ISL59481
S
EW DESIGN
NDED FOR N
ME
ACEMENT
NOT RECOM
NDED REPL
ME
Center at
NO RECOM
ical Support om/tsc
Techn
contact our
w.intersil.c
ERSIL or ww
1-888-INT
DATASHEET
FN6208
Rev 4.00
May 18, 2007
Dual, 500MHz Triple, Multiplexing Amplifiers
The ISL59481 contains two independent unity gain triple 4:1
MUX amplifiers that feature high slew rate and excellent
bandwidth for RGB video switching. Each RGB 4:1 MUX
contains binary coded, channel select logic inputs (S0, S1),
and separate logic inputs for High Impedance output (HIZ)
and power-down (EN) modes. The HIZ state presents a high
impedance at the output so that both RGB MUX outputs can
be wired together to form an 8:1 RGB MUX amplifier or they
can be used in R-R, G-G, and B-B pairs to form a 4:1
differential input/output MUX. Separate power-down mode
controls (EN1, EN2) are included to turn off unused circuitry
in power sensitive applications. With both EN pins pulled
high, the ISL59481 enters a standby power mode -
consuming just 36mW.
Features
• Dual, triple 4:1 multiplexers for RGB
• Externally configurable for various video MUX circuits
including
- 8:1 RGB MUX
- Two separate 4:1 RGB MUX
- 4:1 differential RGB video MUX
• Internally set gain-of-1
• High impedance outputs (HIZ)
• Power-down mode (EN)
• ±5V operation
• ±870V/µs slew rate
Ordering Information
PART NUMBER
(Note)
ISL59481IRZ
PART
MARKING
ISL59481 IRZ
TAPE &
REEL
-
13”
PACKAGE
(Pb-free)
PKG.
DWG. #
• 500MHz bandwidth
• Supply current 16mA/CH
• Pb-free plus anneal (RoHS compliant)
48 Ld Exposed L48.7x7B
Pad 7x7 QFN
48 Ld Exposed L48.7x7B
Pad 7x7 QFN
ISL59481IRZ-T13 ISL59481 IRZ
ISL59481EVAL1Z Evaluation PCB
Applications
• HDTV/DTV analog inputs
• Video projectors
• Computer monitors
• Set-top boxes
• Security video
• Broadcast video equipment
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.
TABLE 1. CHANNEL SELECT LOGIC TABLE ISL59481
S1-1, 2
0
0
1
1
X
X
S0-1, 2
0
1
0
1
X
X
EN1, EN2
0
0
0
0
1
0
HIZ1, 2
0
0
0
0
X
1
OUTPUT1, 2
IN0 (A, B, C)
IN1 (A, B, C)
IN2 (A, B, C)
IN3 (A, B, C)
Power-down
High Z
Related Literature
• Application Note AN1235 “ISL59481EVAL1 Evaluation
Board User’s Guide”
FN6208 Rev 4.00
May 18, 2007
Page 1 of 12
ISL59481
Pinout
ISL59481
(48 LD QFN)
TOP VIEW
46 IN3C1
45 IN3B1
44 IN3A1
37 IN1B1
36 IN2A2
0
42 IN2C1
41 IN2B1
40 IN2A1
OUTC1 1
OUTB1 2
+1
38 INIC1
43 GND
39 GND
48 S0-1
47 S1-1
35 GND
+1
0
V1- 3
OUTA1 4
V1+ 5
EN1 6
HIZ1 7
IN0C1 8
IN0B1 9
IN0A1 10
GND 11
IN1A1B 12
+1
34 IN1C2
33 IN1B2
0
32 IN1A2
THERMAL
PAD
31 GND
30 IN0A2
29 IN0B2
28 IN0C2
27 HIZ2
0
0
0
26 EN2
25 V2+
+1
+1
+1
S1-2 19
S0-2 20
OUTC2 21
OUTB2 22
V2- 23
THERMAL PAD INTERNALLY
CONNECTED TO V-
PAD MUST BE TIED TO V-
Functional Diagram ISL59481
EN0-1
S0-1
EN1-1
S1-1
DECODE1
IN0(A1, B1, C1)
IN1(A1, B1, C1)
EN2-1
EN3-1
IN2(A1, B1, C1)
IN3(A1, B1, C1)
OUT(A1, B1, C1)
AMPLIFIER1 BIAS
HIZ1
EN1
EN0-2
S0-2
EN1-2
S1-2
DECODE2
IN0(A2, B2, C2)
IN1(A2, B2, C2)
EN2-2
EN3-2
IN2(A2, B2, C2)
IN3(A2, B2, C2)
OUT(A2, B2, C2)
AMPLIFIER2 BIAS
HIZ2
EN2
FN6208 Rev 4.00
May 18, 2007
OUTA2 24
IN2B2 13
IN2C2 14
GND 15
IN3A2 16
IN3B2 17
IN3C2 18
Page 2 of 12
ISL59481
Absolute Maximum Ratings
(T
A
= +25°C)
Supply Voltage (V+ to V-). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- -0.5V, V+ +0.5V
Supply Turn-on Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/µs
Digital and Analog Input Current (Note 1) . . . . . . . . . . . . . . . . 50mA
Output Current (Continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7). . . .2500V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V
Thermal Information
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature . . . . . . . . . . . . . . .-40°C to +125°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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
PARAMETER
GENERAL
V1+ = V2+ = +5V, V1- = V2- = -5V, GND = 0V, T
A
= +25°C, Input Video = 1V
P-P
and R
L
= 500 to GND,
C
L
= 5pF unless otherwise specified.
