dCS 974 User Manual

Manual for Software Version 1.0x

dCS Ltd

May 2001

 

 

PCM to DSD

From PCM in ANY format: AES, SPDIF, Toslink or SDIF-2 at sample rates: 44.1k, 48k, 88.2k or 96kS/s

or

Dual AES at 88.2k, 96k, 176.4k or 192kS/s

or

Quad AES at 176.4 or 192kS/s

 

AES / EBU INPUTS

 

AES / EBU REFERENCE LOOP

SPDIF

PUSH

PUSH

PUSH

PUSH

PUSH

IN

OUT

 

 

 

 

 

 

 

 

 

 

 

RCA

 

 

 

 

IN

OUT

 

AES 1

AES 2

AES 3

AES 4

AES CLK OUT

SYNC INPUT

BNC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOS

DSD / SDIF

CH1 IN

CH2 IN

REMOTE

 

 

IN

WCLK IN

LOOP OUT

 

 

 

LOOP

 

 

OUT

CH1 OUT

CH2 OUT

MAINS FUSE (2AT) ON OFF

 

 

LOOP IN

WCLK OUT

 

AES / EBU OUTPUTS

DSD Quad

DSD SDIF-2

 

or DSD SDIF-3

Figure 10 – PCM to DSD conversion

The dCS 974 converts PCM to DSD (including 176.4 kS/s to DSD) using the arrangement given below:

do this: Connect any digital audio source of any wordlength between 8 and 24 bits, using single, Dual or Quad AES to the AES inputs, or using single or double speed SDIF-2 to the SDIF-2 inputs, or using single wire SPDIF to the appropriate SPDIF input, and select the input accordingly.

do this: Set Output Mode to DSD SDIF-2 or DSD SDIF-3. Choose a Filter if you wish.

do this: Output SDIF-2 via the DSD/SDIF connectors, two data cables and one word clock or SDIF-3 with just two data cables.

do this: Alternatively, take the DSD Quad output from the AES 1, 2, 3 and 4 outputs.

Sample Rate Conversion settings:

Sample Rate Conversion:

On

Audio Input Select:

Any, even including Dual AES or Quad AES at

 

higher Input Sample Rates

Sync Source:

Any

Input Sample Rate:

Any

Output Sample Rate:

n/a

Output Mode:

DSD

Filter:

Any

Output Wordlength:

n/a

Noise Shaping:

n/a

Dither:

n/a

Detect Silence:

n/a

As an example, load Store H to take an input from AES1 and convert it to DSD SDIF-2 or DSD Quad format.

Manual part no: DOC1241121A1

Page 26

Document No: OS-MA-A0124-112.1A1

Contact dCS on + 44 1799 531 999

email to: more@dcsltd.co.uk

(inside the UK replace + 44 with 0)

web site: www.dcsltd.co.uk