Datasheet

PCM3070
SCL SDA
IN1_L
IN1_R
IN2_L
IN2_R
IN3_L
IN3_R
MCLK
BCLK
WCLK
DIN
DOUT
DIR9001
TAS57xx
LOL
LOR
HPL
HPR
100W
1 Fm
1KW
0.047 Fm
0.047 Fm
TPA3123
LDOIN
LDO_SELECT
IOVDD
IOVSS
DVSS
AVSS
REF
DVDD AVDD
3V3
47 Fm
MSP430
Headphone
Output
47 Fm
1 Fm
100W
1KW
7.5KW
2.49KW
0.47 Fm
0.47 Fm
2.49KW
7.5KW
7.5KW
2.49KW
0.47 Fm
0.47 Fm
2.49KW
7.5KW
7.5KW
2.49KW
0.47 Fm
0.47 Fm
2.49KW
7.5KW
10 Fm
10 Fm
10 Fm
10 Fm
0.1 Fm
1 Fm
PCM3070
SLAS724 – FEBRUARY 2011 www.ti.com
Typical Circuit Configuration
Figure 20. Typical Circuit Configuration
Application Overview
The PCM3070 offers a wide range of configuration options. Figure 1 shows the basic functional blocks of the
device.
Device Connections
Digital Pins
Only a small number of digital pins are dedicated to a single function; whenever possible, the digital pins have a
default function, and also can be reprogrammed to cover alternative functions for various applications.
The fixed-function pins are Reset and the SPI_Select pin, which are HW control pins. Depending on the state of
SPI_Select, the two control-bus pins SCL/SS and SDA/MOSI are configured for either I
2
C or SPI protocol.
Other digital IO pins can be configured for various functions via register control. An overview of available
functionality is given in Multifunction Pins.
Analog Pins
Analog functions can also be configured to a large degree. Analog blocks are powered down by default. The
blocks can be powered up with fine granularity according to the application needs.
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Product Folder Link(s): PCM3070