DATASHEET
TW3811 FN8284
Rev.1.00
Nov 29, 2012 Security Link Over Coax (SLOC) Receiver Features SLOCв„ў (Security Link Over Coax) is a transmission protocol for
simultaneously transmitting analog CVBS video and digital IP
video over a single coaxial cable. Simultaneous transmission of IP video data and analog
CVBS video over up to 500m of RG59 coaxial cable The TW3811 is the receiving end of a SLOC link, converting the
single SLOC signal on the coaxial cable back to separate
Ethernet digital video data and analog CVBS video. It can be
embedded into a DVR to enable one or more SLOC inputs or
configured as a stand-alone SLOC-to-IP+CVBS converter. Analog CVBS video preview support Proprietary adaptive analog equalizer for extending the
reach of CVBS video Proprietary SLOC-based IP camera detection Creates a full-duplex 100BASE-T digital link The TW3811 includes an AFE, digital modem, and two
Ethernet MII/RMII interfaces. The device accepts a SLOC
output signal from a SLOC transmitter and decodes it into an
analog CVBS signal and an Ethernet MII signal. 36Mbps downlink speed from TW3801 to TW3811 4Mbps uplink for SLOC compliance Ethernet MAC MII/RMII interface for interfacing to DVR/NVR
network processor SoC Applications Optional Ethernet PHY MII/RMII interface for interfacing to
external Ethernet PHY chip Single-Channel SLOC receiver modem Multi-Channel SLOC receiver modem I2C 2-wire control interface Embedded DVR Integrated PLL with 25MHz crystal interface 1.8V, 3.3V supplies 100-TQFP (12x12mm) Package Application Block Diagram
IP Camera SLOC Adapter Module One-Channel SLOC Receiver MCU MCU (optional) (optional) Analog
CVBS Ethernet Up to 500m of
RG59 cable EL8101 TW3801 SPOT
Monitor Analog
CVBS DVR TW3811 100BASE-T 100BASE-T PHY PHY Ethernet В Network
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