DSP56002RC40 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

DSP56002RC40

24-BIT DIGITAL SIGNAL PROCESSOR

Motorola => Freescale 

Signal/Pin Descriptions

Power

POWER

Table 1-2 Power

Power Names

VCCP

VCCCK

VCCQ (4)

VCCA (3)

VCCD (3)

VCCC

VCCH (2)

VCCS

Description

Analog PLL Circuit Power—This line is dedicated to the analog PLL circuits

and must remain noise-free to ensure stable PLL frequency and performance.

Ensure that the input voltage to this line is well-regulated and uses an extremely

low impedance path to tie to the VCC power rail. Use a 0.1 µF capacitor and a

0.01 µF capacitor located as close as possible to the chip package to connect

between the VCCP line and the GNDP line.

Clock Output Power—This line supplies a quiet power source for the CKOUT

output. Ensure that the input voltage to this line is well-regulated and uses an

extremely low impedance path to tie to the VCC power rail. Use a 0.1 µF bypass

capacitor located as close as possible to the chip package to connect between the

VCCCK line and the GNDCK line.

Oscillator Power—These lines supply a quiet power source to the oscillator

circuits and the mode control and interrupt lines. Ensure that the input voltage

to this line is well-regulated and uses an extremely low impedance path to tie to

the VCC power rail. Use a 0.1 µF bypass capacitor located as close as possible to

the chip package to connect between the VCCQ lines and the GNDQ lines.

Address Bus Power—These lines supply power to the address bus.

Data Bus Power—These lines supply power to the data bus.

Bus Control Power—This line supplies power to the bus control logic.

Host Interface Power—These lines supply power to the Host Interface logic.

Serial Interface Power—This line supplies power to the serial interface logic

(SCI and SSI).

MOTOROLA

DSP56002/D, Rev. 3

1-3

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