CXLE87133AE0 is an integrated circuit chip focusing on DMX512 signal decoding and forwarding. It has 128 channel data forwarding capability and supports adaptive decoding of 200Kbps to 1000Kbps transmission rate. The chip has built-in EPROM, which supports online code writing and parameter configuration, with a maximum addressing capacity of 4096 channels, and is suitable for various medium and large lighting control systems.
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[ CXLE87133AC0 ]"
CXLE87133AE0: Professional-grade DMX512 pure forwarding decoding chip, enabling intelligent lighting system expansion
With the increasing complexity of large-scale LED lighting control systems, efficient and reliable signal transmission and expansion have become the key to system design. As a professional-grade DMX512 differential parallel protocol decoding chip, CXLE87133AE0 has become an ideal signal relay and expansion solution for building complex lighting networks with its pure forwarding mode, high compatibility and flexible parameter configuration capabilities.
First, product overview
CXLE87133AE0 is an integrated circuit chip focusing on DMX512 signal decoding and forwarding. It has 128 channel data forwarding capability and supports adaptive decoding of 200Kbps to 1000Kbps transmission rate. The chip has built-in EPROM, which supports online code writing and parameter configuration, with a maximum addressing capacity of 4096 channels, and is suitable for various medium and large lighting control systems.
Its DO port can output 800Kbps return-to-zero code signal, directly drive 800Kbps rate IC such as CXLE87152, CXLE87143D, CXLE87144D, etc., realize long-distance transmission and multi-level expansion of signal, and bring great flexibility to system design.
Second, the core functional characteristics
• Forwarding-only mode of operation: The chip focuses on signal decoding and forwarding, does not directly drive the LED, and is suitable for system relay node design.
• High compatibility decodingFully compatible with DMX512(1990) protocol, supports 200Kbps ~ 1000Kbps rate adaptation without external settings.
• 128 channel data forwarding: It can intercept and forward 128 field data and support large-scale system expansion.
• Parameter configurable architecture: Support flexible setting of multiple parameters such as power-on lighting state, forwarding mode, no signal behavior, etc.
• Intelligent code writing system: Based on the automatic calculation mode of "first address self-channel number", the engineering installation process is simplified.
• High reliability design: Built-in anti-interference module, support 2.5V low voltage work, with 8000V antistatic capability.
• Compact package: Using SOP8 package, saving PCB space, suitable for compact lamp design.
Three, typical application areas
CXLE87133AE0 are widely used in the following scenarios:
• Large building facade lighting system
• Stage Performance Lighting Network Relay Node
• LED video wall signal expansion system
• city lighting engineering signal transmission network
• Various types of lighting control systems that require signal splitting and expansion
Four, the package and pin description
The chip uses SOP8 compact package, pin configuration is simple and efficient:
• AI/BI: differential signal input, built-in pull-up/pull-down resistor
• ADRI/ADRO: address write code line input/output
• DO:800Kbps Zero Code Forwarding Output
• VDD/GND: Power supply positive/negative
• TST: Test pin (built-in pull-down)
Five, detailed technical advantages
5.1. Intelligent parameter configuration system.
The CXLE87133AE0 supports flexible configuration of multiple operating parameters:
• Power-on light status: You can customize the RGBW grayscale combination forwarded after power-on to form a brand identity effect
• Forwarding Mode Selection: Support 1, 2, 3 and W3 forwarding modes to adapt to different driver requirements
• No signal behavior: Can be set to keep the last frame or restore power-on state
• From Channel Number Setting: Automatically calculate the number of channels to simplify system configuration
5.2. Efficient code writing and address management.
The innovative "first address self-channel number" code writing mode is adopted:
• The controller only needs to set the first address and does not need to manually calculate the number of channels.
• The code will take effect immediately after successful code writing, and there is no need to power on again.
• Through the yellow light, white light, green light and other colors visual display code writing status and breakpoint position
• Support quick code writing mode, greatly improving engineering efficiency
5.3. Powerful signal expansion capability
The 800Kbps return-to-zero code signal output from the DO port can directly drive a variety of 800Kbps rate ICs:
• Support 128 channel data full forwarding
• Stable signal quality and long transmission distance
• Perfect compatibility with JTM-IC 18 and 19 series ICs
5.4. Excellent anti-interference performance
• Built-in special anti-interference module to filter out differential mode interference
• AI/BI port built-in pull-up/pull-down resistor to enhance signal stability
• Support 2.5V low voltage operation, improve the stability of 5V system power supply
• Industrial grade design, adapt to harsh working environment
Six, the application of design recommendations
In the actual system design, it is recommended to pay attention to the following points:
6.1. Power supply design
Select the appropriate voltage dividing resistor Rz according to the supply voltage:
• 24V system: Rz = 2K ~ 2.4KΩ
• 12V system: Rz = 750 ~ 820Ω
• 5V system: Rz = 82Ω
6.2. Signal wiring specification
• Twisted pair or shielded twisted pair is recommended for AI/BI signal line
• Adopt "hand-in-hand" bus topology to avoid star connections
• When long-distance transmission, 120Ω matching resistor is installed at the end.
• The controller and each node must be reliably co-ground.
6.3. Production test process
6.3.1. Connect A/B/GND line and check contact reliability
6.3.2. Perform RGB white-black jump test to verify that the circuit is normal
6.3.3. Write parameters such as forwarding mode, power-on and light-on as required
6.3.4. Write self-channel number parameter (set according to lamp length in production)
6.3.5. Execute quick code writing and verify the correctness of the address
6.3.6. Verification of system functionality using dedicated test procedures
Seven, with the same series of product positioning differences
Compared to CXLE87133BC (quad constant current output) and CXLE87133AL1 (decode-and-forward configurable output),CXLE87133AE0 focuses on pure forwarding and has unique advantages in the following areas:
• More compact SOP8 package
• The pure forwarding mode is suitable for the system relay node.
• Parameter configuration is more flexible and rich
• The code writing system is more intelligent
• Anti-interference ability further enhanced
Eight, the conclusion
With its professional pure forwarding function, flexible parameter configuration, intelligent code writing system and excellent anti-interference performance, the CXLE87133AE0 has become an indispensable signal processing core in large DMX512 lighting system. Whether it is used for building linkage lighting, stage lighting network expansion, or complex video wall system construction, it can provide stable, reliable and efficient signal relay and expansion solutions.
For more information on CXLE87133AE0 technical materials, applications or procurement information, please visitJTM-IC official website. We are committed to providing global customers with professional LED drive and control solutions, and provide comprehensive technical support services.
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