Philips Semiconductors
Preliminary specification
Sound fader control circuit
for car radios
TEA6330T
Table 5(a) Fader function front
Table 5(b) Fader function rear
SETTING
SETTING
DATA
DATA
FRONT REAR
FRONT REAR
DB
DB
MFN FCH FA3 FA2 FA1 FA0
fader-off
DB
DB
MFN FCH FA3 FA2 FA1 FA0
fader-off
0
0
0
0
1
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
0
0
0
1
1
1
1
1
1
1
1
fader-front
fader rear
−2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
−2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
−4
−4
−6
−6
−8
−8
−10
−12
−14
−16
−18
−20
−22
−24
−26
−28
−30
−10
−12
−14
−16
−18
−20
−22
−24
−26
−28
−30
mute front
mute rear
−84
---
0
0
1
1
1
1
0
0
−84
---
0
0
1
1
1
0
---
---
---
0
---
---
---
0
---
---
---
0
---
---
---
0
---
---
---
---
−84
0
0
1
0
0
0
−84
0
0
0
0
Table 6 Mute control
Table 7 Equalizer
EQUALIZER
MUTE
DATA
DATA
REMARKS
REMARKS
signal outputs for
equalizer are pins 4 and
17, inputs are pins 6 and
15; Tables 3(b) and 4(b)
CONTROL
GMU-BIT
CONTROL
EQN-BIT
active
1
outputs QLF, QLR, QRF
and QRR are muted
active
0
passive
0
no general mute
passive
1
no general mute;
Tables 3(a) and 4(a)
January 1992
16
NXP [ NXP ]
