ISL59481 Datasheet, PDF (1/12 Pages) Intersil Corporation – Dual, 500MHz Triple, Multiplexing Amplifiers

®
Data Sheet
December 22, 2006
ISL59481
FN6208.3
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.
Ordering Information
PART NUMBER
PART
TAPE & PACKAGE PKG.
(Note)
MARKING REEL (Pb-free) DWG. #
ISL59481IRZ
ISL59481 IRZ
- 48 Ld Exposed L48.7x7B
Pad 7x7 QFN
ISL59481IRZ-T13 ISL59481 IRZ 13” 48 Ld Exposed L48.7x7B
Pad 7x7 QFN
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 S0-1, 2 EN1, EN2 HIZ1, 2
OUTPUT1, 2
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
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
• 500MHz bandwidth
• Supply current 16mA/CH
• Pb-free plus anneal (RoHS compliant)
Applications
• HDTV/DTV analog inputs
• Video projectors
• Computer monitors
• Set-top boxes
• Security video
• Broadcast video equipment
Related Literature
• Application Note AN1235 “ISL59481EVAL1 Evaluation
Board User’s Guide”
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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