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LM4931 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM4931 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 47 page Connection Diagrams 42-Bump micro SMD 42-Bump micro SMD Marking 20100958 Top View (Bump Side Down) Order Number LM4931ITL See NS Package Number TLA42YVA 201009I7 Top View XY - Date Code TT - Die Tracebility G - Boomer Family C9 - LM4931ITL Pin Descriptions PIN PIN NAME D/A I/O DESCRIPTION A1 MIC_P A I Microphone positive differential input A2 MIC_N A I Microphone negative differential input A3 VDD(MIC) A I Analog Vdd for microphone section A4 MODE D I Selects between SPI and I 2C control interfaces (I2C=0,SPI=1) A5 SDA/SDI D I/O I 2C_SDA or SPI_SDI depending on the MODE control A6 NC N/A N/A No Connect B1 MIC_P A I Microphone positive differential input B2 MIC_BIAS A O 2V ultra clean power supply for microphones B3 BYPASS A I Click and Pop / VDD/2 reference filter B4 ADDR/ENB D I I 2C_ADDR or SPI_ENB depending on the MODE control B5 SCL/SCK D I I 2C_SCL or SPI_SCK depending on the MODE control B6 PCM_SDI D I PCM_SDI voice data input C1 VSS(MIC) A I Analog Vss for microphone section C2 MIC_REF A I Filter for microphone power supply C3 NC N/A N/A No Connect C4 PCM_SDO D O PCM_SDO serial data output C5 PCM_SYNC D I/O PCM_SYNC pulse for the PCM bus C6 PCM-CLK D I/O PCM_SYNC pulse for the PCM bus D1 HPL A O Left Headphone output D2 VSS(HP) A I Analog Vss for Headphone and Mixer sections D3 VSS(HP) A I Analog Vss for Headphone and Mixer sections D4 I 2S_SDI D I I 2S serial data input D5 I 2S_CLK D I/O I 2S clock signal D6 VSSD D I Digital Vss E1 VDD(HP) A I Analog Vdd for Headphone and Mixer sections E2 HPR A O Right Headphone output E3 GPIO D O Configurable multi purpose output E4 I 2S_WS D I/O I 2S word select signal E5 MCLK D I Input clock from 10MHz - 24.576MHz E6 VDDD D I Digital Vdd F1 LS+ A O Loudspeaker positive output F2 VDD(LS) A I Analog Vdd for Loudspeaker section F3 HP_SENSE A I Input for headphone connection sense circuit www.national.com 3 |
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