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Overview
| Topology | Other Topology |
| IC revision | 1 |
Description
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 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.
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.
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 camera 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 DVR/NVR
- network processor SoC
- Optional Ethernet PHY MII/RMII interface for interfacing to external Ethernet PHY chip
- I2C 2-wire control interface
- Integrated PLL with 25MHz crystal interface
- 1.8V, 3.3V supplies
- 100-TQFP (12x12mm) Package
Typical applications
- Single-Channel SLOC receiver modem
- Multi-Channel SLOC receiver modem
- Embedded DVR
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | VDC (V) | ILeak (µA) | VClamp typ. (V) | VESD Air (kV) | CCh min. (pF) | Size | Application | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744314101 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | 10 | 5.3 | 1.8 | 4 | 33 | 40 | Superflux | – | – | – | – | – | 7050 | – | ||
 | 82357240030 | SPEC | 6 files | WE-VE ESD Suppressor | – | – | – | – | – | – | – | 24 | 1 | 180 | 15 | 3 | 0402 | USB 2.0 LAN 100 Mbit |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744314101 | SPEC | |
| 82357240030 | SPEC |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | VDC (V) | ILeak (µA) | VClamp typ. (V) | VESD Air (kV) | CCh min. (pF) | Size | Application | Samples |
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