Intel 820E Micinr Micinfb, Micinc, DB15AUDSTK, Hpoutac Hpoutafb, Hpoutbc Hpoutbfb, Acbypass

8 7 6

AC’97 Audio

D

	AUD_VREFOUT			R7			Microphone Input
13									J5
				2.2K	MIC_IN_R		MIC_IN_FB	M20
MIC_IN	C27	2	MIC_IN_C	R9		2	1	M19
	1							M18
13	+			1K
1UF-TANT						L5		M17
		C34		10PF-	1
					+	C28		M16
								DB15_AUD_STK

5 4 3 2 1

			Stereo HP/Spkr out
HP_OUTA	C10	2	HP_OUTA_C 1	2	HP_OUTA_FB	HP30 J5
	1
	+					HP29
	100UF			L4
						HP28
	C3						D
		2	HP_OUTB_C 1	2	HP_OUTB_FB	HP27
	1
	+

100UF				L1			HP26
	10PF-NPO C24 12 +
10PF-NPO			C11 12 +			DB15_AUD_STK
					AGND
AGND		AGND

C8		100PF
	R4

	0.01UF		NPO	2
							AGND
	AGND		AGND
C						Line_In Analog Input
LINE_IN_R	C23		LINE_IN_R_C							J5
	1	2			1	2		LINE_IN_R_FB LI25
13		+				L2			LI24
	1UF-TANT
									LI23
	C25
LINE_IN_L			LINE_IN_L_C		1	2		LINE_IN_L_FB LI22
	1	2
13		+

					20K
LNLVL_OUT_R		C6	LNLVL_R_C	R1	LNLVL_R_R
	1	2
13		+		20K	AC_BYPASS
	1UF-TANT

LNLVL_OUT_L	1	C13	LNLVL_L_C	R3		1
		2			C2		+
13		+
				20K			AGND
	1UF-TANT
						2
							1UF

AGND

	U1
LM4880
1	OUTA	VDD 8	VCC5_AUDIO		13	20K	R2
2	INA	OUTB 7	HP_OUTB
3	BYPASS	INB 6	EAPD	13
4	GND	SHUTDN 5
				1
				C14	+
				2	0.1UF
				AGND

100PF

C4

C

1UF-TANT					L3		LI21
							DB15_AUD_STK
10PF-NPO			10PF-NPO C22			AGND
	1 +			1 +	C26
	2			2
AGND		AGND

LNLVL_L_R

B

B

CD Analog Input

		R52							C59	CD_L
J4							CD_L_C	2	1
1	CD_L_J	4.7K							+	13
									1UF
2	CD_REF_J
		R27							C58
										CD_REF
3							CD_REF_C	2	1
4	CD_R_J	4.7K							+	13
									1UF
		R18							C50	CD_R
							CD_R_C	2	1
		4.7K							+	13
									1UF
A
		R51	4.7K	R30	4.7K	R25	4.7K
		AGND	AGND		AGND

A

TITLE: INTEL(R) 820E CHIPSET 2 DIMM FCPGA REFERENCE BOARD				REV:
AUDIO			DRAWN BY:	0.5
	R	PCG PLATFORM DESIGN		PROJECT:
			PCG AE	Camino2
		1900 PRAIRIE CITY ROAD
		FOLSOM, CALIFORNIA 95630	LAST REVISED:	SHEET:
			3-20-2000_10:15	14 OF 40

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