User manual GRASS VALLEY 8921DAC DATASHEET

[. . . ] [. . . ] D-to-A Convertion Balanced Analog Audio 1&2 AES 1 AES 2 AES 3 AES 4 17 The 8921DAC provides conversion of two digital audio streams, either balanced or unbalanced, to four analog audio outputs. In addition to digital to analog conversion, it offers per-channel independent delay with up to 5 seconds per channel. Its various modes enable modification of the outgoing analog signal, such as channel gain, swapping, channel summing, phase inversion, and more. Many adjustments to this card can be performed directly on the module's card-edge controls while a few of the more complex adjustments require the Web-based interface or the Newton control panel. Pin 3 + Pin 2 _ Pin 1 G 8900A-R J1 J2 J3 J4 J5 J6 J7 J8 J9 G Pin 1 _ + Pin 2 Pin 3 Analog Audio Out 1 Analog Audio Out 3 AES Out 1 AES Out 2 AES 1 A/B In AES 1 A/B In Analog Audio Out 2 Analog Audio Out 4 AES Out 3 AES Out 4 AES 2 C/D In AES 2 C/D In J11 J12 J13 Not Used J14 Not Used AES Input 1 AES Input 2 Unbalanced Balanced D-to-A Convertion Balanced Analog Audio 3&4 Local Control Microprocessor LEDs Ethernet Control via frame bus Specifications Supported Frame Types GeckoFlex with 8900A-R GeckoFlex Audio rear module, Gecko audio frames: 8900TX-A, 8900TF-A, 8900TFN-A Ordering Information Analog Output Number of outputs: Four channels, single output each channel Output impedance: 5 single-ended and 10 differential Connector type: Mini-screw terminal block This module can be mounted in a GeckoFlex frame when ordered with the 8900A-R GeckoFlex Audio Rear module. 8921DAC Four-channel audio digital-to-analog converter with delay Power Rating 8 Watts ­ single slot Digital Input Digital audio input signal: ·Balanced:AES-3id-1992 ·Unbalanced:AES-3id-1995 Number of inputs: Two balanced or unbalanced Connector type: ·Balanced:mini-screwterminalblock ·Unbalanced:BNC Common mode range: ·Balanced:20Vp-pDC­20kHz ·Unbalanced:N/A Sampling rate: Input sampling rate 32 to 96 kHz and output sampling rate 48 kHz Input return loss: >25 dB (100 kHz to 10 MHz) Input impedance: ·Balanced:110 ·Unbalanced:75 Performance Signal/noise ratio: >104 dB unweighted 22 kHz filter, >107 dB "A" weighted THD + noise swept, 20 Hz to 20 kHz: >0. 01% 22 kHz filter, +24 dBu (­80 dB) Interchannel crosstalk: <­100 dB 20 Hz to 20 kHz Frequency response: ±0. 1 dB 20 Hz to 20 kHz wrt 1 kHz @ 48 kHz 8900-A-CBL (Gecko Frames only) Package of four three-terminal to dual BNC cables, used for unbalanced outputs on modules in a Gecko frame 8900-GFA-CBL (GeckoFlex Frames only) Package of four three-terminal to dual BNC cables, used for unbalanced outputs on 8900A-R modules in a GeckoFlex frame Other Operating temperature range: 0° to 45°C Non-operating temperature range: ­10° to +70°C Humidity: 10% to 90% non-condensing For detailed specifications, installation, and setup instructions see: www. grassvalley. com/docs/modular [. . . ] [. . . ]