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PDF TEA6330T Data sheet ( Hoja de datos )
| Número de pieza | TEA6330T | |
| Descripción | Sound fader control circuit for car radios | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TEA6330T
Sound fader control circuit
for car radios
Preliminary specification
Supersedes data of June 1991
File under Integrated Circuits, IC01
January 1992
1 page  
Philips Semiconductors
Sound fader control circuit
for car radios
Preliminary specification
TEA6330T
FUNCTIONAL DESCRIPTION
This bipolar IC is an I2C-bus controlled sound/volume
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 I2C-bus.
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 I2C-bus.
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.
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 I2C-bus.
The separate mute-pin allows to switch the fader into mute
position without using the I2C-bus.
The on chip power-on reset sets the TEA6330T into the
general mute mode.
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134). Ground pins 3 and 10 connected together.
SYMBOL
PARAMETER
MIN. MAX.
VP
Ptot
Tstg
Tamb
VESD
supply voltage (pin 18)
total power dissipation
storage temperature range
operating ambient temperature range
electrostatic handling* for all pins
electrostatic handling** for all pins
0 10
0 700
−55 150
−40 85
− ±300
− ±4000
UNIT
V
mW
°C
°C
V
V
* Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor.
** Equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor.
January 1992
5
5 Page 
Philips Semiconductors
Sound fader control circuit
for car radios
Preliminary specification
TEA6330T
Fig.9 Signal-to-noise ratio (CClR 468-2 weighted, quasi-peak) for TEA6330T with a 6 W power amplifier
(20 dB gain, Fig.10). Measurements without noise contribution of the power amplifier.
Fig.10 Signal-to-noise ratio measurement (Fig.9) with Vi = 50 mV RMS, Vo = 500 mV RMS for Pmax = 6 W.
January 1992
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet TEA6330T.PDF ] | |
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