Texas Instruments TLV320AIC3212EVM-U, Руководство пользователя

Страница: 3 / 37

www.ti.com
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 2.2k
Ω 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
3 SLAU435 – March 2012 TLV320AIC3212EVM-U Evaluation Module
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated