Philips Semiconductors
Preliminary specification
Sound fader control circuit
TEA6320
MED425
20
handbook, full pagewidth
G
v
(dB)
10
0
−10
−20
−30
−40
2
3
4
5
10
10
10
10
10
f (Hz)
Fig.5 Volume control with loudness (including low roll-off frequency).
MED426
100
handbook, full pagewidth
S/N
(dB)
(1)
90
80
70
60
50
(2)
(3)
−4
−3
−2
−1
10
10
10
10
1
P (W)
o
10
(1) Vi = 2.0 V.
(2) Vi = 0.5 V.
(3) Vi = 0.2 V.
Fig.6 Signal-to-noise ratio; noise weighted: CCIR468-2, quasi peak.
21
1995 Dec 19