DATASHEET
TW3801 FN8283
Rev.1.00
November 29, 2012 Security Link Over Coax (SLOC) Transmitter 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 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. Analog CVBS video preview support Proprietary adaptive analog equalizer for extending the
reach of CVBS video Proprietary SLOC-based IP DVR detection 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. Creates a full-duplex 100BASE-T digital link Applications Ethernet MAC MII/RMII interface for interfacing to Camera
ISPs Single-channel SLOC transmitter modem Ethernet PHY MII/RMII interface for interfacing to Ethernet
PHY chip 36Mbps downlink speed from TW3801 to TW3811 4Mbps uplink for SLOC compliance Embedded SLOC camera modem 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 SLOC Adapter Module One-Channel SLOC Receiver MCU MCU (optional) (optional) Analog
CVBS Up to 500m of
RG59 cable EL8101 TW3801 Ethernet SPOT
Monitor Analog
CVBS DVR TW3811 100BASE-T 100BASE-T PHY PHY Ethernet В Network
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