ISL59451 Datasheet, PDF (13/17 Pages) Intersil Corporation – Triple 4:1 DC Restored Single Supply Video Multiplexing Amplifier

ISL59451
Pin Descriptions (Continued)
ISL59451
(32 LD QFN)
EQUIVALENT
PIN NAME CIRCUIT
DESCRIPTION
26
HIZ
Circuit 2 Output disable (active high). Internal pull-down resistor ensures the device will be active with
no connection to this pin. A logic high puts the outputs in a high impedance state. Use this
state to control logic when more than one MUX-amp share the same video output line.
During high impedance state, there is a 2kΩ pull-down present at each output. If left floating,
an internal pull-down resistor pulls this pin low (300kΩ pull-down).
29
R0
Circuit 1 Channel 0 Red/Pr/Chroma Input
30
B0
Circuit 1 Channel 0 Blue/Pb/Chroma Input
31
G0
Circuit 1 Channel 0 Green/Luma Input
-
EP
Exposed Pad. Connect to GND
V+
V+
V+
*
IN
CIRCUIT 1
GND
LOGIC PIN
*
CIRCUIT 2
GND
*Not Always Present.
Refer to “Pin Description”
OUT
GND
CIRCUIT 3
V+
GND
CAPACITIVELY
COUPLED
ESD CLAMP
CIRCUIT 4
THERMAL HEAT SINK PAD
GND
~1MΩ
SUBSTRATE
13
FN6253.0
September 24, 2007