Texas Instruments THVD8000 RS-485 Transceiver

Texas Instruments THVD8000 RS-485 Transceiver comes with on-off keying (OOK) modulation and demodulation built-in for power line communication. Modulating data onto existing power lines allows power delivery and data communication to share a common pair of wires, significantly reducing the system's cost. A pin-programmable interface simplifies the system design. The carrier frequency of the Texas Instruments THVD8000 can be adjusted by changing an external resistor on the F_SET pin. A broad range of carrier frequencies allows the system designer to choose the external inductors and capacitors. Also, OOK modulation operates with immunity to data polarity to ease system installations.

Features

3V to 5.5V supply voltage
Half-duplex communication
- Up to 500kbps data rate with f0/bps = 10
- Higher data rates are possible with f0/bps < 10
RS-485 electrical signaling with on-off keying (OOK) modulation
125kHz to 5MHz pin selectable carrier frequency
Spread-spectrum clocking for excellent EMI performance
Polarity free
TX timeout to avoid stuck bus conditions

–7V to 12V operational common-mode range
Bus I/O protection
- ±18V DC fault protection
- ±16kV HBM ESD
- ±8kV IEC 61000-4-2 contact discharge
- ±15kV IEC 61000-4-2 air gap discharge
- ±4kV IEC 61000-4-4 fast transient burst
-40°C to 125°C extended temperature range
8-Pin SOT-23 package for space-constrained applications