NS视频交换器解决方案
Production switchers offer multi-format signal handling and simultaneous parallel processing of SD and HD signals. With the move to DTV, the production switcher is a central element within a modern TV production chain, and must be capable of handling and optimizing new types of input signal formats. This shows a typical architecture for a production switcher supporting both SD and HD I/O cards. The input to the signal chain is an adaptive cable equalizer, which automatically compensates for signal distortion caused by the coaxial cable. A crosspoint switch allows physical interconnection between an input source and an output destination. The blocks following the crosspoint switch support processing the video data. The deserializer / descrambler block converts the serial input to parallel format, either 10-bits for SD or 20-bits for HD. Processing of the data is typically a function of Digital Signal Processing (DSP), and this may be implemented using dedicated DSP chips or as logic with a Field Programmable Gate Array (FPGA). Finally the parallel data is fed into the serializer that includes an integrated cable driver to transmit the serial data to another location. The control and power systems within a production switcher include many other products that National can supply including voltage regulators, amplifiers, and interface products such as RS-232 or RS-422 for linking to control systems. Modern systems also include a LAN (Ethernet), which allows communication between control panels, and peripherals to support file transfers, setup, as well as remote monitoring and system management.
Component Highlights
* Adaptive Cable Equalizer - Automatic cable equalization of coaxial cables. Superior jitter performance.
* Crosspoint Switch - These crosspoint switches utilizing LVDS (Low Voltage Differential Signaling) technology for low power, high-speed operation. Data paths are fully differential from input to output for low noise generation and low pulse width distortion.
* Deserializer - Automatic rate selection to recognize and automatically adjust to data rates and provides parallel output.
* Serializer - Serializes the parallel data and uses integrated cable driver to transmit data over coaxial cables.
* Control Interface - Easy to use, low cost interface to control system.
* Network Interface - National offers a high-performance Gigabit Physical Layer device.
1 Digital Crosspoint Switch
CLC018AJVJQ
DS90CP04TLQX
DS90CP04TLQ
2 HD Deserializer
LMH0031VS
3 HD Serializer
LMH0030VS
4 SD Equalizer
CLC014AJE-TR13
CLC014AJE
LMH0034MAX
5 SD Deserializer
CLC011BCQ
CLC016AJQ-TR13
CLC016AJQ
6 SD Serializer
CLC021AVGZ-5.0
CLC021AVGZ-3.3
CLC020BCQ
7 Voltage Regulator
LM2585
LM2586
LM2587
8 CP3000 Processor
USB 1.1 Interface:
•CP3UB17 - Reprogrammable Connectivity Processor with USB Interface
•CP3UB26 - Reprogrammable Connectivity Processor with USB and CAN Interfaces
CAN 2.0B Active Interface:
•CP3CN17 - Reprogrammable Connectivity Processor with CAN Interface
•CP3CN23 - Reprogrammable Connectivity Processor with Dual CAN Interfaces
Bluetooth Baseband Processor:
•NEW! CP3SP33 - Connectivity Processor with Cache, DSP, and Bluetooth, USB, and Dual CAN Interfaces
•CP3BT10 - Reprogrammable Connectivity Processor with Bluetooth and USB Interfaces
•CP3BT13 - Reprogrammable Connectivity Processor with Bluetooth and CAN Interfaces
•CP3BT23 - Reprogrammable Connectivity Processor with Bluetooth and Dual CAN Interfaces
•CP3BT26 - Reprogrammable Connectivity Processor with Bluetooth, USB, and CAN Interfaces
9 Network Interface
DP83848TSQ
DP83848MSQ
DP83848HSQ