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LM4935WL Fiches technique(PDF) 7 Page - National Semiconductor (TI) |
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LM4935WL Fiches technique(HTML) 7 Page - National Semiconductor (TI) |
7 / 112 page 7.0 Connection Diagrams (Continued) Pin Descriptions (Continued) Pin Pin Name Type Direction Description E2 HP_VMID_FB Analog Inout VMID Feedback in OCL mode, otherwise a 2nd headset detection input E3 MIC_DET Analog Input Headset insertion/removal and Microphone presence detection input E4 CPI_NEG Analog Input Cell Phone analog input negative E5 IRQ Digital Output Interrupt request signal (NOT open drain) E6 I2S_SDO Digital Output I2S Serial Data Out E7 I2S_SDI Digital Input I2S Serial Data Input F1 LS_V DD Supply Input Loudspeaker V DD F2 LS_V DD Supply Input Loudspeaker V DD F3 CPI_POS Analog Input Cell Phone analog input positive F4 CPO_NEG Analog Output Cell Phone analog output negative F5 AUX_OUT_NEG Analog Output Auxiliary analog output negative F6 I2S_WS Digital Inout I2S Word Select Signal (can be master or slave) F7 I2S_CLK Digital Inout I2S Clock Signal (can be master or slave) G1 LS_POS Analog Output Loudspeaker positive output G2 LS_V SS Supply Input Loudspeaker V SS G3 LS_NEG Analog Output Loudspeaker negative output G4 CPO_POS Analog Output Cell Phone analog output positive G5 AUX_OUT_POS Analog Output Auxiliary analog output positive G6 D_V SS Supply Input Digital V SS G7 MCLK Digital Input Input clock from 0.5 MHz to 30 MHz 7.1 PIN TYPE DEFINITIONS Analog Input — A pin that is used by the analog and is never driven by the device. Supplies are part of this classification. Analog Output — A pin that is driven by the device and should not be driven by external sources. Analog Inout — A pin that is typically used for filtering a DC signal within the device, Passive com- ponents can be connected to these pins. Digital Input — A pin that is used by the digital but is never driven. Digital Output — A pin that is driven by the device and should not be driven by another device to avoid contention. Digital Inout — A pin that is either open drain (I2C_SDA) or a bidirectional CMOS in/out. In the later case the direction is selected by a control register within the LM4935. www.national.com 7 |
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