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- LM1893
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- Last added
- 2012-05-04
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National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Handbook
The handbook describes the LM1893 and LM2893 carrier‑current transceiver chips, which use the power mains to transfer data between remote locations. It explains the bi‑directional operation, FSK modulation, and the on‑chip driver that can handle 50 to 300 kHz carrier frequencies.
The document includes absolute maximum ratings, electrical characteristics for both transmitter and receiver modes, typical performance curves, and application guidance for integrating the chip into power‑line communication systems.
National Semiconductor LM1893 specifications
| Supply voltage (maximum) | 30 V |
|---|---|
| Operating ambient temperature range | -40 °C to 85 °C |
| Maximum continuous dissipation (transmit mode) | 1.66 W |
| Maximum continuous dissipation (receive mode) | 1.33 W |
| Data transmission rate | up to 4.8 kBaud |
| Carrier frequency range | 50 kHz to 300 kHz |
Source: National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Handbook
All National Semiconductor LM1893 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum supply voltage for the LM1893/LM2893?
The maximum supply voltage is 30 V.
From: National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Handbook
What is the ambient temperature range for operation?
The device operates from –40 °C to 85 °C.
From: National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Handbook
What is the maximum supply voltage for the LM1893/LM2893?
The device can be operated with a supply voltage up to 30 V.
From: National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Datasheet
What ambient temperature range can the transceiver operate in?
It operates from –40 °C to 85 °C ambient temperature.
From: National Semiconductor LM1893/LM2893 Carrier-Current Transceiver Datasheet