Texas Instruments TLV320AIC20KEVM, User Manual, Page: 12 / 25

Codec-to-Platform
2-2
2.1 Codec-to-Platform
The TLV320AIC20K and 24K mate with the development platform via a 40-pin
Samtec connector. The mating connector (Samtec part number,
TSM-120-01-T-DV-P) is used on the development platform to provide the
electrical connections necessary. Consult Samtec at
www.samtec.com or
1 − 800 − SAMTEC − 9 for more information.
The pinout for the 40-pin connector is listed in Table 2 − 1.
Table 2 − 1. Pinout for 40-Pin Connector
Pin Number Signal Description
J21.1 MCLK Master clock
J21.2 DGND Digital ground
J21.3 SCLK Serial data clock
J21.4 DGND Digital ground
J21.5 DIN Data in
J21.6 DGND Digital ground
J21.7 DOUT Data out
J21.8 Reserved Reserved for future use
J21.9 FS Frame sync
J21.10 Reserved Reserved for future use
J21.11 CLKX Transmit clock
J21.12 Reserved Reserved for future use
J21.13 FSX Frame sync transmit
J21.14 Reserved Reserved for future use
J21.15 DX Data transmit
J21.16 DR Data receive
J21.17 RESET Global reset for all devices
J21.18 FSR Frame sync receive
J21.19 PWDN Global powerdown for all devices
J21.20 CLKR Receive clock
J21.21 CNTLb GPIO pin
J21.22 CNTLa GPIO pin
J21.23 STATb Status pin
J21.24 STATa Status pin
J21.25 3.3V_D Digital 3.3 V
J21.26 Reserved Reserved for future use
J21.27 3.3V_D Digital 3.3 V
J21.28 DGND Digital ground
J21.29 1.8V_D Digital 1.8 V
J21.30 DGND Digital ground
J21.31 1.8V_D Digital 1.8 V
J21.32 DGND Digital ground