DSP56004SLASHD datasheet(9/82 Pages) FREESCALE

9 / 82 page

Signal/Connection Descriptions

Power

MOTOROLA

DSP56004/D, Rev. 3

1-3

POWER

GROUND

Table 1-2

Power Inputs

Power Name

Description

VCCP

PLL Power

—VCCP provides isolated power for the Phase Lock Loop (PLL). The

voltage should be well-regulated and the input should be provided with an

extremely low impedance path to the VCC power rail.

VCCQ

Quiet Power

—VCCQ provides isolated power for the internal processing logic. This

input must be tied externally to all other chip power inputs. The user must provide

adequate external decoupling capacitors.

VCCA

Address Bus Power

—VCCA provides isolated power for sections of the address bus

I/O drivers. This input must be tied externally to all other chip power inputs. The

user must provide adequate external decoupling capacitors.

VCCD

Data Bus Power

—VCCD provides isolated power for sections of the data bus I/O

drivers. This input must be tied externally to all other chip power inputs. The user

must provide adequate external decoupling capacitors.

VCCS

Serial Interface Power

—VCCS provides isolated power for the SHI and SAI. This

input must be tied externally to all other chip power inputs. The user must provide

adequate external decoupling capacitors.

Table 1-3

Grounds

Ground Name

Description

GNDP

PLL Ground

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

provided 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.

GNDQ

Quiet Ground

—GNDQ provides isolated ground for the internal processing logic.

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

user must provide adequate external decoupling capacitors.

GNDA

Address Bus Ground

—GNDA provides isolated ground for sections of the address

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

connections. The user must provide adequate external decoupling capacitors.

GNDD

Data Bus Ground

—GNDD provides isolated ground for sections of the data bus I/O

drivers. This connection must be tied externally to all other chip ground

connections. The user must provide adequate external decoupling capacitors.

GNDS

Serial Interface Ground

—GNDS provides isolated ground for the SHI and SAI. This

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

must provide adequate external decoupling capacitors.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

DSP56004/D Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc

DSP56004/D Datasheet(HTML) 9 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Datasheet Download

Link URL