Philips Semiconductors
Sound fader control circuit
SYMBOL
Control part
Zi
Zo
RL
CL
Vi(rms)
Vno
Vno
Vno
Vno
Volume control
Gc
∆Ga
∆Ga
∆Gt
αm
DC step offset
PARAMETER
Source selector disconnected,
source resistance 600 Ω
Input impedance
Output impedance
Output load resistance
Output load capacity
Maximum input voltage
THD < 0,5%; Gv = −10 dB;
bass and treble linear
Noise output voltage
weighted acc CCIR 468-2, quasi-peak,
bass and treble linear, fader off
Gv = 20 dB
Gv = 0 dB
Gv = −66 dB
mute position
Continuous control range
Step resolution
Attenuator set error
(Gv = + 20 to −50 dB)
Attenuator set error
(Gv = + 20 to −66 dB)
Gain tracking error
balance in mid position,
bass and treble linear
Mute attenuation
Between any adjoining step
and any step to mute
Gv = 0 to −66 dB
Gv = 20 to 0 dB
In any treble and fader position
Gv = 0 to −66 dB
In any bass position
Gv = 0 to −66 dB
Product specification
TEA6300
TEA6300T
MIN.
TYP. MAX. UNIT
35
50
65
kΩ
−
100
150
Ω
5
−
−
kΩ
0
−
2500 pF
−
2,0
−
V
−
110
220
µV
−
25
50
µV
−
19
38
µV
−
11
22
µV
−
86
−
dB
−
2
−
dB
−
−
2
dB
−
−
3
dB
−
−
2
dB
72
90
−
dB
−
0,2
10
mV
−
2
15
mV
−
−
10
mV
−
−
20
mV
May 1990
8