DATASHEET
ISL59446 FN6261
Rev 3.00
July 31, 2014 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 unneeded circuitry in power sensitive
applications. When the ENABLE pin is pulled high, the part enters
a power-down mode and consumes just 14mW.
TABLE 1. CHANNEL SELECT LOGIC TABLE ISL59446 Features 510MHz bandwidth into 150О© В±1600V/Вµs slew rate High impedance buffered inputs Internally set gain-of-2 High speed three-state outputs (HIZ) Power-down mode (ENABLE) В±5V operation S1 S0 ENABLE HIZ OUTPUT 0 0 0 0 IN0 (A, B, C) Supply current 11mA/ch 0 1 0 0 IN1 (A, B, C) Pb-Free (RoHS compliant) 1 0 0 0 IN2 (A, B, C) Applications 1 1 0 0 IN3 (A, B, C) HDTV/DTV analog inputs X X 1 X Power-Down Video projectors X X 0 1 High Z Computer monitors Set-top boxes Security video Broadcast video equipment EN0
S0
EN1 IN0 (A, B, C) IN1 (A, B, C) S1
DECODE
EN2 + OUT IN2 (A, B, C) IN3 (A, B, C)
EN3 AMPLIFIER BIAS
HIZ
ENABLE FIGURE 1. FUNCTIONAL DIAGRAM (EACH CHANNEL) FN6261 Rev 3.00
July 31, 2014 Page 1 of 14 ISL59446 -40 to +85 32 Ld QFN L32.5x6A ISL59446IRZ-T7
(Note 1) 59446 IRZ -40 to +85 32 Ld QFN L32.5x6A 26 HIZ 59446 IRZ 27 IN0C ISL59446IRZ 28 NIC PKG.
DWG. # 29 IN0B PACKAGE …
