AS3901 データシートの表示（PDF） - austriamicrosystems AG
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AS3901 Datasheet PDF : 18 Pages
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ISM 433/315 MHz FSK/ASK Transmitter – Data Sheet
AS3901
5 Typical Measurements
Figure 6:
Narrow band output spectrum of the AS3901 FSK modulated with pseudo
random data at 32 kbit/s.
Figure 7:
Modulation bandwidth of the AS3901 in FSK operation at 32.6 kbit/s, measured
close to the EN 300-220-1 recommendation for wide-band equipment, clause 8.6.
Instead of 5 kHz video bandwidth (VBW) 10 kHz was used. The markers were set
up to the band edges. (433.050 MHz, 434.790 MHz) The recommendation says
that the spectrum should be observed at least 1MHz form the ISM band edges, but
it was measured with larger frequency span.
Rev. 6, August 2000
Page 15 of 18
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