TEA6330T Philips Semiconductors (Acquired by NXP), TEA6330T Datasheet - Page 5

• Manufacturer Part Number: TEA6330T
• Description: TEA6330T; Sound Fader Control Circuit For Car Radios
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
FUNCTIONAL DESCRIPTION
This bipolar IC is an I
controller for car radios including fader function and the
possibility of an external equalizer. The sound signal
setting is performed by resistor chains in combination with
multi-input operational amplifiers. The advantages of this
principle are the combination of low noise, low distortion
and a high dynamic range. The separated volume controls
of the left and the right channel make the balance control
possible. The value and the characteristic of the balance is
controlled via the I
The contour function is performed by setting an extra bass
control and optional treble, depending on the actual
volume position. Its switching points and its range are also
controllable via the I
An interface is assigned behind the volume control to
loop-in an equalizer (Fig.2). In this case the treble control
is switched off, and the bass control can be used to set the
contour.
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134). Ground pins 3 and 10 connected together.
* Equivalent to discharging a 200 pF capacitor through a 0
** Equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor.
January 1992
V
P
T
T
V
stg
amb
P
tot
ESD
Sound fader control circuit
for car radios
SYMBOL
2
supply voltage (pin 18)
total power dissipation
storage temperature range
operating ambient temperature range
electrostatic handling* for all pins
electrostatic handling** for all pins
C-bus.
2
C-bus.
2
C-bus controlled sound/volume
PARAMETER
5
Low level control fader is included independent of the
volume controls, because the TEA6330T has four driver
outputs (for front and rear).
An extra mute position for the front, the rear or for all
channels is built in. The last function may be used for
muting during preset selection. No external interface is
required between the microcomputer and this circuit, for all
switching and controlling functions are controllable via the
two-wire I
The separate mute-pin allows to switch the fader into mute
position without using the I
The on chip power-on reset sets the TEA6330T into the
general mute mode.
series resistor.
2
C-bus.
0
0
2
55
40
C-bus.
MIN.
Preliminary specification
10
700
150
85
300
4000
MAX.
TEA6330T
V
mW
V
V
C
C
UNIT