Ksz80 Ob S4lv02 Datasheet !free!
The industrial-grade versions operate between -40°C to +85°C 1.2.3 . 2. Technical Specifications & Operating Parameters
: Supports 10 Mbps and 100 Mbps Ethernet over CAT-5 unshielded twisted pair (UTP) cable. Power Supply
+--------------------------------------------------------+ | KSZ8081 / KSZ8041 | | | | +-----------+ +-------------------+ +------+ | | | | | Physical | | | | --> TX+/- | | RMII/MII | <-> | Coding Sublayer | <-> | PMD | | | | Interface | | (PCS) | | | | <-- RX+/- | +-----------+ +-------------------+ +------+ | | ^ | | | (Management Data) | | +-----------+ | | | SMI / MDC | | | +-----------+ | +--------------------------------------------------------+ Core Specifications and Parameters
The hardware component designation points to the Microchip (formerly Micrel) KSZ8081 family of single-supply 10Base-T/100Base-TX Ethernet physical layer (PHY) transceivers. Specifically, the "OB S4LV02" marking found on the physical chip casing maps to factory silicon revisions and packaging variants of the KSZ8081RNB or KSZ8081MNX series. ksz80 ob s4lv02 datasheet
The you measure at the VGH, VGL, or VIN test points.
Using a multimeter, technicians check for VGH (typically +20V to +30V) and VGL (typically -5V to -10V). If these are missing, the screen will likely remain blank or display a slowly fading image. Where to Source Parts
The KSZ80 series provides a physical layer interface to transmit and receive data over standard Unshielded Twisted Pair (UTP) category 5 (Cat 5) cables. It interfaces directly with Media Access Controllers (MACs) via standard digital interfaces. Core Specifications 10 Mbps and 100 Mbps auto-negotiation. Using a multimeter, technicians check for VGH (typically
: Features more dedicated pins for LED status outputs and hardware configuration strapping. Microchip Technology wiring diagram for this specific scaler board, or do you need a list of compatible TV models for replacement? KSZ8081 | Microchip Technology
What did you get on the board's fuse or primary voltage test points ( VGH , VGL , AVDD )?
+------------------+ +-------------------+ +---------------------+ | | RMII | | MDI | | | Host MAC / CPU |<------->| KSZ80 PHY |<------->| Magnetic Isolation |---> RJ45 | | (MDIO) | (Internal LDO) | (Pairs) | & Common Choke | +------------------+ +-------------------+ +---------------------+ Essential Specifications and Technical Attributes Microchip Technology Key Technical Specifications
The transceiver automatically detects and corrects crossed or straight-through Ethernet cables. This eliminates the need for crossover patch cords on the production floor. 3. Integrated LDO Regulator
At the center of the chaos sat , the lead hardware engineer. Spread across her desk were schematics, logic analyzers, and a single, coffee-stained printout that held the answer to all her problems: the KSZ80 Ethernet Physical Layer Transceiver Datasheet . 🛠️ The Ghost in the Silicon
is a top-side device marking typically found on Microchip parts, where "S4" often refers to a specific variant or date/lot code. To properly implement this chip, you should refer to the Microchip KSZ8081MNX/RNB Data Sheet KSZ8091RNA/RND Data Sheet depending on your exact package. Microchip Technology Key Technical Specifications
