Philips Semiconductors
Preliminary specification
Sound fader control circuit
TEA6320
If the 20 dB gain is not required for the maximum volume
position, it will be an advantage to use the maximum boost
gain and then increased attenuation in the last section,
Volume II.
Therefore the loudness will be at the correct place and a
lower noise and offset voltage will be achieved.
handbook, halfpage
TEA6320
POWER STAGE
G = 20 dB
V
= 200 mV
P
= 100 W at 4 Ω
(max)
I(min)
V
= 2 V for P
o
(max)
MBE899
a.
handbook, halfpage
POWER STAGE
TEA6320
G = 26 dB
V
= 200 mV
P
= 100 W at 4 Ω
(max)
I(min)
V
= 1 V for P
o
(max)
MED431
b.
a. Gain volume I = 20 dB (Gv(max)); gain volume II = 0 dB; fader and balance range = 55 dB.
b. Gain volume I = 20 dB (Gv(max)); gain volume II = −6 dB global setting; fader and balance range now 49 dB, previously 55 dB.
Fig.11 Level diagram.
1995 Dec 19
25
NXP [ NXP ]
