dsp56167 Freescale Semiconductor, Inc, dsp56167 Datasheet - Page 9

• Manufacturer Part Number: dsp56167
• Description: Advance Information 16-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

POWER
MOTOROLA
V
V
V
V
V
V
V
DDS
DDA/D
DDC
DDQ
DDPB
DDA
DDPC
Power Names
Synthesizer Power—This line is dedicated to the 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 V
located as close as possible to the chip package to connect between the V
and the GND
Address and Data Bus Power—These lines supply power to the address and
data busses.
Bus Control Power—This line supplies power to the bus control logic.
Quiet Power—These lines supply a quiet power source to the internal logic
circuits. Ensure that the input voltage to this line is well-regulated and uses an
extremely low impedance path to tie to the V
capacitor located as close as possible to the chip package to connect between the
V
Port B Power—These lines supply power to the Port B HI logic.
Codec Power—This line supplies power to the codec logic.
Port C Power—This line supplies power to the SSI and Timer logic.
DDQ
lines and the V
S
line.
DSP56167/D, Rev. 1
DD
Table 1-2 Power
SSQ
power rail. Use a 0.1 F capacitor and a 0.01 F capacitor
lines.
Description
DD
power rail. Use a 0.1 F bypass
Signal/Pin Descriptions
DDS
line
Power
1-3