LM2893

Features: · Noise resistant FSK modulation· User-selected impulse noise filtering· Up to 4.8 kBaud data transmission rate· Strings of 0's or 1's in data allowed· Sinusoidal line drive for low RFIApplication· Energy management systems· Home convenience control· Inter-office communication· Appliance...

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LM2893 Picture
SeekIC No. : 004395094 Detail

LM2893: Features: · Noise resistant FSK modulation· User-selected impulse noise filtering· Up to 4.8 kBaud data transmission rate· Strings of 0's or 1's in data allowed· Sinusoidal line drive for low RFIApp...

floor Price/Ceiling Price

Part Number:
LM2893
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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268 Transactions

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Upload time: 2024/3/28

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Product Details

Description



Features:

· Noise resistant FSK modulation
· User-selected impulse noise filtering
· Up to 4.8 kBaud data transmission rate
· Strings of 0's or 1's in data allowed
· Sinusoidal line drive for low RFI



Application

· Energy management systems
· Home convenience control
· Inter-office communication
· Appliance control
· Fire alarm systems
· Security systems
· Telemetry
· Computer terminal interface



Specifications

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply voltage                                                           30 V
Voltage on pin 12                                                      55 V
Voltage on pin 10 (Note 1)                                        41 V
Voltage on pins 5 and 17                                          40 V
5.6 V DC zener current                                         100 mA
Junction temperature: transmit mode                     150
receive mode                                                           125
Electro-Static Discharge (120 pF, 1500)                  1KV
Maximum continuous dissipation, TA=25,
plastic DIP N (Note 2): transmit mode                  1.66 W
receive mode                                                        1.33 W
Operating ambient temp. range                     -40 to 85
Storage temperature range                         -65 to 150
Lead temp., soldering, 7 seconds                           260

Note: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications are not ensured when operating the device above guaranteed limits but below absolute maximum limits, but there will be no device degradation.




Description

Carrier-current systems LM2893 use the power mains to transfer information between remote locations. This bipolar carriercurrent chip performs as a power line interface for half-duplex (bi-directional) communication of serial bit streams of virtually any coding. In transmission, a sinusoidal carrier is FSK modulated and impressed on most any power line via a rugged on-chip driver. In reception, a PLL-based demodulator and impulse noise filter combine to give maximum range.

A complete system may consist of the LM2893, a COPSTM controller, and discrete components.




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