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LM4548A Datasheet(PDF) 9 Page - Texas Instruments |
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LM4548A Datasheet(HTML) 9 Page - Texas Instruments |
9 / 34 page DVDD1 XTL_OUT SDATA_OUT 48 1 47 46 2 3 4 5 XTL_IN DVSS1 45 6 7 8 9 10 11 12 LM4548A $& µ97 Rev 2 Codec 36 35 34 33 32 31 30 29 28 27 26 25 BIT_CLK SDATA_IN SYNC RESET# PC_BEEP DVDD2 DVSS2 LINE_OUT_R 3DP NC LINE_OUT_L 3DN NC NC AVSS NC VREF VREF_OUT AVDD 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 OBSOLETE LM4548A www.ti.com SNOS988D – NOVEMBER 2002 – REVISED APRIL 2013 Connection Diagram 48 Pin LQFP - Top View See Package Number PT PIN DESCRIPTIONS ANALOG I/O Name Pin I/O Functional Description Mono Input This line level (1 Vrms nominal) mono input is mixed equally into both channels of the Stereo Mix signal at MIX2 under the control of the PC_Beep Volume control register, 0Ah. PC_BEEP 12 I The PC_BEEP level can be muted or adjusted from 0 dB to -45 dB in 3 dB steps. The Stereo Mix signal feeds both the Line Out and Line Level Out analog outputs and is also selectable at the Record Select Mux. Mono Input This line level (1 Vrms nominal) mono input is mixed equally into both channels of the Stereo Mix signal at MIX2 under the control of the Phone Volume register, 0Ch. The PHONE 13 I PHONE level can be muted or adjusted from +12 dB to -34.5 dB in 1.5 dB steps. The Stereo Mix signal feeds both the Line Out and Line Level Out analog stereo outputs and is also selectable at the Record Select Mux. Left Stereo Channel Input This line level input (1 Vrms nominal) is selectable at the left channel of the stereo Record Select Mux for conversion by the left channel ADC. It can also be mixed into the left AUX_L 14 I channel of the Stereo Mix 3D signal at MIX1 under the control of the Aux Volume register, 16h. The AUX_L level can be muted (along with AUX_R) or adjusted from +12 dB to -34.5 dB in 1.5 dB steps. Stereo Mix 3D is combined into the Stereo Mix signal at MIX2 for access to the stereo outputs Line Out and Line Level Out. Copyright © 2002–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM4548A |
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