User manual APOGEE ROSETTA 800

[. . . ] TEL: (310) 915-1000, FAX: (310) 391-6262 email: support@apogeedigital. com. Web: http://www. apogeedigital. com/ APOGEE ELECTRONICS CORPORATION warrants this product to be free of defects in material and manufacture under normal use for a period of 12 months. The term of this warranty begins on the date of sale to the purchaser. Units returned for warranty repair to Apogee or an authorized Apogee warranty repair facility will be repaired or replaced at the manufacturer's option, free of charge. [. . . ] 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. 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. 5 · AES ­ the AES input is scanned and clock is derived from the first valid AES signal found. 6 · AES + DW - the AES input is scanned and clock is derived from the first valid AES signal found. · 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. For example, to run the Rosetta 800 at an 88. 2kHz sample rate while outputting a 44. 1kHz word clock, set the SAMPLE RATE to 88. 2, maintain the SYNC button depressed while pressing the SAMPLE RATE button until both 44. 1 and 48 LEDs light. 5 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Navigating the Front Panel - continued 4 5 9) The clock circuitry of a typical D-to-A converter must be designed as a compromise between the ability to attenuate input signal jitter and the ability to accept any bitstream, regardless of it's stability. The more the clock is allowed to track timing variations of the input, the more jitter remains in the clock at the conversion stage, with the degradation of conversion quality as a result. The ROSETTA 800's Dual Stage Clock overcomes this compromise by employing one clock stage to accept the bitstream and store bits in a buffer, and a second stage to clock bits out of the buffer to the conversion stage. The first stage is optimized to track timing variations of the input, while the second stage is optimized to attenuate jitter and ensure that conversion takes place with the lowest jitter clock possible. 10) When the Rosetta 800 is running at the 176. 4 ­ 192 kHz sample rate range, neither ADAT nor ADAT + S/MUX may be selected. 4) LOCK - These LEDs indicate the Lock status of the Rosetta 800's dual stage clock. 9 5) SOURCE TO DIGITAL OUTS ­ This parameter configures the first of two available signal paths by selecting the input source(s) routed to ALL digital outputs. [. . . ] 12 9 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Configuration Examples CONFIGURATION #2 : continued To configure the Rosetta 800 to convert an ADAT input to AES for recording on an AES digital device, while monitoring the AES device output via the ANALOG OUTs, make the FRONT PANEL SELECTIONS and REAR PANEL CONNECTIONS as follows: FRONT PANEL SELECTIONS Select "ADAT" as SOURCE TO DIGITAL OUTS Select "AES" as SOURCE TO ANALOG OUT REAR PANEL CONNECTIONS AES IN/OUT from/to AES device ie. computer based DAW, MDM, DAT machine, etc. 10 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Configuration Examples - continued CONFIGURATION #3 (advanced settings) : To configure the Rosetta 800 to accept 6 channels of analog input and 2 channels of AES input for recording on an ADAT digital device while monitoring the ADAT device output via the ANALOG OUTs, make the FRONT PANEL SELECTIONS and REAR PANEL CONNECTIONS as follows: FRONT PANEL SELECTIONS Select "AES" and "ANALOG" as SOURCE TO DIGITAL OUTS (refer to "SOURCE TO DIGITAL OUTS Advanced Settings" on page 6) Select "ADAT" as SOURCE TO ANALOG OUT REAR PANEL CONNECTIONS AES IN/OUT from/to AES device ie. CD burner, DAT machine, hard disk recorder, etc. ANALOG IN From mixing console or other analog source ANALOG OUT To monitor system ADAT IN/OUT from ADAT device ie. 12 11 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Configuration Examples - continued FLOW DIAGRAM CONFIGURATION #1: Source to Analog Outs button To Analog Outputs ADAT In OPTION In AES In ANALOG In SOFT LIMIT A/D To ADAT Out Source to Digital Outs button To OPTION Out UV22HR To AES Out AES DEVICE FLOW DIAGRAM CONFIGURATION #3 (advanced settings) : Source to Analog Outs button To Analog Outputs ADAT In OPTION In AES In ANALOG In SOFT LIMIT A/D To ADAT Out Source to Digital Outs button To OPTION Out UV22HR To AES Out ADAT DEVICE 12 ROSETTA 800 ­ User's Guide APOGEE ELECTRONICS Internal Adjustments ANALOG INPUT/OUTPUT CALIBRATION Calibration levels for the Analog Inputs and Outputs are set with internal jumpers. [. . . ]