Signal Processing Systems : Converters : Evertz - 7837CD2

Dual Composite Decoder

Model: 7837CD2

One input BNC per channel
75 Ohms 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 75? or Hi-Z input impedance (jumper configurable). One time base for both channels

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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.

One input BNC per channel
75 Ohms 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 75? 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
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

Converter Signal Types - Video
Converter Type - Analog to Digital Converter
Spec Sheet available - Yes

Input Signal Types: Video
Output (Converted) Signal Type: Video
Active Power: 17 Watt
DC Voltage: 12 Volts
Regulatory Compliance: FCC Part 15 Class A, EU EMC Directive
Analog Video Input - Standard: NTSC, SMPTE ST 170 PAL, ITU624-4
Analog Video - Number of Inputs: 1 per channel
Analog Video Input - Connector: BNC per IEC 61169-8 Annex A
Analog Video Input - Signal Level: 1V nominal
Analog Video Input - Frequency Lock Range: ±50 ppm from nominal
Analog Video Input - Input Level Control Range: > ±4dB
Analog Video Input - Black Level Control Range: > ±5IRE
Analog Video Input - Chroma Level Control Range: > ±20%
Analog Video Input - Hue Control Range: ±20° (NTSC only)
Analog Video Input - Input impedance: 75 Ohms or High impedance (jumper selectable)
Analog Video Input - Return loss: > 35dB to 5MHz
Serial Video Output - Standard: SMPTE ST 259-C - 525 or 625 line
Serial Video - Number of Outputs: 4 (2 per channel)
Serial Video Output - Connector: BNC per IEC 61169-8 Annex A
Serial Video Output - Signal Level: 800 mV nominal
Serial Video Output - DC offset: 0V ±0.5V
Serial Video Output - Rise and Fall Time: 900 ps nominal
Serial Video Output - Overshoot: < 10% of amplitude
Serial Video Output - Return Loss: > 15dB to 270MHz
Serial Video Output - Jitter: < 0.20UI (all outputs)
Serial Video Output - Embedded Audio: SMPTE ST 272-A
Decoder Performance - Frequency Response: < ±0.1dB (100kHz to 4.2MHz)
Decoder Performance - Differential Gain: < ±0.5% typical
Decoder Performance - Differential Phase: < ±0.5° typical
Decoder Performance - Noise Floor: < -60dB rms (black video VBI lines, 15kHz to 5MHz)
Decoder Performance - C/L Gain: < ±0.5%
Decoder Performance - C/L Delay: < ±9ns
Decoder Performance - Minimum Delay: 4.5 lines
Decoder Performance - Maximum Delay: 1 frame +4.5 lines
Decoder Performance - Inter-channel crosstalk: Within noise floor measurement
Number of Slots: 7700FR-C: 2; 7800FR: 1

7837CD2-A4 - Dual Composite Decoder with 4 Analog Inputs

7837CD2-A8 - Dual Composite Decoder with 8 Analog Inputs

Dual Composite Decoder 113 kb - Data Sheet

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