AD1928
Rev. B | Page 23 of 32
Table 13. Pin Function Changes in TDM-AUX Mode (Replication of Table 12)
Mnemonic Stereo Modes TDM Modes AUX Modes
ADCTDMOUT NC ADC TDM Data Output TDM Data Output
ASDATA1 ADC1 Data Output ADC TDM Data Input AUX Data Output 1 (to External DAC 1)
DSDATA1 DAC1 Data Input DAC TDM Data Input
TDM Data Input
DSDATA2 DAC2 Data Input DAC TDM Data Output
AUX Data Input 1 (from External ADC 1)
DSDATA3 DAC3 Data Input DAC TDM Data Input 2 (Dual-Line Mode)
AUX Data Input 2 (from External ADC 2)
DSDATA4 DAC4 Data Input DAC TDM Data Output 2 (Dual-Line Mode)
AUX Data Output 2 (to External. DAC 2)
ALRCLK ADC LRCLK Input/Output ADC TDM Frame Sync Input/Output
TDM Frame Sync Input/Output
ABCLK ADC BCLK Input/Output ADC TDM BCLK Input/Output
TDM BCLK Input/Output
DLRCLK DAC LRCLK Input/Output DAC TDM Frame Sync Input/Output
AUX LRCLK Input/Output
DBCLK DAC BCLK Input/Output DAC TDM BCLK Input/Output AUX BCLK Input/Output
AUX
ADC 1
LRCLK
BCLK
DATA
MCLK
AUX
ADC 2
LRCLK
BCLK
DATA
MCLK
AUX
DAC 1
AUX
DAC 2
LRCLK
BCLK
DATA
MCLK
LRCLK
BCLK
DATA
MCLK
30MHz
12.288MHz
SHARC IS RUNNING IN SLAVE MODE
(INTERRUPT-DRIVEN)
SHARC
AD1928
TDM MASTER
AUX MASTER
FSYNC-TDM (RFS)
RxCLK
RxDATA
TxCLK
TxDATA
TFS (NC)
ASDATA1
DSDATA4
DBCLK
DLRCLK
DSDATA2
DSDATA3
MCLKI/XI
ADCTDMOUT
ALRCLK ABCLK DSDATA1
06623-026
Figure 26. Example of AUX Mode Connection to SHARC® (AD1928 as TDM Master/AUX Master Shown)
