7837CD2, 7837CD2-A4, 7837CD2-A8

The 7837CD2 line of composite analog to serial digital video converters are dual broadcast quality video decoders. The 7837CD2-A4 and the 7837CD2-A8 versions offer four (two per decoded channel) or eight (four per decoded channel) high quality analog audio A/D converters. Advanced 3D adaptive comb filtering technology is utilized to eliminate moving artifacts introduced during the decoding process. This makes the 7837CD2 series ideal for use in applications where the signal is destined to enter compression systems. The 7837CD2 series utilizes 12 bit video ADCs for superior precision and image quality.

The 7837CD2 series is fully SNMP enabled when used in conjunction with a 7700FC frame controller card. With full SNMP capabilities, the 7837CD2 series can also be controlled by any SNMP enabled Evertz control panel like the CP-2232E, amongst others. In addition to SNMP control, the 7837CD2 series can be controlled locally used its internal On-Screen-Display capabilities.

特点

• One input BNC per channel
• 75Ω or Hi-Z input impedance (jumper configurable)
• Two SD-SDI outputs per per channel without OSD text
• One composite analog video output with OSD text for card control
• One composite analog reference input (NTSC or PAL-B) on BNC with 75Ω or Hi-Z input impedance (jumper configurable). One time base for both channels
• Video frame synchronizer
• Infinitely variable output phase (27MHz clock increments)
• Freeze modes: black, freeze
• Comprehensive on screen display for module config

• The Features of the Decoding Process

• 12 bit sampling of input analog video
• Advanced 3D adaptive video decoding
• Mode for support of non-time base corrected signals
• User configurable luma detail enhancement
• User selectable noise reduction
• Chroma AGC available, if desired
• User adjustable input video processing functions: black level, gain, hue, and saturation

• The Features of "-A4" and “-A8” Option

• 4 balanced analog audio inputs (two stereo pair) on 7837CD2-A4
• 8 balanced analog audio inputs (four stereo pair) on 7837CD2-A8
• High impedance inputs (user supplies termination resistors for other impedances)
• Analog audio levels are software selectable (separate controls for coarse/fine)
• Audio delay tracks video delay
• Additional audio delay up to 2.5 seconds
• Audio advance of up to 1 frame
• 2 channels (1/2 group) of audio is multiplexed onto each of the outgoing digital video signals (7837CD2-A4)
• 4 channels (one full group) of audio is multiplexed onto each of the outgoing digital video signals (7837CD2-A8)
• 2 unbalanced AES audio outputs using BNC connectors (7837CD2-A4)
• 4 unbalanced AES audio outputs using BNC connectors (7837CD2-A8)

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