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DSP56002RC40 Datasheet(PDF) 10 Page - Motorola, Inc |
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DSP56002RC40 Datasheet(HTML) 10 Page - Motorola, Inc |
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10 / 110 page  1-4 DSP56002/D, Rev. 3 MOTOROLA Signal/Pin Descriptions Ground GROUND Table 1-3 Ground Ground Names Description GNDP Analog PLL Circuit Ground —This line supplies a dedicated quiet ground connection for the analog PLL circuits and must remain relatively noise-free to ensure stable PLL frequency and performance. Ensure that this line connects through an extremely low impedance path to ground. 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. GNDCK Clock Output Ground —This line supplies a quiet ground connection for the CKOUT output. Ensure that this line connects through an extremely low impedance path to ground. 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. GNDQ (4) Oscillator Ground —These lines supply a quiet ground connection for the oscillator circuits and the mode control and interrupt lines. Ensure that this line connects through an extremely low impedance path to ground. Use a 0.1 µF bypass capacitor located as close as possible to the chip package to connect between the VCCQ line and the GNDQ line. GNDA (5) Address Bus Ground —These lines connect system ground to the address bus. GNDD (6) Data Bus Ground —These lines connect system ground to the data bus. GNDC Bus Control Ground —This line connects ground to the bus control logic. GNDΗ (4) Host Interface Ground —These lines supply ground connections for the Host Interface logic. GNDS (2) Serial Interface Ground —These lines supply ground connections for the serial interface logic (SCI and SSI). |
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