ISL59424, ISL59445
1GHz Triple Multiplexing Amplifiers
The ISL59424, ISL59445 are 1GHz bandwidth multiplexing amplifier...
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...