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
+
I
S
Enabled
-
I
S
Enabled
+I
S
Disabled
-I
S
Disabled
V
OUT
I
OUT
V
OS
Ib
R
OUT
R
OUT
R
IN
A
CL
or A
V
I
HIZ
LOGIC
V
IH
V
IL
I
IH
I
IL
AC GENERAL
t
S
PSRR
ISO
dG
dP
BW
Enabled Supply Current
Enabled Supply Current
Disabled Supply Current
Disabled Supply Current
Positive and Negative Output Swing
Output Current
Output Offset Voltage
Input Bias Current
HIZ Output Resistance
Enabled Output Resistance
Input Resistance
Voltage Gain
Output Current in High Impedance state
No load, V
IN
= 0V, EN1, EN2 Low
No load, V
IN
= 0V, EN1, EN2 Low
No load, V
IN
= 0V, EN1, EN2 High
No load, V
IN
= 0V, EN1, EN2 High
V
IN
=
±
3.5V, R
L
= 500
R
L
= 10 to GND
V
IN
= 0V
V
IN
= 0V
HIZ = Logic High
HIZ = Logic Low
V
IN
=
±
3.5V
V
IN
=
±
1.5V, R
L
= 500
V
OUT
= 0V
75
-96
5
-250
3.1
80
-10
-10
92
-92
6.2
-20
3.4
135
100
-68
8
mA
mA
mA
µA
|V|
|mA|
14
-2
1.2
0.1
10
+10
mV
µA
M
M
0.98
0.99
1.2
1.02
V/V
µA
Input High Voltage (Logic Inputs)
Input Low Voltage (Logic Inputs)
Input High Current (Logic Inputs)
Input Low Current (Logic Inputs)
V
H
= 5V
V
L
= 0V
2
0.8
215
-10
270
-1
320
+10
V
V
µA
µA
0.1% Settling Time
Power Supply Rejection Ratio
Channel Isolation
Differential Gain Error
Differential Phase Error
-3dB Bandwidth
R
L
= 500C
L
= 1.5pF, Step = 1V
DC, PSRR V+ and V- combined
f = 10MHz, Ch to Ch Crosstalk and Off
Isolation, C
L
= 1.5pF
NTC-7, R
L
= 150, C
L
= 1.5pF
NTC-7, R
L
= 150, C
L
= 1.5pF
C
L
= 1.5pF
52
10
56
75
0.02
0.02
500
ns
dB
dB
%
°
MHz
FN6208 Rev 4.00
May 18, 2007
Page 3 of 12
ISL59481
Electrical Specifications
PARAMETER
FBW
V1+ = V2+ = +5V, V1- = V2- = -5V, GND = 0V, T
A
= +25°C, Input Video = 1V
P-P
and R
L
= 500 to GND,
C
L
= 5pF unless otherwise specified.
