ISL59446 Datasheet, PDF (1/13 Pages) Intersil Corporation – 500MHz Triple 4:1 Gain-of-2, Multiplexing Amplifier

®
Data Sheet
August 26, 2010
ISL59446
FN6261.1
500MHz Triple 4:1 Gain-of-2, Multiplexing
Amplifier
The ISL59446 is a triple channel 4:1 multiplexer featuring
integrated amplifiers with a fixed gain of 2, high slew-rate
and excellent bandwidth for video switching. The device
features a three-state output (HIZ), which allows the outputs
of multiple devices to be tied together. A power-down mode
(ENABLE) is included to turn off un-needed circuitry in power
sensitive applications. When the ENABLE pin is pulled high,
the part enters a power-down mode and consumes just
14mW.
Ordering Information
TEMP
PART NUMBER PART RANGE
(Note)
MARKING (°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL59446IRZ* 59446 IRZ -40 to +85 32 Ld QFN L32.5x6A
ISL59446IRZ-T7* 59446 IRZ -40 to +85 32 Ld QFN L32.5x6A
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach materials,
and 100% matte tin plate plus anneal (e3 termination finish, which is
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.
Pinout
IN1A 1
NIC 2
IN1B 3
NIC 4
IN1C 5
GNDB 6
IN2A 7
NIC 8
IN2B 9
x2
x2
THERMAL
PAD
x2
25 ENABLE
24 NIC
23 V+
22 OUTA
21 V-
20 OUTB
19 OUTC
18 S0
17 S1
THERMAL PAD INTERNALLY CONNECTED TO V-. PAD MUST BE
TIED TO V-
NIC = NO INTERNAL CONNECTION
Features
• 510MHz Bandwidth into 150Ω
• ±1600V/µs Slew Rate
• High Impedance Buffered Inputs
• Internally Set Gain-of-2
• High Speed Three-State Outputs (HIZ)
• Power-Down Mode (ENABLE)
• ±5V Operation
• Supply Current 11mA/ch
• Pb-Free (RoHS Compliant)
Applications
• HDTV/DTV Analog Inputs
• Video Projectors
• Computer Monitors
• Set-top Boxes
• Security Video
• Broadcast Video Equipment
TABLE 1. CHANNEL SELECT LOGIC TABLE ISL59446
S1
S0 ENABLE HIZ
OUTPUT
0
0
0
0
IN0 (A, B, C)
0
1
0
0
IN1 (A, B, C)
1
0
0
0
IN2 (A, B, C)
1
1
0
0
IN3 (A, B, C)
X
X
1
X
Power-Down
X
X
0
1
High Z
Functional Diagram (Each Channel)
S0
S1
DECODE
EN0
EN1 ^{IN0(A, B, C)}
IN1(A, B, C)
EN2 ^{IN2(A, B, C)}
-
OUT
+
IN3(A, B, C)
EN3
HIZ
ENABLE
AMPLIFIER BIAS
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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