American Audio PSX - REV 1-2 Bedienungsanleitung Seite 24

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Seitenansicht 23
88.2/96 kHz Operation
Press & hold A/D SYNC button to enter FAST (88.2/96 kHz) mode. See press & hold buttons section.
Note that when the
x2Fs LED is lit, both digital inputs and digital outputs are operating at the 88.2/96 kHz
formats. It is not possible for example, to do A/D conversion at 88.2 kHz but D/A at 44.1 kHz.
There are no MDM output format options in FAST mode: ABS-96 is used, with the format indicated below.
Meanwhile, the AES and S/PDIF outputs operate double-wide (double wire) or double-fast (single-wire)
according to the setting of rear panel DIP switch #9 UP for double-wire and DOWN for single-wire operation.
Given an 88.2/96 kHz datastream comprised of L1, R1, L2, R2 = A, B, C, D (where L=left, 1 occurs before 2)
T8 = tone, A16 = upper 16-bits of sample A, A8 =lower 8 bits of sample A:
MDM 88.2/96 kHz (ABS-96) Format
Channel 88.2/96 kHz
1 A16
2 B16
3 C16
4 D16
5 T8+A8
6 T8+B8
7 T8+C8
8 T8+D8
The AES outputs AES1 and AES2 can operate similarly:
Double-wire AES 88.2/96 kHz Format (DIP switch 9 UP)
Channel Normal ABS
AES1 LEFT L16 L1 24-bits
AES1 RIGHT R16 L2 24-bits
AES2 LEFT L16 R1 24-bits
AES2 RIGHT R16 R2 24-bits
NOTES:
The S/PDIF output and AUX outputs drop every other sample and transmit as usual at 44.1/48 kHz.
The digital inputs are expected to be formatted as above at 88.2/96 kHz.
Locking to S/PDIF when in FAST mode is inhibited.
Due to the use of both AES 1 and 2 connectors for a single stereo path in FAST mode, the functionality
available at 44.1/48 kHz is not available at 88.2/96 kHz sample rates.
88.2/96 kHz Word Clock and TDIF
DIP switch 1 selects WC as the clock source for TDIF. This operates as follows:
In FAST mode (x2Fs), with A/D SYNC set to WC (Word Clock) and D/A INPUT set to TDIF, the PSX-100 will
expect a 44.1/48 kHz Word Clock. If the D/A INPUT is something other than TDIF, then the unit will expect a
FAST Word Clock (88.2 or 96 kHz).
PSX-100 Users Manual
Page 24
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