cxa1812q Sony Electronics, cxa1812q Datasheet - Page 19

• Manufacturer Part Number: cxa1812q
• Description: S-terminal Compatible Video I/o
• Manufacturer: Sony Electronics

Notes on Operation
• Cross talk may become severe, depending on the power supply and the ground connections, and on the
• The power supply pins should be decoupled as closely as possible to the IC. Because Pin 14 (V
• If more than the necessary capacitance is connected to the output pins (Pins 3, 5, 15, 17, 19, 21, and 31),
• The frequency response of the Y 75
• When Pin 6 (SEL2) is low, Pin 7 (CIN) and Pin 5 (COUT) have an input/output relationship, so that if more
• Pins 7 (CIN), 27 (CIN1), and 29 (CIN2) are coupled within the IC. If a signal of –0.3 V or less is input, a
substrate pattern. The power supply and ground connections should be wired so that impedance is as low
as possible, and the signal lines should be located away from other lines.
main power supply for this IC, inadequate decoupling can result in a worsening of characteristics such as
distortion and cross talk. Pins 8 (COUTV
the 75
oscillation may result. Wiring should be kept as short as possible.
The frequency response is raised if capacitance is connected to Pin 32 (YINVIN) versus GND.
The frequency response is attenuated in the high frequency if capacitance is connected between Pin 31
(YOUT) and Pin 32.
than the necessary amount of capacitance is connected between these two pins, a loop may be formed and
oscillation may easily result. When designing the board, make sure that there is no parasitic capacitance
between Pins 7 and 5.
protective element may cause waveform distortion. When inputting a signal of –0.3 V or less, it is
recommended that a suitable DC bias be applied to the input signal.
drivers, and inadequate decoupling can result in oscillation.
driver can be controlled by external elements.
CC
) and 9 (YOUTV
—19—
CC
) are power supplies for the output stage of
CC
CXA1812Q
) is the