
-
UNITS
MHz
MHz
MHz
MHz
kΩ
pF
Ω
pF
%
Degrees
dB
dB
V/µs
V/µs
V/µs
V/µs
%
MΩ
AC Test Circuit
500Ω
400Ω
510Ω
Keep input and output traces as short as possible, because
trace inductance and capacitance can easily become the
performance limiting items.
Application Information
HA4314
V
IN
75Ω
C
X
R
S
General
-
10kΩ
75Ω
V
OUT
HFA1100
+
NOTE:
C
L
= C
X
+ 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.
The HA4314B is a 4 x 1 crosspoint switch that is ideal for the
matrix element of high performance switchers and routers.
This crosspoint’s low input capacitance and high input
resistance provide excellent video terminations when used
with an external 75Ω resistor. Nevertheless, if several
HA4314B inputs are connected together, the use of an input
buffer should be considered (see Figure 1). This crosspoint
contains no feedback or gain setting resistors, so the output
is a true high impedance load when the IC is disabled
(CS = 1).
Ground Connections
All GND pins are connected to a common point on the die,
so any one of them will suffice as the functional GND
connection. For the best isolation and crosstalk rejection,
however, all GND pins must connect to the GND plane.
Frequency Response
Most applications utilizing the HA4314B require a series
output resistor, R
S
, to tune the response for the specific load
3
INTERSIL [ INTERSIL CORPORATION ]
