LM4931 datasheet(41/48 Pages) NSC

부품명	LM4931

상세설명	Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers

PDF	48 Pages

Scroll/Zoom	100%

제조업체	NSC [National Semiconductor (TI)]

홈페이지	http://www.national.com

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41 / 48 page

Application Information (Continued)

LOUDSPEAKER FILTERED OUTPUT — FOR MEASUREMENT PURPOSES (JP6)

Function

Filtered LS+

Filtered LS-

MULTI-USE PORT GPIO (JP14)

Function

VSS_D

GPIO

PCM LOOPBACK JUMPER

Function

PCM_SDI

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

2nd Order Filter Select

S8 + S9

OUT

S6 + S7

OUT

3rd Order Filter Select

S8+S9

POWER SUPPLY JUMPERS (S3–S5, S10–S12)

Jumper

Function

connects VDD_D and VDD_PLL

connects VDD_PLL and VDD_LS

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

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

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