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5

4

3

2

1

R1 CHANNEL1+ 243 R5 CHANNEL1D

R2 U1 C1 3900pF 1 2 INL+ INLAGND1 REF+ REFVD DGND1 FORMAT INR+ INRMID VA AGND2 DGND2 DOUT WDCLK 16 15 14 13 12 11 10 9 AGND DGND DATA1-2 AGND WDCLK AGND JP2 C7 0.1uF C5 0.1uF 243 +5VA C2 3900pF 243 R6 CHANNEL2CHANNEL5CHANNEL2+ CHANNEL5+

R3 U2 243 R7 2 243 R10 +5VA 243 +5VA C10 0.1uF AGND AGND 3 4 5 6 7 8 C3 3900pF 1 INL+ INLAGND1 REF+ REFVD DGND1 FORMAT INR+ INRMID VA AGND2 DGND2 DOUT WDCLK 16 15 14 13 12 11 10 9 AGND DGND DATA5-6 C4 3900pF

R4 CHANNEL6+ 243 R8 CHANNEL6243 +5VA C8 0.1uF C6 0.1uF
D

243 R9 +5VA 243 +5VA

AGND

3 4

AGND

5 6

C9 0.1uF JP1 AGND JUMPER DGND

7 8

AGND WDCLK

AL1101

JUMPER DGND

AL1101

R11
C

R12 U3 CHANNEL8+ 16 15 14 13 12 11 10 9 AGND DGND DATA7-8 AGND WDCLK C17 0.1uF C15 0.1uF 243 +5VA C12 3900pF 243 R16 CHANNEL8C

R13 CHANNEL3+ 243 R17 CHANNEL3243 R20 +5VA 243 +5VA C20 0.1uF JP4 AGND JUMPER DGND AL1101 AGND AGND 2 3 4 5 6 7 8 C13 3900pF 1 U4 INL+ INLAGND1 REF+ REFVD DGND1 FORMAT INR+ INRMID VA AGND2 DGND2 DOUT WDCLK 16 15 14 13 12 11 10 9 AGND DGND DATA3-4 C14 3900pF

R14 CHANNEL4+ 243

CHANNEL7+ 243 R15 C11 3900pF 1 2 243 R19 +5VA +5VA C18 0.1uF C16 0.1uF +5VA C19 0.1uF AGND JP3 AGND JUMPER DGND 243 AGND AGND 3 4 5 6 7 8

INL+ INLAGND1 REF+ REFVD DGND1 FORMAT

INR+ INRMID VA AGND2 DGND2 DOUT WDCLK

R18 CHANNEL4243

CHANNEL7-

WDCLK

AL1101

B

B

ANALOG INPUTS
J1 AGND CHANNEL8CHANNEL8+ CHANNEL7CHANNEL7+ CHANNEL6CHANNEL6+ CHANNEL5CHANNEL5+ CHANNEL4CHANNEL4+ CHANNEL3CHANNEL3+ CHANNEL2CHANNEL2+ CHANNEL1CHANNEL1+ AGND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CON20

TO CONTROLLER CARD
J2 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 VCC +5VA C21 10uF/25V DGND VCC DATA5-6 DATA7-8 DGND INDUCTOR L1

VCC J3 C22 10uF/25V DGND DGND 1 2 CON2

DIGITAL POWER INPUT (+5VDC)

WDCLK DATA1-2 DATA3-4

A

A

HEADER 10X2

PreSonus Audio Electronics, Inc.
Title

DIGIMAX Alesis AL1101 Converter Board
Size B Date:
5 4 3 2

Document Number 400-DMAXADC Tuesday, August 22, 2000

Schematic Path f:\digimax\orcad\dmaxadc.dsn Sheet
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