Multimode Powerline-Modem

AS5501 / AS 5502

Key Features:

AS5501/02 is an FSK-modem device for narrow-band FSK communication via a

Power-Line. The device is operated with a single supply voltage of 5V while the attached

TX-driver stage is generating a 7Vpp (AS5501) or a 14Vpp (AS5502) FSK-signal with very

low distortion which needs a supply of the external driver stage of 12V (AS5501) and 24V

(AS5502) respectively. The high output-voltages which gets coupled to the power-line by

using a transformer with proper ratios gives the advantage to lower the output impedance of

the buffer while the buffer supply-current gets kept small.

Precise filtering gives an receiver performance with low BER-figures at <13dB of S/N white

inband-noise and <-40dB S/N with monochromatic outband-noise and a sensitivity of

1.5mV

The carrier frequency is programmable in a range from 64kHz to 140kHz to support a big

variety of communication-bands including home-automation applications.

Modulation depth and Baud-Rate are programmable to 600Hz/1200Hz and 600, 1200,

2400B/s.

There is a carrier-detect function included to support channels with protocoll.

In addition to the modem-function a reference voltage output is available as well as a

supply-supervision.

AS5501 / AS5502 Multimode Powerline Modem

Data Sheet

Rev A, May 2000

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