Texas Instruments TLV320AIC12KEVMB-K EVM Overview, Features, Introduction, Analog Interface

www.ti.com EVM Overview

1 EVM Overview

1.1Features

∙Full-featured evaluation board for the TLV320AIC12K/14K audio codec

∙TLV320AIC12KEVMB-K/14KEVMB-K features USB connectivity for quick and easy setup.

∙Intuitive evaluation software

∙Easy interfacing to multiple analog sources

∙Analog output signals from the TLV320AIC12K/14K are available on top and bottom connectors.

∙On-board headphone jack, external microphone jack and electret microphone are included

∙Digital control signals can be applied directly to top and bottom connectors.

1.2Introduction

The TLV320AIC12KEVMB-K/14KEVMB-K is a complete evaluation/demonstration kit, which includes a USB-based motherboard called the USB-MODEVM Interface board and evaluation software for use with a personal computer running Microsoft Windows® operating systems. Provisions are made for connecting all audio inputs and outputs either from the modular connectors or with on-board terminals, a headphone jack, and external microphone jack. An on-board electret microphone is also provided.

2Analog Interface

For maximum flexibility, the TLV320AIC12KEVMB/14KEVMB is designed for easy interfacing to multiple analog sources. 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 J1 and J2. These headers/sockets provide access to the analog input and output pins of the device. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options. Table 1 summarizes the analog interface pinout for the TLV320AIC12KEVMB/14KEVMB.

		Table 1. Analog Interface Pinout
PIN NUMBER	SIGNAL	DESCRIPTION
J1.1	OUTM1	Inverting output of the DAC
J1.2	OUTP1	Noninverting output of the DAC
J1.3	OUTMV	Programmable virtual ground for the output of OUTP2 and OUTP3
J1.4	OUTP2	Analog output number 2 from the 16-Ωdriver
J1.5	OUTMV	Programmable virtual ground for the output of OUTP2 and OUTP3
J1.6	OUTMV	Programmable virtual ground for the output of OUTP2 and OUTP3
J1.7	OUTMV	Programmable virtual ground for the output of OUTP2 and OUTP3
J1.8	OUTP2	Analog output number 3 from the 16-Ωdriver
J1.9	AGND	Analog Ground
J1.10	NC	Not Connected
J1.11	AGND	Analog Ground
J1.12	NC	Not Connected
J1.13	AGND	Analog Ground
J1.14	NC	Not Connected
J1.15	NC	Not Connected
J1.16	NC	Not Connected
J1.17	AGND	Analog Ground
J1.18	NC	Not Connected
J1.19	AGND	Analog Ground
J1.20	NC	Not Connected
J2.1	INM2	Inverting analog input 2
SLAU229B–October 2007–Revised August 2008			TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K User's Guide	3
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