1GHz Triple Multiplexing Amplifiers - Renesas
Description
ISL59424, ISL59445
1GHz Triple Multiplexing Amplifiers
The ISL59424, ISL59445 are 1GHz bandwidth multiplexing amplifiers designed primarily for video input switching.
These MUX-amps exhibit a fixed gain of 1 and also feature a high speed three-state 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 EN pin, when pulled high, sets the ISL59424, ISL59445 in to low current mode-consuming just 15mW.
An added feature in the ISL59424 is a latch enable function (LE) that allows independent logic control using a common logic bus.
When
LE is high the last logic state is preserved.
TABLE 1.
CHANNEL SELECT LOGIC TABLE ISL59424
S0 ENABLE
HIZ
LE
OUTPUT
00
0 0 INO (A, B, C)
10
0 0 IN1 (A, B, C)
X1
X X Power Down
X0 X0
1X
High Z
0 1 Last S0 State Preserved
TABLE 2.
CHANNEL SELECT LOGIC TABLE ISL59445
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...
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