1999 May 31 19
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.19 Gain (curve 1) and input impedance (curve 2) of the coupling network (fcr = 115.2 kHz; L = 47 µH;C = 47 nF).
Main features of the coupling network: 50Hz rejection >80 dB; anti-aliasing for the digital filter >50 dB at the
sampling frequency (12fosc). Input impedance always higher than 10 within the 95 to 148.5 kHz band.
handbook, full pagewidth
20
0
20
40
60
80
100
MBH907
10
gain
(dB)
10210
102
103
103104105f (Hz)
input
impedance
()
106107
1
2
Fig.20 Output voltage as a function of line impedance (with coupling network; L = 47 µH; C = 47 nF).
handbook, halfpage
130
120
110
100
MBH908
110
V
o
(dBµV)
Zline ()102