Tascam IF-AE8 - Manual (Page 6)

IF-AE8 Digital Audio Converter
6
TASCAM IF-AE8
B WORD SYNC OUT
This BNC connector outputs a word clock based on
the word clock source selected using the
CLOCK
switch 3.
NOTE
This may or may not be the same as the clock
received at WORD SYNC IN A and retrans-
mitted through WORD SYNC THRU
C . How-
ever, it is always the word clock selected
using the CLOCK switch
3 .
C WORD SYNC THRU
This BNC connector echoes the word clock signal
received at
WORD SYNC IN A. It may or may not
be the same signal as is output at WORD SYNC
OUT B. It is auto-terminating.
3 Application example
In this example, the original material (from two
sources) has been mixed to DAT, and has been pro-
duced in both professional and consumer formats,
and at both 44.1 kHz and 48 kHz sample rates.
The final master data will be recorded and coded on a
computer-based system, with an AES/EBU interface.
Here, the two DAT recorders are fed through the
IF-AE8. Since the resulting data will be at 44.1 kHz,
the DAT playing back the material at 44.1 kHz
(DAT 1) is selected to act as the clock master.
Since the TDIF-1 I/O is not used here, the DIGITAL
OUT switch 4 is set to DIGITAL IN .
The word clock is therefore derived from this, and
used to resample the 48 kHz material from
DAT 2 ,
and the Fs RATE CONVERT switch 6 is set to
CONVERT .
The mastering system takes its word clock through
the
AES/EBU data from the appropriate DIGITAL
OUT of the IF-AE8.
The DIGITAL OUT FORMAT switch 5 is set to
PRO , so that the data coming from DAT 2 is con-
verted to professional format data.
4 Specifications
IF-AE8
DAT 1
DAT 2
AES/EBU audio in
Mastering
system
44.1 (P)*
48 (C)
44.1(P)
DIGITAL OUTPUTs (1–2,
3–4, 5–6, 7–8) XLR-type, balanced outputs
DIGITAL OUTPUT output
format Switchable between
professional (AES3-1992)
and consumer (IEC-60958
TYPE II) formats
DIGITAL INPUTS (1–2, 3–4,
5–6, 7–8) XLR-type
DIGITAL INPUT input format Auto-detect professional
(AES3-1992) and consumer
(IEC-60958 TYPE II) formats
D IGITAL I/O (TDIF-1) Conforms to TDIF-1
specification
Clock source Any of AES/EBU DIGITAL
INPUTS, TDIF-1, or WORD
SYNC IN (front panel
selection)
LOCKED indicator Lights when valid clock
source received at selected
input
Valid input Fs rates 48 kHz, 44.1 kHz, 32 kHz
Valid output rates 48 kHz, 44.1 kHz, 32 kHz,
taken from CLOCK source
Word length Up to 24 bits TDIF-1,(20 bits
with Fs conversion), 20 bits
AES3-1992
WORD SYNC IN 75
Ω
WORD SYNC OUT 75
Ω
, reproduces clock
selected from front panel
switch
WORD SYNC THRU 75
Ω
(auto terminating),
echoes clock at WORD
SYNC IN
Dimensions (w x h x d) 428 x 48 x 194.8 (mm)
16.9 x 1.9 x 7.7 (in.)
Weight 2.6 kg (5.7 lbs)
Power supply 120V (UL), 230V (Europe,
Australia)
Power consumption 6 W
Supplied accessories Rack mounting kit