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TW3801

Renesas
Part Number TW3801
Manufacturer Renesas
Description SLOC Transmitter
Published Aug 13, 2020
Detailed Description TW3801 Security Link Over Coax (SLOC) Transmitter SLOC™ (Security Link Over Coax) is a transmission protocol for simulta...
Datasheet PDF File TW3801 PDF File

TW3801
TW3801

Overview
TW3801 Security Link Over Coax (SLOC) Transmitter SLOC™ (Security Link Over Coax) is a transmission protocol for simultaneously transmitting analog CVBS video and digital IP video over a single coaxial cable.
The TW3801 is the transmitting (“camera”) end of a SLOC link, combining Ethernet digital video data and analog CVBS video into a single SLOC signal that can be transmitted over 500m of coaxial cable.
It can be embedded into a camera or configured as a stand-alone IP+CVBS-to-SLOC converter.
The TW3801 includes an AFE, digital modem, and two Ethernet MII/RMII interfaces.
The device accepts an analog CVBS signal and an Ethernet (R)MII signal and encodes it into a SLOC signal.
Applications • Single-channel SLOC transmitter modem • Embedded SLOC camera modem DATASHEET FN8283 Rev.
1.
00 November 29, 2012 Features • Simultaneous transmission of IP video data and analog CVBS video over up to 500m of RG59 coaxial cable • Analog CVBS video preview support • Proprietary adaptive analog equalizer for extending the reach of CVBS video • Proprietary SLOC-based IP DVR detection • Creates a full-duplex 100BASE-T digital link • 36Mbps downlink speed from TW3801 to TW3811 • 4Mbps uplink for SLOC compliance • Ethernet MAC MII/RMII interface for interfacing to Camera ISPs • Ethernet PHY MII/RMII interface for interfacing to Ethernet PHY chip • I2C 2-wire control interface • Integrated PLL with 25MHz crystal interface • 1.
8V, 3.
3V supplies • 100-TQFP (12mmx12mm) Package Application Block Diagram IP Camera Analog CVBS Ethernet SLOC Adapter Module MCU (optional) 100BASE-T PHY TW3801 Up to 500m of RG59 cable One-Channel SLOC Receiver MCU (optional) TW3811 EL8101 100BASE-T PHY Analog CVBS Ethernet SPOT Monitor DVR Network Switch NVR Simplified Application Schematic Ethernet I/O RJ45 IP Camera CVBS Input 1.
8V 3.
3V 3.
3V MII or RMII PHY MII / RMII Interface VDD_D VDD_IO VDD_A COAX_IN + 10µF CVBS_IN COAX_OUT TW3801 LOAD_DRV 75 SCL SDA XTAL_IN XTAL_OUT I2C Microcontr...


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