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TDA5051AT Datasheet(PDF) 10 Page - NXP Semiconductors

Part No. TDA5051AT
Description  Home automation modem
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA5051A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 13 January 2011
10 of 29
NXP Semiconductors
TDA5051A
Home automation modem
Resolution bandwidth = 9 kHz; top: 0 dBV (RMS) = 120 dB
μV (RMS); marker at
−5dBV (RMS)=115dBμV (RMS); the CISPR16 network provides an attenuation of 6 dB,
so the signal amplitude is 121 dB
μV (RMS).
Fig 3.
Carrier spectrum
Resolution bandwidth = 100 Hz; B−20dB = 3000 Hz (2 × 1500 Hz).
Fig 4.
Shaped signal spectrum
Fig 5.
AGC time constant definition (not to scale)
002aaf054
f (Hz)
105
106
−60
−40
−80
−20
0
Vo(rms)
(dBV)
−100
132.5 kHz
f (kHz)
117.5
147.5
002aaf057
−40
−30
−50
−20
−10
dBV
(RMS)
−60
132.5
20 dB
1500 Hz
002aaf058
VRXIN
V(I)
0
8.68 dB
AGC range
tc(AGC)
(AGC time constant)
+30 dB
−6 dB
GAGC
modulated sine wave 122 dB
μV amplitude
t




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