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EVM Description and Getting Started

2 EVM Description and Getting Started

2.1 TLV320AIC3212EVM-U Hardware Description

Table 1 summarizes the audio jacks available to connect analog inputs and outputs to the

TLV320AIC3212 and the switches.

Table 1. Audio Jacks Available to Connect Analog Inputs and Outputs

Designator Label Associated pin Description

J1 N/A N/A USB Mini-B jack

J2 MIC IN IN2L/IN2R Line input or electret-condenser microphone input. For Line output, W11 and W12

jumpers should be removed. To use electret-condenser microphones, install

jumpers on W11 and W12; this connects 2.2kΩ pullup resistors to MICBIAS at

both the tip and the ring.

J3 SPEAKER SPKLP/SPKLM/ Stereo Class-D Speaker Outputs

OUTPUTS SPKRP/SPKRM

J4 HP OUT HPL/HPR Headphone Output

J5 REC OUT RECP/RECM Receiver Output

J6 SAR REF VREF_SAR External voltage supply for SAR

VOLTAGE

J7 SAR IN IN1L/IN1R SAR ADC Inputs

J11 CLASS D SLVDD/SRVDD/ Connector for External Speaker Supply. To use external supply, set JP3 to 1-2

PWR INPUT SPK_V ("EXT") and JP2 to 1-2 ("EXT").

J19 LINE OUT LOL/LOR Line output. Connect only high-impedance loads to this output (e.g., external

Class-D amplifier).

SW1 RESET N/A RESET switch

SW2 APP N/A Cycles through the applications loaded in the onboard EEPROM.

SW3 PATCH N/A Cycles through the patches loaded in the onboard EEPROM.

SW4 USB_RESET N/A USB_RESET

SLAU435–March 2012 TLV320AIC3212EVM-U Evaluation Module

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