Analog Audio Output; C Control - Cirrus Logic CDB43131-GBK Manual

2.4 Analog Audio Output

The CDB43131 board has one 1/8" stereo headphone output jack (J1) for the CSP and one XLR cable output jack (J60)
for the QFN.
2
2.5 I

C Control

2
Header J42 (labeled I C/SPI) provides an interface to connect a Total Phase Aardvark I
signals are described in the following table. The logic level on these pins is 3.3 V. Through this header, a user can
communicate with a smart codec, the TCA6424 I/O Expander, and the CS43131.
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Figure 10 1/8" Headphone Jack/APx Connectors/Loading Jumpers for CSP
Figure 11 XLR Output/APx Connectors/Loading Jumpers for QFN
Table 4 I2C/SPI Header Pinout
Header Pins
J42 1
3
5
7
9
8
2, 10
4, 6
Designation Description
2
I2C_SCL I C clock
2
I2C_SDA I C data
SPI_MISO SPI master in slave out
SPI_SCLK SPI clock
SPI_SS SPI chip select
SPI_MOSI SPI master out slave in
GND Ground reference
NC No connect
CDB43131-GBK
2
C/SPI Host Adapter. The header
DS1155V2DB1