Arcam RDAC - User Manual download pdf (Page 3)

Mainmicrocircuitpage2

ThemainmicroatlocationIC107(onthediagramthisissplitintotwoareathesearemicro

powerandconfig+MicroI/O)wewilldealwithMicropowerandconfig1

.

Micropowerandconfig

TwoseparatepowersuppliesarerequiredbytheAT91SAMthesearetakenfrom3V3and1V8

fortheprocessorcore–themicroisprogrammedwithbespokeArcamcodetheoscillatorfor

themicroisatX101andrunsat4MHztheTDITDOTCKTMSERASENRSTpinsare

for

developmentDebuguseandtheconnecteratlocationCON103isnotfittedtoproductionitems

MicroI/O



Pindescriptions

Pinname Description

SPDIFINT InterruptflagfromtheSPDIFreceiver

Source TosourceselectTACTswitch

MuteRLY ControlofmuterelayviaTR100

DACMUTE DACMUTEsignaltoPin25ofWolfsonDACatlocationIC301

ENABLEKLEER ToMUXatlocationIC205A

ENABLESPDIF ToMUXatlocationIC202A

SERIALUCtoKLEER SerialcontroltoKLEERwirelessoption

SERIALKLEERtoUC SerialdatafromKLEERtoUC

SCL ToEEpromatlocationIC108/DACatlocationIC301/USBreceiverat

IC103

SDA ToEEpromatlocationIC108/DACatlocationIC301/USBreceiverat

IC103

EnableLEDS LEDsoncontrol

LED0 BinaryselectforLEDcontrolvia3–8linedecoderatlocationIC102

LED1 BinaryselectforLEDcontrolvia3–8linedecoderatlocationIC102

LED3 BinaryselectforLEDcontrolvia3–8linedecoderatlocationIC102



1 2 3 4 5 6 7 8 ... 13 14

No comments

Arcam RDAC - User Manual Page 3