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5 4 3 2 1 VCC C1 DGND VCC D 3 0.1uF Q1 MMBT3904 J1 1 2 CON2 VCC C2 DGND R1 475 C3 22pF DGND 1 2 D U1 24 VDD 0.1uF R3 475 10 R2 LRCLK I/O BNC CONNECTORS VCC DGND DGND VCC VCC DGND DGND 6 3 4 21 20 23 2 5 22 OPDIGIN FMT0 FMT1 ERR HOLDERR LIN MODE0 MODE1 MUTE OPTHRU OUT1/2 OUT3/4 OUT5/6 OUT7/8 USER0 USER1 USER2 USER3 DVCO SVCO WDCLK BCLK GND 19 10 11 12 13 14 15 16 17 18 7 8 9 MCLK BCLK DGND 3 D1 MMBD914 1 3 TP1 TP U2 7 1Y 1C0 1C1 1C2 1C3 2C0 2C1 2C2 2C3 A B 1G 2G 6 5 4 3 10 11 12 13 14 2 1 15 FsSEL0 FsSEL1 DGND DGND R4 2.21K D2 MMBD914 MCLK BCLK EXTFsIN FsAVR DGND C4 VCC U3 TC7SU04F U4 9 7 6 5 3 2 4 13 12 14 15 1 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 CLK RST 10 11 DGND 3 C AL1402 1 TP TP2 9 TP3 TP 16 C5 0.1uF 8 DGND 2Y 1 DGND 5 0.1uF 2 DGND VCC LRCLK LRCLK VCC RESET MONITOR NOTE: PINS 2 & 3 ARE SWAPPED FROM THE DATA SHEET TO MATCH THE STANDARD SOT-23. R5 22.1K RSTn C7 1uF/50V U5 VCC RSTn 1 + OUT VSS TC54 (SOT23) DGND VCC R7 22.1K VCC R8 22.1K FsSEL0 FsSEL1 FsSWITCH INT_EXTSW R13 DGND VCC 22.1K DGND C11 22pF DGND C14 22pF AK-CS EXTFsIN AK-CS U6 AT90S2313 2 DGND 3 VCC GND 4 74HC153 C VCC LED32K LED44K LED48K VCC J2 1 2 3 4 CON4 MOSI MISO SCK MOSI MISO SCK SAMPLE RATE LEDS VDD 16 VCC C6 0.1uF DGND R6 1M Y1 VSS 8 DGND 11.2896MHz C8 22pF DGND C9 22pF DGND 74HC4040 VCC R9 22.1K PB0(AIN0) PB1(AIN1) PB2 PB3(OC1) PB4 PB5(MOSI) PB6(MISO) PB7(SCK) VCC 12 13 14 15 16 17 18 19 20 + 10 DGND C13 0.1uF VCC VCC R10 22.1K VCC R11 22.1K R12 22.1K J3 CON4 1 2 3 4 1 2 3 6 7 8 9 11 5 Y2 7.68MHz 4 RST PD0(RXD) PD1(TXD) PD2(INT0) PD3(INT1) PD4(T0) PD5(T1) PD6(ICP) XTAL1 TO ADC CARD JP1 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 VCC + GND DGND MCLK DATA5-6 DATA7-8 DATA5-6 DATA7-8 C10 10uF/25V FsAVR SWITCHES VCC C12 1uF/50V DATA1-2 DATA3-4 LRCLK BCLK DATA1-2 DATA3-4 XTAL2 GND HEADER 10X2 B B 6 4 2 JP8 HEADER 3X2 5 3 1 DGND A A PreSonus Audio Electronics, Inc. Title DIGIMAX Controller/Clock Generator Size C Date: 5 4 3 2 Document Number 400-DMAXCONT Monday, June 05, 2000 1 Schematic Path f:\digimax\orcad\dmaxcont.dsn Sheet 1 of 3 Rev A 5 4 3 2 1 D C15 0.1uF VCC 1 R14 C16 0.1uF DGND U7 7 35 28 R16 33 1 32 R17 31 30 27 26 R19 25 24 1 R20 U1 U2 U3 U4 CKS0 CKS1 DIF0 DIF1 DIF2 38 39 40 41 R21 21 23 34 36 37 DGND DGND DGND DGND DGND R23 75 JP7 1 3 5 R24 DGND R25 93.1 374 2 4 6 DGND 2 374 75 JP6 1 3 5 2 4 6 DGND R22 93.1 C21 0.1uF 1 2 93.1 C20 0.1uF R18 374 75 JP5 1 3 5 2 4 6 DGND 2 93.1 C19 0.1uF TXP1 TXN1 TXP2 TXN2 LRCLK BCLK MCLK RST TXP4 FS0/CS FS1/CDTI FS2/CCLK FS3/CDTO C1 C2 C3 C4 ANS BLS TRANS V1-2 V3-4 TXN4 TXP3 TXN3 C17 0.1uF C18 0.1uF R15 374 75 JP4 1 3 5 2 4 6 DGND 2 T1 PE-65612 3 D 4 HEADER 3X2 DVDD DVDD DVDD T2 PE-65612 3 DATA1-2 DATA3-4 DATA5-6 DATA7-8 LRCLK BCLK MCLK RSTn AK-CS MOSI SCK MISO DATA1-2 DATA3-4 DATA5-6 DATA7-8 LRCLK BCLK MCLK RSTn AK-CS MOSI SCK MISO 3 4 5 6 10 9 2 1 11 12 13 14 15 16 17 18 SDTI1 SDTI2 SDTI3 SDTI4 4 1 6 2 7 3 8 4 9 5 3 DGND 4 CONNE