ISL59421
®
Data Sheet
September 21, 2005
FN7458.1
865MHz Multiplexing Amplifier
Features
• 865MHz (-3dB) Bandwidth (A = 1, V
The ISL59421 is a 865MHz bandwidth multiplexing amplifier
designed primarily for video switching. This Mux amp has
user-settable gain and also features a high speed three-
state function to enable the output of multiple devices to be
wired together. All logic inputs have pull-downs to ground
and may be left floating. The ENABLE pin, when pulled high,
sets the ISL59421 to the low current power-down mode for
power sensitive applications - consuming just 5mW.
= 100mV
)
P-P
V
OUT
• 350MHz (-3dB) Bandwidth (A = 2, V
V
= 2V )
P-P
OUT
• Slew Rate (A = 1, R = 500Ω, V
= 4V) . . . . .1417V/µs
= 5V) . . . . .2008V/µs
V
L
OUT
OUT
• Slew Rate (A = 2, R = 500Ω, V
V
L
• Adjustable Gain
• High Speed Three-state Output (HIZ)
TABLE 1. CHANNEL SELECT LOGIC TABLE
• Low Current Power-Down . . . . . . . . . . . . . . . . . . . . .5mW
• Pb-Free Plus Anneal Available (RoHS Compliant)
S0
0
ENABLE
HIZ
0
OUTPUT
IN0
0
0
1
0
Applications
• HDTV/DTV Analog Inputs
1
0
IN1
X
X
Power Down
High Z
• Video Projectors
X
1
• Computer Monitors
• Set-top Boxes
Pinout
ISL59421
• Security Video
(10 Ld MSOP)
• Broadcast Video Equipment
TOP VIEW
S0
GND
IN-
1
2
3
4
5
10
9
Functional Diagram
OUT
-
+
IN0
8
V+
V-
IN-
S0
EN0
ENABLE
IN1
7
OUT
-
+
IN0
IN1
HIZ
6
DECODE
EN1
AMPLIFIER BIAS
Ordering Information
HIZ
PART
TAPE &
REEL
PKG.
PART NUMBER MARKING PACKAGE
DWG. #
ISL59421IU
BBRAA 10 Ld MSOP
BBRAA 10 Ld MSOP
BBRAA 10 Ld MSOP
-
7”
13”
-
MDP0043
MDP0043
MDP0043
MDP0043
ENABLE
ISL59421IU-T7
ISL59421IU-T13
ENABLE pin must be low in order to activate the HIZ state
ISL59421IUZ
(Note)
BBSAA 10 Ld MSOP
(Pb-free)
ISL59421IUZ-T7
(Note)
BBSAA 10 Ld MSOP
(Pb-free)
7”
MDP0043
MDP0043
ISL59421IUZ-T13 BBSAA 10 Ld MSOP
(Note) (Pb-free)
13”
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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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