1
FN7452.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL59442
1GHz, 4 x 1 Multiplexing Amplifier
The ISL59442 is a single-output 4:1 MUX-amp. The
MUX-amp has a fixed gain of 1 and a 1GHz bandwidth. The
device contains logic inputs for channel selection (S0, S1),
and a three-state output control (HIZ) for individual
selection of MUX amps that share a common video output
line. All logic inputs have pull-downs to ground and may be
left floating.
Pinout
ISL59442
(14 LD SO)
TOP VIEW
Features
1GHz (-3dB) Bandwidth (V
OUT
= 200mV
P-P
)
235MHz (-3dB) Bandwidth (V
OUT
= 1V
P-P
)
Slew Rate (R
L
= 525
,
V
OUT
= 5V) . . . . . . . . . . . . 1452V/
s
High Speed Three-state Output (HIZ)
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
HDTV/DTV Analog Inputs
Video Projectors
Computer Monitors
Set-top Boxes
Security Video
Broadcast Video Equipment
Functional Diagram
TABLE 1. TRUTH TABLE
HIZ
S1
S0
OUT
0
0
0
IN0
0
0
1
IN1
0
1
0
IN2
0
1
1
IN3
1
X
X
HIZ
Ordering Information
PART NUMBER PART MARKING PACKAGE
TAPE &
REEL
PKG.
DWG. #
ISL59442IB
59442IB
14 Ld SO
-
MDP0027
ISL59442IB-T7
59442IB
14 Ld SO
7"
MDP0027
ISL59442IB-T13
59442IB
14 Ld SO
13"
MDP0027
ISL59442IBZ
(Note)
59442IBZ
14 Ld SO
(Pb-free)
-
MDP0027
ISL59442IBZ-T7
(Note)
59442IBZ
14 Ld SO
(Pb-free)
7"
MDP0027
ISL59442IBZ-T13
(Note)
59442IBZ
14 Ld SO
(Pb-free)
13"
MDP0027
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements
of IPC/JEDEC J STD-020.
1
2
3
4
14
13
12
11
5
6
7
10
9
8
IN0
NIC
IN1
GND
IN2
NIC
IN3
V+
S0
S1
HIZ
OUT
NIC
V-
A=1
DECODE
IN0
IN1
IN2
IN3
S0
S1
EN0
EN1
EN3
EN2
HIZ
OUT
Data Sheet
September 21, 2005
2
FN7452.2
September 21, 2005
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage (V+ to V-). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- -0.5V, V+ +0.5V
Supply Turn-on Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/
s
Digital & Analog Input Current (Note 1) . . . . . . . . . . . . . . . . . . 50mA
Output Current (Continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7). . . . . .3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65C to +150C
Ambient Operating Temperature . . . . . . . . . . . . . . . . . -40C to 85C
Operating Junction Temperature . . . . . . . . . . . . . . .-40C to +125C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. If an input signal is applied before the supplies are powered up, the input current must be limited to these maximum values.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
V+ = +5V, V- = -5V, GND = 0V, T
A
= 25C, Input Video = 1V
P-P
& R
L
= 500
to GND, V
HIZ
= 0.8V, Unless
Otherwise Specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
GENERAL
I
S
Supply Current (V
OUT
= 0V)
No load, V
HIZ
= 0.8V
14.5
18
20
mA
No load, V
HIZ
= 2.0V
12
15.5
17.5
mA
V
OUT
Positive and Negative Output Swing
V
IN
=
3.5V, R
L
= 500
3.2
3.44
V
I
OUT
Output Current
R
L
= 10
to GND
80
120
180
mA
V
OS
Output Offset Voltage
-2
9
20
mV
