Datasheet

HPVDD
HPVSSSPKVDD SPKVSS
AVDD
AVSSSPKVSS
VOL/MICDET
MICBIAS
TLV320DAC3100
SPKVDD
22 Fm0.1 Fm0.1 Fm 22 Fm
SVDD
AVDD
AVSS
0.1 Fm
10 Fm
0.1 Fm
10 Fm
+3.3VA
1 Fm
DVDD
DVSS IOVDD IOVSS
0.1 Fm 10 Fm
+1.8VD
IOVDD
0.1 Fm 10 Fm
HOST PROCESSOR
DIN
BCLK
WCLK
MCLK
SCL
SDA
RESET
GPIO1
S0400-08
AIN1
AIN2
To External
MIC Circuitry
Analog In
SPKM
SPKM
SPKP
SPKP
HPR
HPL
8- or 4-
Speaker
W W
Stereo
Headphone
Out
34.8 kW
25 kW
9.76 kW
R 2
p
´
IOVDD
TLV320DAC3100
www.ti.com SLAS671A –FEBRUARY 2010–REVISED MAY 2012
5 APPLICATION INFORMATION
5.1 Typical Circuit Configuration
Figure 5-1. Typical Circuit Configuration
5.2 Overview
The TLV320DAC3100 is a highly integrated stereo audio DAC for portable computing, communication,
and entertainment applications. A register-based architecture eases integration with microprocessor-based
systems through standard serial-interface buses. This device supports the two-wire I
2
C bus interface,
which provides full register access. All peripheral functions are controlled through registers and the
onboard state machines.
The TLV320DAC3100 consists of the following blocks:
• Stereo audio DAC
• Dynamic range compressor (DRC)
Copyright © 2010–2012, Texas Instruments Incorporated APPLICATION INFORMATION 15
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