SPCA701A View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

SPCA701A

DIGITAL VIDEO ENCODER FOR VIDEOCD

Unspecified 

Preliminary

SPCA701A

COMPONENT PLACEMENT

Components should be placed as close as possible to the associated pin. The optimum layout enables the

SPCA701A to be located as close as possible to the power supply connector and the video output connector.

POWER AND GROUND PLANES

For optimum performance, a common digital and analog ground plane is recommended. Separate digital and

analog power planes are recommended. The digital power plane should provide power to all digital logic on the

PC board, and the analog power plane should provide power to all SPCA701A power pins, VREF circuitry, and

COMP decoupling. At least a 1/8-inch gap is required in between the digital power plane and the analog power

plane. The analog power plane should be connected to the digital power plane (VCC) at a single point through a

ferrite bead, as illustrated in Figure 4, Table 6. This bead should be located within 3 inches of the SPCA701A.

The bead provides resistance to switching-currents, acting as a resistance at high frequencies. A low-

resistance bead should be used, such as Ferroxcube 5659065-3B, Fair-Rite 2723021447, or TDK BF45-4001.

Sunplus Technology Co., Ltd.

12

Rev.: 0.2 1999.12.07

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