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7837CDM, 7837CDM-A4

Composite Analog Video A to D Converter with Frame Synchronizer

VistaLINK® 兼容

The 7837CDM line of composite analog to serial digital converters are broadcast quality decoders with an extensive list of features. High quality analog audio A/D converters can be packaged with the decoder to create a video/audio frame synchronizer with audio embedding.

Within the 7837CDM series, adaptive 3D comb filtering technology is utilized to eliminate moving artifacts typically introduced during the decoding process. This makes the 7837CDM series ideal for use in applications where the signal is destined to enter compression systems. The 7837CDM series utilizes 12 bit video ADCs for superior precision and image quality.

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

特点

  • One input analog video input
  • One SMPTE ST 259-C video input
  • 75Ω or Hi-Z input impedance (jumper configurable)
  • Four SD-SDI outputs 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
  • 75Ω or Hi-Z input impedance (jumper configurable) for REF IN
  • 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" Option
    • 4 balanced analog audio inputs (two stereo pair) on 7837CDM-A4
    • 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 2.5s
    • Audio advance of up to 1 frame
    • 4 channels (one full group) of audio is multiplexed onto outgoing video
    • 2 unbalanced AES audio outputs using BNC connectors
产品结构图 产品结构图

指标

Analog Video Input
标准NTSC, SMPTE ST 170 PAL, ITU624-4
输入数量1
端口数目BNC per IEC 61169-8 Annex A
信号电平1V nominal
Frequency Lock Range±50 ppm from nominal
Input Level Control Range> ±4dB
Black Level Control Range> ±5 IRE
Chroma Level Control Range> ±20%
Hue Control Range> ±20° (NTSC only)
Input Impedance75Ω or High impedance (jumper selectable)
反射损失> 35dB to 5MHz
串行视频输入
标准SMPTE ST 259-C- 525 or 625 line
输入数量1 (non-reclocked)
端口数目BNC per IEC 61169-8 Annex A
反射损失> 15dB to 300MHz
Embedded AudioSMPTE ST 272-A
Frequency Lock Range±50ppm from nominal
Reference Video Input
标准NTSC, SMPTE ST 170 PAL, ITU624-4
输入数量1
端口数目BNC per IEC 61169-8 Annex A
信号电平1V nominal
Frequency Lock Range±50ppm from nominal
Input Impedance75Ω or High impedance (jumper selectable)
反射损失> 35dB to 5MHz
Analog Monitoring Video Output
标准NTSC, SMPTE ST 170 PAL, ITU624-4
输出数量1
端口数目BNC per IEC 61169-8 Annex A
信号电平1V nominal
Output Impedance75Ω
反射损失> 35dB to 5MHz
串行视频输出
标准SMPTE ST 259-C - 525 or 625 line
输出数量4
端口数目BNC per IEC 61169-8 Annex A
信号电平800mV nominal
直流偏置0V ±0.5V
上升/下降时间900ps nominal
过冲< 10% of amplitude
反射损失> 15dB to 270MHz
抖动< 0.20UI (all outputs)
Embedded AudioSMPTE ST 272-A
Decoder PerformanceSDI outputs only
频率响应< ±0.1dB (100kHz to 4.2MHz)
微分增益< ±0.5% typical
微分相位< ±0.5° typical
Noise Floor< -60dB rms (black video VBI lines, 15kHz to 5MHz)
C/L Gain< ±0.5%
C/L Delay±9ns
Minimum Delay4.5 lines
Maximum Delay1 frame + 4.5 lines
Analog Audio Input-A4 only
输入数量4
Type平衡 analog audio
Input Impedance20kΩ minimum (differential)
Sampling Frequency48kHz
信号电平0dB FS => 18 or 24dBu (Software selectable)
Level Control Range±10dB
频率响应±0.1dB (20Hz to 20kHz) (broadcast quality)
信噪比100dB
THD+N< 0.001% (> 100dB) @ 1kHz, -0.5dB FS
< 0.001% (> 100dB) @ 20Hz to 20kHz, -0.5 dB FS (input video locked to genlock video)
共模抑制比> 90dB @ 1kHz
AES Audio Outputs-A4 only
输出数量2
Output StandardSMPTE ST 276, single ended synchronous AES
ConnectorsBNC per IEC 61169-8 Annex A
Resolution24 bits
Sampling RateSynchronous 48kHz
Minimum I/O Delay4.5 lines
Maximum I/O Delay2.5s
电气
电压+12V DC
功率
7837CDM17 瓦
7837CDM-A421 瓦
EMI/RFIComplies with FCC Part 15, Class A, EU EMC directive
物理参数
插槽数
7700FR-C2
7800FR1 (7837CDM) or 2 (7837CDM-A4)

订购信息

7837CDMComposite Analog Video A to D Converter with Frame Synchronizer
7837CDM-A4Composite Analog Video A to D Converter with Frame Synchronizer with 4 analog inputs
订购可选项
注意• 后面板必须在下订单是指明 - eg: [model]+3RU
后面板后缀
+3RU3RU 后面板用于7800FR, 7801FR, 7700FR-C 或 350FR 多用途主机
机箱
350FRPortable Multiframe which holds 7 modules
7700FR-C3RU 多用途主机，可装15 个模块
7800FR3RU 多用途主机，可装15 个模块
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