Ib
Input Bias Current
V
IN
= 0V
-5
-2.5
-1
A
R
out
Output Resistance
HIZ = logic high, (DC)
1.4
M
HIZ = logic low, (DC)
0.2
R
IN
Input Resistance
V
IN
=
3.5V
10
M
A
CL
or A
V
Voltage Gain
V
IN
=
1.5V, R
L
= 500
0.999
1.001
1.003
V/V
I
TRI
Output Current in Three-state
V
OUT
= 0V
-35
6
35
A
LOGIC
V
H
Input High Voltage (Logic Inputs)
2
V
V
L
Input Low Voltage (Logic Inputs)
0.8
V
I
IH
Input High Current (Logic Inputs)
50
90
150
A
I
IL
Input Low Current (Logic Inputs)
2
A
AC GENERAL
-3dB BW
-3dB Bandwidth
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
1.0
GHz
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
235
MHz
0.1dB BW
0.1dB Bandwidth
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
100
MHz
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
35
MHz
dG
Differential Gain Error
NTC-7, R
L
= 150
0.01
%
dP
Differential Phase Error
NTC-7, R
L
= 150
0.02
+SR
Slew Rate
25% to 75%, V
OUT
= 5V,
R
L
= 525
, C
L
= 23.6pF
1452
V/
s
-SR
Slew Rate
25% to 75%, V
OUT
= 5V,
R
L
= 525
, C
L
= 23.6pF
1124
V/
s
ISL59442
3
FN7452.2
September 21, 2005
PSRR
Power Supply Rejection Ratio
DC, PSRR V+ and V- combined
V
=
4.5V to
5.5V
-50
-57
dB
ISO
Channel Isolation
f = 10MHz, Ch-Ch X-Talk and Off Isolation,
C
L
= 1.6pF
75
dB
SWITCHING CHARACTERISTICS
V
GLITCH
Channel-to-Channel Switching Glitch V
IN
= 0V, C
L
= 23.6pF, R
S
= 25
2
mV
P-P
HIZ Switching Glitch
V
IN
= 0V, C
L
= 23.6pF, R
S
= 25
135
mV
P-P
t
SW-L-H
Channel Switching Time Low to High 1.2V logic threshold to 10% movement of
analog output
30
ns
t
SW-H-L
Channel Switching Time High to Low 1.2V logic threshold to 10% movement of
analog output
28
ns
TRANSIENT RESPONSE
tr, tf
Rise & Fall Time, 10% to 90%
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
0.69
ns
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
1.4
ns
t
S
0.1% Settling Time
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
6.6
ns
t
PLH
Propagation Delay - Low to High,
10% to 10%
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
0.46
ns
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
0.92
ns
t
PHL
Propagation Delay- High to Low,
10% to 10%
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
0.52
ns
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
0.97
ns
O
S
Overshoot
V
OUT
= 200mV
P-P
, C
L
= 1.6pF
8.3
%
V
OUT
= 2V
P-P
, C
L
= 23.6pF, R
S
= 25
13.3
%
Electrical Specifications
V+ = +5V, V- = -5V, GND = 0V, T
A
= 25C, Input Video = 1V
P-P
& R
L
= 500
to GND, V
HIZ
= 0.8V, Unless
Otherwise Specified (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Typical Performance Curves
V
S
=
5V, R
L
= 500
to GND, T
A
= 25C, unless otherwise specified.
FIGURE 1. SMALL SIGNAL GAIN vs FREQUENCY vs C
L
FIGURE 2. SMALL SIGNAL GAIN vs FREQUENCY vs R
L
0.001
0.01
0.1
1
FREQUENCY (GHz)
NORMAL
IZED GAIN
(dB)
C
L
= 7.2pF
C
L
= 1.6pF
C
L
INCLUDES 1.6pF
BOARD CAPACITANCE
C
L
= 9.7pF
-5
-4
-3
-2
-1
0
1
2
3
4
5
1.5
V
OUT
= 200mV
P-P
