Rainbow Electronics MAX5559 - Manual (Page 18)

MAX5556–MAX5559
Power-Supply Connections and Ground
Management
Proper layout and grounding are essential for optimum
performance. Use large traces for the power-supply
inputs and analog outputs to minimize losses due to
parasitic trace resistance. Large traces also aid in mov-
ing heat away from the package. Proper grounding
improves audio performance, minimizes crosstalk
between channels, and prevents any switching noise
from coupling into the audio signal. Route the analog
paths (GND, V
DD , OUTL, and OUTR) away from the
digital signals. Connect a 0.1µF capacitor in parallel
with a 4.7µF capacitor as close to V
DD as possible. Low
ESR-type capacitors are recommended for supply
decoupling applications. A small value C0G-type
bypass capacitor located as close to the device as
possible is recommended in parallel with larger values.
Chip Information
PROCESS: BiCMOS
Low-Cost Stereo Audio DACs
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