Cirrus Logic CDB43131-GBK, Manual

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CDB43131-GBK
10 DS1155V2DB1
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.
Figure 10 1/8" Headphone Jack/APx Connectors/Loading Jumpers for CSP
Figure 11 XLR Output/APx Connectors/Loading Jumpers for QFN
2.5 I
2
C Control
Header J42 (labeled I
2
C/SPI) provides an interface to connect a Total Phase Aardvark I
2
C/SPI Host Adapter. The header
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.
Table 4 I2C/SPI Header Pinout
Header Pins Designation Description
J42 1 I2C_SCL I
2
C clock
3 I2C_SDA I
2
C data
5 SPI_MISO SPI master in slave out
7 SPI_SCLK SPI clock
9 SPI_SS SPI chip select
8 SPI_MOSI SPI master out slave in
2, 10 GND Ground reference
4, 6 NC No connect