TDA5051ATD-T Datasheet, PDF (10/29 Pages) NXP Semiconductors – Home automation modem

NXP Semiconductors
TDA5051A
Home automation modem
0
V_o(rms)
(dBV)
−20
132.5 kHz
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−40
−60
−80
−100
10⁵
10⁶
f (Hz)
Fig 3.
Resolution bandwidth = 9 kHz; top: 0 dBV (RMS) = 120 dBμV (RMS); marker at
−5 dBV (RMS) = 115 dBμV (RMS); the CISPR16 network provides an attenuation of 6 dB,
so the signal amplitude is 121 dBμV (RMS).
Carrier spectrum
−10
dBV
(RMS)
−20
−30
−40
−50
−60
117.5
1500 Hz
20 dB
132.5
Resolution bandwidth = 100 Hz; B_−20dB = 3000 Hz (2 × 1500 Hz).
Fig 4. Shaped signal spectrum
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147.5
f (kHz)
TDA5051A
Product data sheet
V_RXIN
V_(I)
modulated sine wave 122 dBμV amplitude
0
G_AGC
+30 dB
−6 dB
t_c(AGC)
(AGC time constant)
Fig 5. AGC time constant definition (not to scale)
t
8.68 dB
AGC range
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All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 January 2011
© NXP B.V. 2011. All rights reserved.
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