Datasheet

EVM Overview www.ti.com
1 EVM Overview
1.1 Features
• Full-featured evaluation board for the TLV320AIC1106 audio codec
• Selectable 13-bit linear or 8 bit µ-law companded conversion
• Differential microphone input with external gain setting
• Differential earphone output capable of driving a 32-Ω to 8-Ω load
• Microphone (MIC) and earphone (EAR) mute functions
• 2.048-MHz master clock rate
• Easy interfacing to multiple analog sources
• Analog output signals from the TLV320AIC1106 are available on top and bottom connectors.
• External microphone jack and electric microphone are included
• Digital control signals can be applied directly to top and bottom connectors
1.2 Introduction
The TLV320AIC1106EVM-K is a complete evaluation/demonstration kit, which includes a USB-based
motherboard called the USB-MODEVM Interface board. Provisions are made for connecting all audio
inputs and outputs either from the modular connectors or with onboard terminals and external microphone
jack. An onboard electret microphone is also provided.
2 Analog Interface
For maximum flexibility, the TLV320AIC1106EVM 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. These headers/sockets provide access to the analog input
and output pins of the device. Table 1 summarizes the analog interface pinout for the
TLV320AIC1106EVM.
Table 1. Analog Interface Pinout
Pin Number Signal Description
J1.1 EAROUT– Earphone amplifier negative output
J1.2 EAROUT+ Earphone amplifier positive output
J1.3 NC Not connected
J1.4 NC Not connected
J1.5 NC Not connected
J1.6 NC Not connected
J1.7 NC Not connected
J1.8 NC Not connected
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 NC Not connected
2
TLV320AIC1106EVM-K SLAU328A–October 2010–Revised January 2011
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