CS4239 datasheet(91/98 Pages) CIRRUS

номер детали	CS4239

подробное описание детали	CrystalClear??Portable ISA Audio System

PDF	98 Pages

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производитель	CIRRUS [Cirrus Logic]

домашняя страница	http://www.cirrus.com

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Power Supplies

VA - Analog Supply Voltage

Supply to the analog section of the codec.

AGND - Analog Ground

Ground reference to the analog section of the codec. This pin should be placed on an analog

ground pin separate from other chip grounds.

VD1 - ISA Digital Supply Voltage

Digital supply for the parallel data bus pins. This pin can be connected to either 3.3 V or 5 V

power supply. When connected to a 3.3 V supply, all ISA bus pins must also be at 3.3 V.

DGND1 - ISA Digital Ground

Digital ground reference for the parallel data bus pins. These pins are isolated from the other

grounds and should be connected to the digital ground section of the board (see Figure 25).

VDF1, VDF2, VDF3 - Digital Filtered Supply Voltage

Digital supply for the internal digital section of the codec (except for the parallel data bus).

These pins should be filtered, using a ferrite bead, from VD1.

SGND1, SGND2, SGND3, SGND4 - Internal Digital Ground

Ground reference for the internal digital section of the codec. Optimum layout is achieved by

placing SGND1/2/3/4 on the digital ground plane with the DGND pin as shown in Figure 25.

CS4239

CrystalClear Portable ISA Audio System

DS253PP2

CS4239 датащи(PDF) 91 Page - Cirrus Logic