adsst-sharc-melody-ultra Analog Devices, Inc., adsst-sharc-melody-ultra Datasheet - Page 12

• Manufacturer Part Number: adsst-sharc-melody-ultra
• Description: Sharc Melody Ultra Audio Processor
• Manufacturer: Analog Devices, Inc.

ADSST-SHARC-Melody-Ultra
Power Supplies
The SHARC Melody Ultra has separate power supply connec-
tions for the internal (V
(AV
must meet the 1.8 V requirement. The external supply must
meet the 3.3 V requirement. All external supply pins must be
connected to the same supply.
Note that the analog supply (AV
Ultra processor’s clock generator PLL. To produce a stable clock,
provide an external circuit to filter the power input to the AV
DD
/AGND) power supplies. The internal and analog supplies
DDINT
), external (V
DD
) powers the SHARC Melody
DDEXT
), and analog
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DD
pin. Place the filter as close as possible to the pin. For an exam-
ple circuit, see
trace for the analog ground (AGND) signal and install a de-
coupling capacitor as close as possible to the pin.
V
DDINT
Figure 8. Analog Power (AV
Figure 8
10Ω
. To prevent noise coupling, use a wide
0.1µF
AGND
DD
) Filter Circuit
0.01µF
AV
DD