THVD8000 RS-485 Transceiver with OOK Modulation

Product Highlights > THVD8000 RS-485 Transceiver with OOK Modulation

            THVD8000 RS-485 Transceiver with OOK Modulation
                    Texas Instruments' transceiver features OOK modulation for power line communication
    

Image of Texas Instruments' THVD8000 RS-485 Transceiver With OOK Modulation Texas Instruments' THVD8000 is an RS-485 transceiver 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, resulting in a significant reduction of the system cost. A pin-programmable interface simplifies the system design. The carrier frequency can be adjusted by changing an external resistor on the F_SET pin. A broad range of carrier frequencies gives the system designer the flexibility to choose the external inductors and capacitors. The OOK modulation operates with immunity to data polarity for ease of system installations.

Features

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

Operational common-mode range: -7 V to 12 V
Bus I/O protection
Fault protection: ±18 V_DC
HBM ESD: ±16 kV
Contact discharge: ±8 kV IEC 61000-4-2
Air gap discharge: ±15 kV IEC 61000-4-2
Fast transient burst: ±4 kV IEC 61000-4-4
Extended temperature range: -40°C to +125°C
Package: 8-pin SOT-23 for space-constrained applications

Applications

HVAC systems
Building automation
Factory automation and controls
Appliances

Lighting
Grid infrastructure
Power delivery