VS1033C Datasheet, PDF (16/74 Pages) List of Unclassifed Manufacturers – MP3/AAC/WMA/MIDI AUDIO CODEC

VLSI
Solution ^y
VS1033C
VS1033c PRELIMINARY
6. CONNECTION DIAGRAM, LQFP-48
6 Connection Diagram, LQFP-48
Figure 3: Typical Connection Diagram Using LQFP-48.
The common buffer GBUF can be used for common voltage (1.24 V) for earphones. This will eliminate
the need for large isolation capacitors on line outputs, and thus the audio output pins from VS1033 may
be connected directly to the earphone connector.
GBUF must NOT be connected to ground in any circumstance. If GBUF is not used, LEFT and RIGHT
must be provided with 100 µF capacitors. See application notes for details.
Unused GPIO pins should have a pull-down resistor.
If UART is not used, RX should be connected to IOVDD and TX be unconnected.
Do not connect any external load to XTALO.
Note: This connection assumes SM SDINEW is active (see Chapter 8.7.1). If also SM SDISHARE is
used, xDCS should be tied low or high (see Chapter 7.2.1).
Version 0.9, 2006-08-15
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