Datasheet

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3 Digital Interface
Digital Interface
The TLV320DAC32EVM is designed to interface with multiple control platforms. Samtec part numbers
SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin dual row header/socket
combination at J4 and J5. These headers/sockets provide access to the digital control and serial data pins
of the device. Consult Samtec at www.samtec.com or call 1-800- SAMTEC-9 for a variety of mating
connector options. Table 3 summarizes the digital interface pinout for the TLV320DAC32EVM.
Table 3. Digital Interface Pin Out
PIN SIGNAL DESCRIPTION
NUMBER
J4.1 NC Not Connected
J4.2 GPIO1 General Purpose Input/Output #1
J4.3 SCLK SPI Serial Clock
J4.4 DGND Digital Ground
J4.5 NC Not Connected
J4.6 GPIO2 General Purpose Input/Output #2
J4.7 SS SPI Chip Select
J4.8 RESET INPUT Reset signal input to DAC32EVM
J4.9 NC Not Connected
J4.10 DGND Digital Ground
J4.11 MOSI SPI MOSI Slave Serial Data Input
J4.12 SPI SELECT Select Pin (SPI vs I
2
C Control Mode)
J4.13 MISO SPI MISO Slave Serial Data Output
J4.14 DAC32 RESET Reset
J4.15 NC Not Connected
J4.16 SCL I
2
C Serial Clock
J4.17 NC Not Connected
J4.18 DGND Digital Ground
J4.19 NC Not Connected
J4.20 SDA I
2
C Serial Data Input/Output
J5.1 NC Not Connected
J5.2 NC Not Connected
J5.3 BCLK Audio Serial Data Bus Bit Clock (Input/Output)
J5.4 DGND Digital Ground
J5.5 NC Not Connected
J5.6 NC Not Connected
J5.7 WCLK Audio Serial Data Bus Word Clock (Input/Output)
J5.8 NC Not Connected
J5.9 NC Not Connected
J5.10 DGND Digital Ground
J5.11 DIN Audio Serial Data Bus Data Input (Input)
J5.12 NC Not Connected
J5.13 DOUT Audio Serial Data Bus Data Output (Output)
J5.14 NC Not Connected
J5.15 NC Not Connected
J5.16 SCL I
2
C Serial Clock
J5.17 MCLK Master Clock Input
J5.18 DGND Digital Ground
J5.19 NC Not Connected
J5.20 SDA I
2
C Serial Data Input/Output
TLV320DAC32EVM and TLV320DAC32EVM-PDK4 SLAU201 – November 2006
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