(Continued)
DESCRIPTION
0.1dB Bandwidth
0.1dB Bandwidth
SR
Slew Rate
C
L
= 1.5pF
C
L
= 4.7pF
25% to 75%, R
L
= 150, Input Enabled,
C
L
= 1.5pF
CONDITIONS
MIN
TYP
60
120
MAX
UNIT
MHz
MHz
V/µs
±
870
SWITCHING CHARACTERISTICS
V
GLITCH
Channel-to-Channel Switching Glitch
EN Switching Glitch
HIZ Switching Glitch
t
SW-L-H
t
SW-H-L
tr, tf
tpd
Channel Switching Time Low to High
Channel Switching Time High to Low
Rise and Fall Time
Propagation Delay
V
IN
= 0V C
L
= 1.5pF
V
IN
= 0V C
L
= 1.5pF
V
IN
= 0V C
L
= 1.5pF
1.2V logic threshold to 10% movement of
analog output
1.2V logic threshold to 10% movement of
analog output
10% to 90%
10% to 10%
20
200
200
18
20
1.1
0.9
mV
P-P
mV
P-P
mV
P-P
ns
ns
ns
ns
Typical Performance Curves
V
S
= ±5V, R
L
= 500 to GND, T
A
= +25°C, unless otherwise specified.
4
SOURCE POWER = -14dBm
2 INTO A 50INPUT IMPEDANCE
NORMALIZED GAIN (dB)
0
NORMALIZED (dB)
-2
-4
-6
-8
-10
-12
-14
-16
1M
C
L
INCLUDES 0.3pF
BOARD CAPACITANCE
10M
100M
FREQUENCY (Hz)
1G
C
L
= 12.3pF
C
L
= 4.6pF
C
L
= 2.3pF
C
L
= 1.5pF
C
L
= 7.3pF
C
L
= 6.3pF
1
0
-1
R
L
= 1k
-2
-3
-4
-5
SOURCE POWER = -10dBm
INTO A 50INPUT IMPEDANCE
R
L
= 0.5k
R
L
= 150
R
L
= 100
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 1. GAIN vs FREQUENCY vs C
L
FIGURE 2. GAIN vs FREQUENCY vs R
L
0.2
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
SOURCE POWER = -10dBm
0.1 INTO A 50INPUT IMPEDANCE
OUTPUT RESISTANCE ()
NORMALIZED GAIN (dB)
100
C
L
= 4.7pF
10
C
L
= 1.5pF
1
C
L
INCLUDES 0.3pF
BOARD CAPACITANCE
1M
10M
100M
FREQUENCY (Hz)
1G
0.1
0.1M
1M
10M
FREQUENCY (Hz)
100M
1G
FIGURE 3. 0.1dB GAIN vs FREQUENCY
FIGURE 4. R
OUT
vs FREQUENCY
FN6208 Rev 4.00
May 18, 2007
Page 4 of 12
ISL59481
Typical Performance Curves
V
S
= ±5V, R
L
= 500 to GND, T
A
= +25°C, unless otherwise specified.
0.8
0.6
0.4
0.2
V
OUT
(V)
0.0
-0.2
-0.4
-0.6
-0.8
TIME (5ns/DIV)
(dB)
R
L
= 500
C
L
= 1.5pF
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
0.1M
1M
V
IN
= 0.633V
P-P
(Continued)
CROSSTALK
INPUT X TO OUTPUT Y
OFF ISOLATION
INPUT X TO OUTPUT X
10M
FREQUENCY (Hz)
100M
1G
FIGURE 5. TRANSIENT RESPONSE
FIGURE 6. CROSSTALK AND OFF ISOLATION
-40
-45
-50
1V/DIV
-55
PSSR (dB)
-60
-65
-70
-75
-80
-85
-90
0.1M
1M
FREQUENCY (Hz)
10M
20mV/DIV
PSRR (V+)
0
V
OUT
A, B, C
20ns/DIV
0
PSRR (V-)
S0, S1
50
TERM.
V
IN
= 0V
FIGURE 7. PSRR CHANNELS A, B, C
FIGURE 8. CHANNEL-TO-CHANNEL SWITCHING GLITCH
(V
IN
= 0V)
S0, S1
50
TERM.
1V/DIV
V
IN
= 1V
ENABLE
50
TERM.
1V/DIV
V
IN
= 0V
0
100mV/DIV
0
0.5V/DIV
V
OUT
A, B, C
0
20ns/DIV
0
V
OUT
A, B, C
20ns/DIV
FIGURE 9. CHANNEL TO CHANNEL TRANSIENT RESPONSE
(V
IN
= 1V)
FIGURE 10. ENABLE SWITCHING GLITCH (V
IN
= 0V)
FN6208 Rev 4.00
May 18, 2007
Page 5 of 12
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