DCS dCS 974, Digital to Digital Converter Multi-channelSample Rate Conversion – bit aligned sources

dCS 974 User Manual	Manual for Software Version 1.0x
dCS Ltd	May 2001

Multi-channel Sample Rate Conversion – bit aligned sources

	AES / EBU INPUTS			AES / EBU REFERENCE LOOP		SPDIF		CH1 IN	CH2 IN	REMOTE
PUSH	PUSH	PUSH	PUSH	PUSH	IN		OUT
										IN
						RCA		WCLK IN	LOOP OUT
							SDIF/			LOOP
				IN	OUT					OUT
AES 1	AES 2	AES 3	AES 4	AES CLK OUT	SYNC INPUT	BNC	DSD	CH1 OUT	CH2 OUT	MAINS FUSE (2AT)	ON OFF
								LOOP IN	WCLK OUT
						TOS
	AES / EBU OUTPUTS
	AES / EBU INPUTS			AES / EBU REFERENCE LOOP		SPDIF		CH1 IN	CH2 IN	REMOTE
PUSH	PUSH	PUSH	PUSH	PUSH	IN		OUT
										IN
44.1kS/s
						RCA		WCLK IN	LOOP OUT
SOURCE				IN	OUT		SDIF/			LOOP
AES 1	AES 2	AES 3	AES 4					CH1 OUT	CH2 OUT	OUT
				AES CLK OUT	SYNC INPUT	BNC	DSD			MAINS FUSE (2AT)	ON OFF
								LOOP IN	WCLK OUT
						TOS
	AES / EBU OUTPUTS
	AES / EBU INPUTS			AES / EBU REFERENCE LOOP		SPDIF		CH1 IN	CH2 IN	REMOTE
PUSH	PUSH	PUSH	PUSH	PUSH	IN		OUT
										IN
						RCA		WCLK IN	LOOP OUT
										LOOP
AES 1	AES 2	AES 3	AES 4				SDIF/	CH1 OUT	CH2 OUT
				IN	OUT					OUT
				AES CLK OUT	SYNC INPUT	BNC	DSD			MAINS FUSE (2AT)	ON OFF
								LOOP IN	WCLK OUT
						TOS
	AES / EBU OUTPUTS
	AES / EBU INPUTS			AES / EBU REFERENCE LOOP		SPDIF		CH1 IN	CH2 IN	REMOTE
PUSH	PUSH	PUSH	PUSH	PUSH	IN		OUT
										IN
						RCA		WCLK IN	LOOP OUT
							SDIF/			LOOP
				IN	OUT					OUT
AES 1	AES 2	AES 3	AES 4	AES CLK OUT	SYNC INPUT	BNC	DSD	CH1 OUT	CH2 OUT

Figure 13 – Multi-channel Sample Rate Conversion with bit aligned source

96kS/s Ch1 & 2

96kS/s

Ch3 & 4

96kS/s Ch5 & 6

96kS/s Ch7 & 8

If the source data is bit aligned (for example, from a multitrack recorder) up to four or five dCS 974’s may be set to operate synchronously using the sync link connections shown above, from one unit’s AES CLK Out to the next unit’s AES Ref Loop In. For all units, set the Multiple Channel Sync option to On. The top unit will set up as a master, the other ones will set up as slaves. Make sure that all the other settings are the same on each unit.

See the section Multiple Channel Sync’ing, page 81 for how aligned is bit aligned.

These are set up, for PCM in to DSD out, in Store E, and for PCM in to 96kS/s out in Store F.

Manual part no: DOC1241121A1 Page 29 Document No: OS-MA-A0124-112.1A1

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