Power; Table 2-2 Power Inputs - Motorola DSP56309 User Manual

2.2

POWER

Power input descriptions for the DSP56309 are listed in Table 2-2.
Power Name
V
CCP
V (4)
CCQL
V (3)
CCQH
V (3)
CCA
V (4)
CCD
V (2)
CCC
V
CCH
MOTOROLA

Table 2-2 Power Inputs

PLL PowerÑV is power dedicated for phase-locked loop (PLL) use.
CCP
The voltage should be well regulated, and the input should be provided
with an extremely low impedance path to the V
should be bypassed to GND
as possible to the chip package. There is one V
Quiet Core (Low) PowerÑV
processing logic. This input must be isolated externally from all other
chip power inputs. The user must provide adequate external decoupling
capacitors. There are four V
Quiet External (High) PowerÑV
lines. This input must be tied externally to all other chip power inputs,
except V . The user must provide adequate external decoupling
CCQL
capacitors. There are three V
Address Bus PowerÑV
address bus I/O drivers. This input must be tied externally to all other
chip power inputs except V
external decoupling capacitors. There are three V
Data Bus PowerÑV
CCD
I/O drivers. This input must be tied externally to all other chip power
inputs. The user must provide adequate external decoupling capacitors.
There are four V
CCD
Bus Control PowerÑV
drivers. This input must be tied externally to all other chip power inputs
except V . The user must provide adequate external decoupling
CCQL
capacitors. There are two V
is an isolated power for the HI08 I/O drivers. This
Host PowerÑV
CCH
input must be tied externally to all other chip power inputs except
V . The user must provide adequate external decoupling capacitors.
CCQL
There is one V input.
CCH
DSP56309UM/D
Signal/Connection Descriptions
Description
by a stabilizing capacitor located as close
P
is an isolated power for the core
CCQL
inputs.
CCQL
is a quiet power source for I/O
CCQH
inputs.
CCQH
is an isolated power for sections of the
CCA
. The user must provide adequate
CCQL
is an isolated power for sections of the data bus
inputs.
is an isolated power for the bus control I/O
CCC
inputs.
CCC
power rail. V
CC CCP
input.
CCP
inputs.
CCA

Power

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