ha4201 Intersil Corporation, ha4201 Datasheet - Page 3

• Manufacturer Part Number: ha4201
• Description: 480mhz, 1x1 Video Crosspoint Switch With Tally Output
• Manufacturer: Intersil Corporation

Electrical Specifications
NOTE:
AC Test Circuit
NOTE: C
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.
±0.1dB Flat Bandwidth
Input Resistance
Input Capacitance
Enabled Output Resistance
Disabled Output Capacitance
Differential Gain
Differential Phase
Off Isolation
Slew Rate
(1.5V
Total Harmonic Distortion (Note 3)
Disabled Output Resistance
3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
V
IN
75Ω
P-P
, +SR/-SR)
L
HA4201
= C
PARAMETER
X
+ Test Fixture Capacitance.
R
S
500Ω
C
X
400Ω
3
V
SUPPLY
10kΩ
R
R
R
V
4.43MHz, (Note 3)
4.43MHz, (Note 3)
1V
R
R
R
+
-
510Ω
EN
S
S
S
S
S
S
= ±5V, R
P-P
= 82Ω, C
= 43Ω, C
= 36Ω, C
= 82Ω, C
= 43Ω, C
= 36Ω, C
HFA1100
= 0.8V
, 100MHz, V
TEST CONDITIONS
75Ω
L
L
L
L
L
L
L
= 10kΩ, V
= 10pF
= 15pF
= 21pF
= 10pF
= 15pF
= 21pF
V
EN
OUT
= 0.8V, R
EN
HA4201
= 2.0V, Unless Otherwise Specified (Continued)
L
= 10Ω
Application Information
General
The HA4201 is a 1x1 crosspoint switch that is ideal for the
matrix element in small, high input-to-output isolation
switchers and routers. It also excels as an input buffer for
routers with a large number of outputs (i.e. each input must
connect to a large number of outputs) and delivers
performance superior to most video amplifiers at a fraction of
the cost. As an input buffer, the HA4201’s low input
capacitance and high input resistance provide excellent
video terminations when used with an external 75Ω resistor.
This crosspoint contains no feedback or gain setting
resistors, so the output is a true high impedance load when
the IC is disabled (EN = 0).
Frequency Response
Most applications utilizing the HA4201 require a series
output resistor, R
capacitance, C
as C
table on page 2), so give careful consideration to component
placement to minimize trace length. As an example, -3dB
bandwidth decreases to 160MHz for C
In big matrix configurations where C
frequency response is obtained by cascading two levels of
crosspoints in the case of multiplexed outputs (see Figure 2),
or distributing the load between two drivers if C
bussing and subsequent stage input capacitance.
L
increases (as shown in the Electrical Specification
TEMP.
(°C)
Full
Full
Full
Full
Full
Full
Full
25
25
25
25
25
25
25
25
L
, driven. Bandwidth and slew rate degrade
S
, to tune the response for the specific load
MIN
200
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1750/1770
1460/1360
1410/1360
TYP
0.01
0.01
0.01
250
175
170
400
1.0
2.0
15
85
12
L
is large, better
L
= 100pF, R
MAX
0.02
0.02
0.1
-
-
-
-
-
-
-
-
-
-
-
-
L
is due to
March 8, 2007
S
Degrees
UNITS
MHz
MHz
MHz
V/μs
V/μs
V/μs
= 0Ω .
FN3680.6
MΩ
kΩ
pF
pF
dB
%
%
Ω