User manual APOGEE ROSETTA 800

[. . . ] 8-channel 24 bit, 96 & 192 kHz, AD/DA Converters User's Guide v1. 1 - March 2004 8-channel 24 bit, 96 & 192 kHz, AD/DA Converters v1. 1 - March 2004 User's Guide ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Warnings FCC warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to take whatever measures necessary to correct the interference at his own expense. Copyright Notice The Apogee Rosetta 800 is a computer-based device, and as such contains and uses software in ROMs. [. . . ] The LED goes out when the Rosetta 800 is powered on. Advanced Settings: Advanced settings are accessed by pressing and holding one front panel button while using a second button to modify values. These advanced settings are described in light gray boxes after the primary description of each button. 2) The 176. 4 and 192 values cannot be selected on the 96kHz version of the Rosetta 800. The unit may be upgraded to 192kHz operation at any time. 3) A different AES format may be selected for each sample rate range. 1)POWER SWITCH ­ The Power Switch may be configured to operate in the manner best suited to the installation of the unit. For example, if the Rosetta 800 is installed in a rack with a Master power switch, the unit's power switch may be configured appropriately. Please see the section of this manual entitled "Internal Adjustments" for details. 1 2) SAMPLE RATE ­ This parameter modifies operation in two distinct ways according to the value selected: 1) When any of the values 44. 1-192 are selected, the unit derives its clock from an internal crystal and runs at the selected sample rate. 2 2) When EXT is selected, the unit derives its clock from the source selected by the SYNC parameter; the 44. 1-192 LEDs now display the sample rate of the selected source. 4) When clocking to an AES input (i. e SYNC is set to AES), the format must be specified by selecting a SYNC value of either AES or AES + DW. 4 SAMPLE RATE Advanced settings: 3 When running at a sample rate between 88. 2-192 kHz, the Rosetta 800's AES I/O may be configured for Single wire or Double wire operation. 1) Select the desired SAMPLE RATE value. 2) Press and hold SAMPLE RATE to determine the current AES format, as indicated by the three DW LEDs on the front panel; if DW is on, the AES format is Double wire; if DW is off, the format is Single wire. 3) While pressing the SAMPLE RATE button, press the SYNC button to toggle DW (Double Wire) on or off. 4 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Navigating the Front Panel - continued 3 3) SYNC ­ When SAMPLE RATE is set to EXT, the SYNC parameter determines the source of the unit's clock. · ADAT ­ clock is derived from the ADAT input 1-8 with a resultant sample rate in the 44. 1-48kHz range. · ADAT + S/MUX ­ clock is derived from S/MUX Input 1-4 with a resultant sample rate in the 88. 2-96kHz range. · OPTION ­ clock is derived from the Option Card input. 5 · AES ­ the AES input is scanned and clock is derived from the first valid AES signal found. The signal is treated as Single wire format. 6 · AES + DW - the AES input is scanned and clock is derived from the first valid AES signal found. The signal is treated as Double wire format. · WC ­ clock is derived from the Word Clock In connector. 5) If no Option card is present, the Option value may not be selected. 6) When clocking to an AES input, the AES format must be specified by selecting a SYNC value of either AES or AES + DW, not via the SAMPLE RATE Advanced settings. 7) The Word Clock Out will always be the same frequency as the Word Clock In. 8 SYNC Advanced settings: 7 The Rosetta 800 may be configured to accommodate digital systems whose word clock signals run at a multiple of the sample rate frequency. 1) To configure the Rosetta 800 to sync to a word clock input of one frequency while running at a sample rate whose frequency is a multiple of the word clock: 1) 2) 3) Connect the word clock signal to the Word Clock In and set SYNC to WC. Press and hold the SYNC button to determine the current "target" sample rate range. While pressing the SYNC button, press the SAMPLE RATE button to toggle through the possible "target" ranges. For example, to sync the Rosetta 800 to a 44. 1kHz Word Clock input while running at 88. 2kHz, maintain the SYNC button depressed while pressing the SAMPLE RATE button the until both the 88. 2 and 96 LEDs light. 8) A different Word Clock configuration may be set for each sample rate range. 2) To configure the Rosetta 800 to sync to another source (internally or other SYNC values besides WC) and output a Word Clock signal whose frequency is a multiple of the sample rate frequency: 1) Set the unit to the desired clock source and sample rate 2) Press and hold the SYNC button to determine the current Word Clock Output frequency range. 3) While pressing the SYNC button, press the SAMPLE RATE button to toggle through the possible ranges. [. . . ] When connecting ADAT signals, use the Toslink connection labeled IN 1-8. When connecting S/MUX signals, use connector "1-4" for the first four channels and connector "5-8" for the second four channels. ADAT ­ S/MUX OUT - These Toslink connections provide ADAT or S/MUX format optical outputs according to the front panel configuration. When connecting ADAT signals, both Toslink connections provide a duplicate output. [. . . ]