Datasheet
Mainmic
Monauralauxiliary
input
Audio
TDM/I2S
interface
High-speed
I C
2
(Control)
Audio/voicemodule
HFCLKIN
BiasLDOs
Carkit
Speak/mic
H-bridge
vibrator
Device
037-004
Class-Dpredriver
TPS65930/TPS65920
www.ti.com
SWCS037G–MAY 2008–REVISED APRIL 2011
6 Audio/Voice Module (TPS65930 Device Only)
NOTE
This section applies only to the TPS65930 device.
Figure 6-1 is the audio/voice module block diagram.
Figure 6-1. Audio/Voice Module Block Diagram
6.1 Audio/Voice Downlink (RX) Module
The audio/voice module includes the following output stages:
• Predriver output signals for external class-D amplifiers (single-ended)
• Vibrator H-bridge
6.1.1 Predriver for External Class-D Amplifier
The external class-D amplifiers provide a stereo signal on terminals PreD.LEFT and PreD.RIGHT to drive
the external class-D amplifier. These terminals are available if a stereo, single-ended, ac-coupled headset
is used.
Copyright © 2008–2011, Texas Instruments Incorporated Audio/Voice Module (TPS65930 Device Only) 55
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