C
L
= 5.5pF
0.001
0.01
0.1
1
1.5
-5
-4
-3
-2
-1
0
1
2
3
4
5
FREQUENCY (MHz)
N
O
RMAL
IZED GAIN
(dB)
R
L
= 1k
R
L
= 150
V
OUT
= 200mV
P-P
R
L
= 500
R
L
= 75
C
L
= 1.6pF
ISL59442
4
FN7452.2
September 21, 2005
FIGURE 3. LARGE SIGNAL GAIN vs FREQUENCY vs C
L
FIGURE 4. LARGE SIGNAL GAIN vs FREQUENCY vs R
L
FIGURE 5. SMALL SIGNAL 0.1dB GAIN vs FREQUENCY vs C
L
FIGURE 6. SMALL SIGNAL 0.1dB GAIN vs FREQUENCY vs R
L
FIGURE 7. LARGE SIGNAL 0.1dB GAIN vs FREQUENCY vs C
L
FIGURE 8. LARGE SIGNAL 0.1dB GAIN vs FREQUENCY vs R
L
Typical Performance Curves
V
S
=
5V, R
L
= 500
to GND, T
A
= 25C, unless otherwise specified. (Continued)
0.001
0.01
0.1
1
1.5
FREQUENCY (MHz)
NOR
M
ALIZED GAIN
(dB)
C
L
= 11.6pF
C
L
= 16.6pF
C
L
INCLUDES 1.6pF
BOARD CAPACITANCE
C
L
= 28.6pF
-5
-4
-3
-2
-1
0
1
2
3
4
5
V
OUT
= 2V
P-P
R
S
= 25
C
L
= 23.6pF
0.001
0.01
0.1
1
1.5
-5
-4
-3
-2
-1
0
1
2
3
4
5
FREQUENCY (MHz)
NOR
M
ALIZED GAIN
(dB)
R
L
= 1k
R
L
= 150
R
L
= 500
V
OUT
= 2V
P-P
C
L
= 23.6pF
R
S
= 25
R
L
= 75
0.001
0.01
0.1
1
1.5
FREQUENCY (MHz)
NORMALIZE
D
GAIN
(
d
B
)
C
L
= 1.6pF
C
L
= 5.5pF
C
L
INCLUDES 1.6pF
BOARD CAPACITANCE
C
L
= 9.7pF
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
V
OUT
= 200mV
P-P
C
L
= 7.2pF
0.001
0.01
0.1
1
1.5
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
0.1
0.2
FREQUENCY (MHz)
NORMALIZED GAIN
(dB)
R
L
= 1k
R
L
= 150
R
L
= 75
V
OUT
= 200mV
P-P
C
L
= 1.6pF
R
L
= 500
0.001
0.01
0.1
1
1.5
FREQUENCY (MHz)
N
O
RMAL
IZED GAIN
(dB)
C
L
INCLUDES 1.6pF
BOARD CAPACITANCE
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
V
OUT
= 2V
P-P
R
S
= 25
C
L
= 23.6pF
C
L
= 11.6pF
C
L
= 16.6pF
C
L
= 28.6pF
0.001
0.01
0.1
1
1.5
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
FREQUENCY (MHz)
N
O
RMAL
IZED GAIN
(dB)
R
L
= 1k
R
L
= 500
R
L
= 75
V
OUT
= 2V
P-P
C
L
= 23.6pF
R
S
= 25
R
L
= 150
ISL59442
5
FN7452.2
September 21, 2005
FIGURE 9. PSRR
CHANNELS
FIGURE 10. CROSSTALK
AND OFF ISOLATION
FIGURE 11. R
OUT
vs FREQUENCY
FIGURE 12. INPUT NOISE vs FREQUENCY
FIGURE 13. CHANNEL TO CHANNEL SWITCHING GLITCH
V
IN
= 0V, R
S
= 25, C
L
= 23.6pF
FIGURE 14.
C
HANNEL TO CHANNEL TRANSIENT RESPONSE
V
IN
= 1V, R
S
= 25, C
L
= 23.6pF
Typical Performance Curves
V
S
=
5V, R
L
= 500
to GND, T
A
= 25C, unless otherwise specified. (Continued)
FREQUENCY (MHz)
0
-10
-30
PSRR (dB)
0.3
1
10
100
1000
-50
-70
PSRR (V-)
PSRR (V+)
10
-20
-40
-60
-80
20
V
IN
= 200mV
P-P
C
L
= 23.6pF
R
S
= 25
FREQUENCY (MHz)
-20
-40
-60
(dB)
0.001
0.1
10
100
500
-80
-100
CROSSTALK
OFF ISOLATION
-30
-50
-70
-90
-110
-10
1
0.01
3 6
V
IN
= 1V
P-P
C
L
= 23.6pF
R
S
= 25
100
10
1
0.1
0.1
1
10
100
1000
FREQUENCY (MHz)
OUTPUT RES
I
S
T
ANCE
(
)
V
OUT
= 100mV
P-P
60
50
40
30
20
10
0
0.1
1
10
100
FREQUENCY (kHz)
IN
P
U
T VO
L
T
A
G
E N
O
I
S
E (n
V/
Hz
)
R
F
= 500
0
0
20ns/DIV
1V
/DI
V
20m
V/
D
I
V
V
OUT
S0, S1
0
0
20ns/DIV
1V
/DI
V
50
0mV
/
DI
V
V
OUT
S0, S1
ISL59442
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