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LM4931 Datasheet(PDF) 41 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LM4931
Descripción Electrónicos  Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers
PDF  48 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4931 Datasheet(HTML) 41 Page - National Semiconductor (TI)

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Application Information (Continued)
LOUDSPEAKER FILTERED OUTPUT — FOR MEASUREMENT PURPOSES (JP6)
Pin
Function
1
Filtered LS+
2
Filtered LS-
MULTI-USE PORT GPIO (JP14)
Pin
Function
1
VSS_D
2
GPIO
PCM LOOPBACK JUMPER
Pin
Function
1
PCM_SDI
2
PCM_SDO
MODE Select Jumper (S1)
Jumper IN = LOW
Jumper OUT = HIGH
Crystal MCLK Jumper (S13)
Jumper IN = MCLK Supplied by on-board crystal oscillator
Jumper OUT = MCLK supplied by other source, crystal oscillator isolated
MCLK to PCM Bus and I
2S Bus Jumper (S14)
Jumper IN = MCLK connected to PCM bus and I
2S bus
Jumper OUT = MCLK isolated from PCM bus and I
2S bus
PLL FILTER SELECT JUMPERS (S6–S9)
Jumper
IN/OUT
Function
S6 + S7
IN
2nd Order Filter Select
S8 + S9
OUT
S6 + S7
OUT
3rd Order Filter Select
S8+S9
IN
POWER SUPPLY JUMPERS (S3–S5, S10–S12)
Jumper
Function
S3
connects VDD_D and VDD_PLL
S4
connects VDD_PLL and VDD_LS
S5
connects VDD_A and VDD_LS
S10
connects VSS_D and VSS_PLL
S11
connects VSS_PLL and LSGND
S12
connects VSS_A and LSGND
www.national.com
41



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