Arrow DECA User Manual page 27

GPIO1_D[20]
GPIO1_D[21]
GPIO1_D[22]
SYS_RESET_n
PWR_BUT
ADC1IN1
ADC1IN2
ADC1IN3
ADC1IN4
ADC1IN5
ADC1IN6
ADC1IN7
3.4.4 2 4 - b i t
2 4 - b i t
The DECA offers high-quality 24-bit audio via the Texas Instruments TLV320AIC3254 audio
CODEC (Encoder/Decoder). This chip on DECA supports, line-in, and line-out ports. One of line-in
inputs is both connected to the FPGA ADC and the audio CODEC ADC, it allows user to
implement audio applications via the MAX 10 build-in ADC. The operational amplifier OPA1612 is
used to make impedance match for the two fanouts from one line-in input. The connection of the
audio circuitry to the FPGA is shown in
FPGA is listed in Table
its datasheet, which can be found on the manufacturer's website, or in the directory
\DECA_datasheets\Audio CODEC of DECA System CD.
DECA User Manual
PIN_P9
PIN_V17
PIN_W3
PIN_AA2
PIN_U6
PIN_F5
PIN_F4
PIN_J8
PIN_J9
PIN_J4
PIN_H3
PIN_K5
A u d i o C O D E
A u d i o C O D E
3-10. More information about the TLV320AIC3254 CODEC is available in
GPIO (P9) Connection 1[20]
GPIO (P9) Connection 1[21]
GPIO (P9) Connection 1[22]
GPIO (P9) Connection
SYS_RESET_n
GPIO (P9) Connection PWR_BUT 3.3V
GPIO (P9) ADC1 Analog Input [1] 2.5V
GPIO (P9) ADC1 Analog Input [2] 2.5V
GPIO (P9) ADC1 Analog Input [3] 2.5V
GPIO (P9) ADC1 Analog Input [4] 2.5V
GPIO (P9) ADC1 Analog Input [5] 2.5V
GPIO (P9) ADC1 Analog Input [6] 2.5V
GPIO (P9) ADC1 Analog Input [7] 2.5V
C
C
Figure 3-18, and the associated pin assignment to the
26
3.3V
3.3V
3.3V
3.3V
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May 22, 2015