DSP56364 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

DSP56364

24-Bit Audio Digital Signal Processor

Motorola => Freescale 

Freescale Semiconductor, Inc.

Signal/Connection Descriptions

Ground

1.3 GROUND

Table 1-3 Grounds

Ground

Name

GNDP

GNDQ (4)

GNDA (4)

GNDD (1)

GNDC (1)

GNDS (3)

Description

PLL Ground—GNDP is ground-dedicated for PLL use. The connection should be pro-

vided with an extremely low-impedance path to ground. VCCP should be bypassed to

GNDP by a 0.47 µF capacitor located as close as possible to the chip package. There is

one GNDP connection.

Quiet Ground—GNDQ is an isolated ground for the internal processing logic. This con-

nection must be tied externally to all other chip ground connections. The user must pro-

vide adequate external decoupling capacitors. There are four GNDQ connections.

Address Bus Ground—GNDA is an isolated ground for sections of the address bus

I/O drivers. This connection must be tied externally to all other chip ground connec-

tions. The user must provide adequate external decoupling capacitors. There are four

GNDA connections.

Data Bus Ground—GNDD is an isolated ground for sections of the data bus

I/O drivers. This connection must be tied externally to all other chip ground connec-

tions. The user must provide adequate external decoupling capacitors. There is one

GNDD connections.

Bus Control Ground—GNDC is an isolated ground for the bus control I/O drivers. This

connection must be tied externally to all other chip ground connections. The user must

provide adequate external decoupling capacitors. There is one GNDC connections.

SHI and ESAI —GNDS is an isolated ground for the SHI and ESAI. This connection

must be tied externally to all other chip ground connections. The user must provide

adequate external decoupling capacitors. There are three GNDS connections.

1-4

DSP56364 Advance Information

MOTOROLA

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