EMM Labs DAC8 MKIV - Manual (Page 6)

5
Table 1: Functional Modes of A/D
Basic Operation
In addition to the basic conversion modes shown below, the ADC8 Mk IV
converts between DSD on optical and DSD on BNC (RAW DSD or SDIF-3)
and back again.
Conversion from Analog to DSD and PCM
“Empty” switches are ignored.
Note: DSD and PCM is only generated simultaneously when the base frequency 44.1kHz and
1FS are selected.
Note: The PCM sample rate of 2FS can only be selected for the oversampling ratio of 64FS
Optional selections:
• Oversampling ratio 64FS / 128FS: this changes the bit rate of the DSD
output. No optical DSD output is generated for 128FS. When 128FS is
selected DSD is generated at 128FS in either RAW DSD or SDIF-3 format.
• Wordlength of PCMOUT 16bit / 24 bit
• The PCM data can also be routed to the BNC outputs (SDIF-2 format) with
the DSD / PCM switch.
Conversion BNC Analog In AES/EBU Optical In Optical Out
Analog to
DSD, PCM
DSD Out In PCM Out - DSD Out
Analog to
DSD, PCM
PCM Out
(SDIF-2)
In PCM Out - DSD Out
DSD to DSD,
PCM
DSD In - PCM Out - DSD Out
DSD to DSD,
PCM
DSD Out or
PCM Out
- PCM Out DSD In DSD Out
EXTERNAL
LOCK BNC
OPTIC
EXT
INT
CLOCK
BASE PCM OVERS.
128
64
2 FS
1 FS
48
44.1
SAMPLE RATE
DATA-DIR
IN
OUT
BNC
OPTIC
PCM OUT OPTIC BNC
RAW DSD
SDIF-3 PCM
DSD
2 24 BIT
16 BIT
INTERFACE FORMAT DIGITAL AUDIO IN