Specifications

Special notes and restrictions:
1. ADAT format cannot be transmitted while the AD-1000 is set to digital input “DIG.”
2. ADAT format cannot be transmitted and received simultaneously. As a result, the AD-1000 cannot be con-
nected in an optical “loop.”
3. While transmitting ADAT, the AD1000 outputs AES “black” - a sync signal with no data.
4. While synced to video, the AD-1000 will only transmit 44.056 kHz or 47.952 kHz sample rates in ADAT
mode.
5. While synced to either AES or S/PDIF, the AD-1000 will only output 44.100 kHz or 48 kHz sample rates in
ADAT mode.
6. While synced to an external Word Clock, any sample rate received can be transmitted.
Operating the AD-1000 with the Tascam DA-88
The Tascam DA-88, an eight channel modular digital multitrack (MDM) recorder, has only the proprietary TDIF
(Tascam Digital Interface) for its digital inputs. TDIF is specified as a 25-pin "D" connector which would take up
almost half of the AD-1000's rear panel. Since ADAT is also a eight-channel digital format which uses only the
small optical Toslink connector, Apogee decided it would be easiest to output the ADAT format and then con-
vert that signal to the TDIF format external to the AD-1000.
Thus was born the FC-8, Apogee's ADAT to TDIF (and vice-versa) format converter. The FC-8 is the simplest
and best way to get into a DA-88 digitally with the AD-1000. There are other devices that convert AES/EBU into
two channels of TDIF, but the FC-8 can be viewed as an extension of the AD-1000 itself and was designed to
be just that.
It would be useful to read the previous discussions regarding using the AD-1000 with ADAT, as the same basic
principles apply (i.e. the AD-1000 being a two channel device and the DA-88 being an eight- track recorder) and
in fact, you will primarily be using the ADAT output of the AD-1000 (and converting it to TDIF). Using the DA-
88 is somewhat more simple in that there is no BRC or master controller to contend with, but care must be taken
to ensure that all devices in the digital recording chain are properly referenced.
When recording onto a DA-88 digitally, a separate word clock must be provided to the DA-88, since the TDIF
receiver does not support a clock signal. The FC-8 will sync to the incoming ADAT signal and provide a Word
Clock output to be connected to the DA-88 Word Sync input. If using the IF-88AE (Tascam’s AES to TDIF
Converter), it will sync to the incoming AES and provide a Word Clock output. In both cases the DA-88 Clock
should be set to “WORD”.
Recording on to the DA-88 from an AD-1000
1. Connect the output of your console or microphones to the AD-1000 XLR input connectors.
2. Select the appropriate analog input (+4 CAL, –10 CAL, or MIC) on the INPUT SELECT switch.
3. Set the front panel power switch of the AD-1000 to ADAT when using the Apogee FC-8 Format Converter.
If using the Tascam IF-88AE, select NORM for an AES output.
4. Set the SYNC SOURCE switch to CRYSTAL.
5. Connect an optical cable from the OPTICAL OUTPUT of the AD-1000 to the ADAT IN of the FC-8. When view-
ing the AD-1000 from the rear, the optical output is on the right side. Alternatively, if using the IF-88AE, con-
nect an AES cable from the AES output of the AD-1000 to one of the AES inputs of the IF-88AE.
6. Connect a TDIF I/O cable (Tascam part number PW-88D) between the TDIF I/O connectors of the FC-8 (or
the IF-88AE) and the DA-88.
7. Connect a 75Ω BNC cable from the Word Clock output of the FC-8 (or the IF-88AE) to the Word Sync input
of the DA-88.
8. Set the clock of the DA-88 to “WORD”.
9. Select DIGITAL IN on the DA-88 and arm the desired tracks. Remember that the left channel of the AD-1000
will go to tracks 1, 3, 5 and 7, while the right channel goes to tracks 2, 4, 6 and 8 of the DA-88.
Note: When using the High Resolution option (AD1K-PRT) with the DA-88, follow the steps outlined in "20 Bit
Recording Using the ADAT" for coding and decoding the 20 bit signal to and from the DA-88. With the FC-8,
the AD-1000 will only see the ADAT I/O, so you can fool it into thinking that it is dealing with an ADAT machine.
AD-1000 Operating Manual
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