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Anleitung Zusammenfassung
website. ...............................................................................28 9034-SD Owner’s Manual • •••• (V 2.0) Page 5 of 28 Introduction In This Chapter This chapter includes the following sections: • A Word of Thanks • Overview • Functional Block Diagram • Supported Audio and Video Formats • Documentation Terms A Word of Thanks Congratulations on choosing the openGearTM 9034-SD Analog to Digital Converter with Audio Embedding and Frame Sync. The 9034-SD is part of a full line of modular conversion gear for broadcast TV environments. The Cobalt Digital openGearTM line includes video decoders and encoders, audio embedders and de-embedders, distribution amplifiers, format converters, and much more. Cobalt openGearTM modular conversion gear will meet your signal conversion needs now and well into the future. Should you have questions pertaining to the installation or operation of your 9034-SD, please contact us at the numbers listed on the back cover of this manual. We are happy to help with any questions regarding this or any other openGearTM card. Overview The 9034-SD is a high quality format converter that also includes a full 16 channel audio embedder, a 12-bit analog to digital video converter, a 8 channel 24-bit balanced analog to digital audio converter, and a full video frame synchronizer. The 9034-SD has a full featured, high quality, 12-bit analog to 10-bit serial digital converter. The SD analog video input can accept both NTSC and PAL. The embedder functions like an audio router internal to the card. On the input side of the router are the up to 16 channels (8 pairs) of discrete AES input, up to 8 channels of differential analog audio input. On the output side are the up to 16 channels of embedded AES audio, and the up to 16 channels (8 pairs) of discrete AES output. The router acts as a full audio cross point: each of the 32 output channels (16 embedded AES, 16 discrete AES) can receive signal from any one of the 29 (16 discrete AES, 8 Analog, 4 tone generator, 1 silence) input channels. Each output also allows gain adjustment and optional polarity inversion. Page 6 of 28 9034-SD Owner’s Manual • •••• (V 2.0) Audio rates are always 48kHz nominally but discrete AES inputs pass through sample rate converters to align them with the output timing. The sample rate converters can be disabled if necessary. Output AES is always precisely locked in time with the output video. Analog audio is differential input and sampled at 48 kHz with 0 dbFS digital equivalent to a +24 dBu analog. There are several advanced features available for the AES inputs. These include input sample rate converter bypass, low-latency embedding of AES inputs, and AES input to output pass through. These are covered in more detail in the section: AES Audio Input Advanced Features. The product also provides full color processing control of the output video, with separate controls for Luma Gain, Luma Lift, Chroma Saturation and Color Phase. All card configuration is done with a simple front panel menu. There is a four character text display to view and control parameters, and a toggle switch and two buttons to navigate the menu. Card configuration can also be done over Dashboard remote control software. The input and outputs of the 9034-SD are the following: Input: One 3-BNC SD analog video input 4 dedicated AES input connections (AES input 5-6) 8 differential analog audio inputs Switchable Input/Outputs: 4 AES connections, switchable between input and output (AES input/output 1-4) Outputs: Two SD-SDI video outputs 8 dedicated AES output connections. (AES output 1-8) 9034-SD Owner’s Manual • •••• (V 2.0) Page 7 of 28 Functional Block Diagram The 9034-SD has a very flexible signal flow path and feature set that combines several products into one compact package. This section diagrams the basic signal flow of your 9034-SD product. Analog Video Input 9034 Block Diagram Audio Control: Routing Gain Polarity Diff. Analog Audio A/D AES Decode and SRC Dolby E Decode and SRC From AES or Embedded Audio 8 pairs 16 channels 8 channels Analog Video A/D Audio Embed AES Encode Video Proc: Gain, Lift, Saturation, Phase Video Video Serializer and Cable Driver 8 pairs 16 channels Frame Sync FS Tracking Delay + User Offset Figure 1. Simplified Block Diagram of 9034-SD Functions Supported Audio and Video Formats Input and Output Video The 9034-SD supports both NTSC and PAL SMPTE formats. Raster structure Frame Rate 486i1 29.97 575i1 25 Notes: 1. All rates displayed as frame rates, interlaced (“i”) field rates are two times the number shown. Analog Audio The 9034-SD supports 8 channels differential analog audio. The analog audio is converted in such a way as to make +24 dBu (analog) equivalent to 0 dBFS (digital). Discrete AES Audio Input The 9034-SD can accept 16 channels (8 pairs) of discrete AES audio on 75 ohm BNC connections. The AES must have a nominal rate of approximately 48 kHz. Sample rate conversion is employed to account ...