DSP96002UMSLASHAD datasheet(87/111 Pages) NXP

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Design Considerations

Power-Up Considerations

MOTOROLA

DSP96002/D, Rev. 2

4-5

POWER-UP CONSIDERATIONS

To power-up the device properly, ensure that the following conditions are met:

•

Stable power is applied to the device according to the specifications in

Table 2-3

(DC Electrical Characteristics).

•

The external clock oscillator is active and stable.

•

RESET is asserted according to the specifications in Table 2-7 (Reset, Stop,

Mode Select, and Interrupt Timing).

Care should be taken to ensure that the maximum ratings for all input voltages

obey the restrictions on Table 2-1 (Maximum Ratings), at all phases of the power-

up procedure. This may be achieved by powering the external clock, hardware

reset, and mode selection circuits from the same power supply that is connected

to the power supply pins of the chip.

At the beginning of the hardware reset procedure, the device might consume

significantly more current than the specified typical supply current. This is

because of contentions among the internal nodes being affected by the hardware

reset signal until they reach their final hardware reset state.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

DSP96002UM/AD Datasheet(PDF) 87 Page - NXP Semiconductors