Philips TEA6330T-V1 Datasheet
DATA SH EET
Preliminary specification
Supersedes data of June 1991
File under Integrated Circuits, IC01
January 1992
INTEGRATED CIRCUITS
TEA6330T
Sound fader control circuit
for car radios
January 1992 2
Philips Semiconductors Preliminary specification
Sound fader control circuit
for car radios
TEA6330T
FEATURES
• Stereo/hi-fi processor for car radios performed with
volume, balance, bass and treble controls
• Sound fader control (front/rear) down to −30 dB in steps
of 2 dB
• Fast muting via bus or via setting the muting pin
• Suitable for external audio equalizers, can be looped-in
controlled by the I2C-bus
• Power-on reset on chip sets the device into general
mute position
• AC and DC short-circuit protected concerning
neighbouring pins
• I2C-bus control for all functions.
GENERAL DESCRIPTION
This bipolar IC is an I2C-bus controlled sound/volume
controller for car radios, in addition with fader function and
the possibility of an external equalizer.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. Plastic small outline package; 20 leads; body width 7.5 mm; (SOT163A); SOT163-1; 1996 August 02.
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
P
supply voltage 7 8.5 10 V
I
P
supply current − 26 − mA
V
i
maximum AF input signal
(RMS value) 2 −− V
V
o
maximum AF output signal
(RMS value) 1.1 −− V
∆G
v
volume control range, separated −66 −+20 dB
fader control range, separated 0 −−30 dB
bass control range −12 −+15 dB
treble control range −12 −+12 dB
THD total harmonic distortion −− 0.2 %
S/N(W) weighted signal-to-noise ratio − 67 − dB
α
CR
crosstalk attenuation − 90 − dB
B frequency response (−1 dB) 35 to
− 20000 − Hz
EXTENDED
TYPE NUMBER
PACKAGE
PINS PIN POSITION MATERIAL CODE
TEA6330T
(1)
20 SO plastic SOT163A
January 1992 3
Philips Semiconductors Preliminary specification
Sound fader control circuit
for car radios
TEA6330T
Fig.1 Block and test circuit.
Fig.2 Connection of equalizer (Table 7).
In application with equalizer circuit
TEA6360 coupling capacitors are not
necessary. Connectors for RIGHT in
brackets.
Fig.3 T-filter for enhanced bass control (Fig.5).
Connectors for LEFT in brackets.
January 1992 4
Philips Semiconductors Preliminary specification
Sound fader control circuit
for car radios
TEA6330T
PINNING
SYMBOL PIN DESCRIPTION
C
PS
1 filtering capacitor for power supply
IN-R 2 audio input signal RIGHT
GND1 3 analog ground (0 V)
C
BR1
4 capacitor for bass control RIGHT
and signal to equalizer
C
BR2
5 capacitor for bass control RIGHT
C
TR
6 capacitor for treble control RIGHT,
input signal for equalizer RIGHT
QRR 7 right audio output signal of rear
channel
QRF 8 right audio output signal of front
channel
MUTE 9 input to set mute externally
GND2 10 digital ground (0 V) for bus control
SCL 11 clock signal of I
2
C-bus
SDA 12 data signal of I
2
C-bus
QLF 13 left audio output signal of front
channel
QLR 14 left audio output signal of rear
channel
C
TL
15 capacitor for treble control LEFT,
input signal for equalizer LEFT
C
BL2
16 capacitor for bass control LEFT
C
BL1
17 capacitor for bass control LEFT
and signal to equalizer
V
P
18 +8.5 V supply voltage
IN-L 19 audio input signal LEFT
V
ref
20 reference voltage output (VP/2)
Fig.4 Pin configuration.
January 1992 5
Philips Semiconductors Preliminary specification
Sound fader control circuit
for car radios
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 I
2
C-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.
* 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.
SYMBOL PARAMETER MIN. MAX. UNIT
V
P
supply voltage (pin 18) 0 10 V
P
tot
total power dissipation 0 700 mW
T
stg
storage temperature range −55 150 °C
T
amb
operating ambient temperature range −40 85 °C
V
ESD
electrostatic handling* for all pins −±300 V
electrostatic handling** for all pins −±4000 V
January 1992 6
Philips Semiconductors Preliminary specification
Sound fader control circuit
for car radios
TEA6330T
CHARACTERISTICS
V
P
= 8.5 V; load resistors at audio outputs 10 kΩ, fi = 1 kHz (RS = 600 Ω), bass and treble in linear position, fader in off
position and T
amb
= 25 °C; measurements taken in Fig.1 unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
supply voltage range (pin 18) 7 8.5 10 V
I
P
supply current − 26 − mA
V
ref
reference voltage (pin 20) 0.45 VP0.5 V
P
0.55 VPV
V
O
DC voltage at output (pins 7, 8, 13, 14) − 0.5 V
P
− V
Measurements over all
V
i
maximum AF input level for THD = 2 % Gv= −66 to −6 dB
at pins 2 and 19 (RMS value) and V
P
= 8.1 V 2 −−V
V
o
maximum AF output level for THD = 2% Gv= −4 to +20 dB
at pins 7, 8, 13, 14 (RMS value) and V
P
= 8.1 V 1.1 −−V
G
v
maximum gain by volume setting 19 20 21 dB
B frequency response −1 dB roll-off frequency 35 to
− 20000 − Hz
α
CR
crosstalk attenuation f = 250 to 10000 Hz
G
v
= 0 dB 70 90 − dB
THD total harmonic distortion f = 20 to 12500 Hz
V
i (RMS)
= 50 mV Gv = +20 dB − 0.1 0.3 %
V
i (RMS)
= 500 mV Gv = 0 dB − 0.05 0.2 %
V
i (RMS)
= 1.6 V Gv = −10 dB − 0.2 0.5 %
RR ripple rejection for V
R
< 200 mV RMS Gv = 0 dB
f = 100 Hz − 70 − dB
f = 40 Hz to 3 kHz − 60 − dB
f = 3 to 12.5 kHz − 50 − dB
P
N
noise power at output of a 25 W
powerstage with 26 dB gain
(only contribution of TEA6330T)
mute position
(V9 = 0)
−−10 nW
α
BUS
crosstalk attenuation between SDA, SCL
and signal output Gv = 0 dB − 110 − dB
(20 log V
BUS
(p-p)/Vo RMS)
S/N(W) weighted signal-to-noise ratio for CCIR 468-2 quasi
peak for 6 W power
amplifier
Vi = 50 mV RMS Po = 50 mW − 65 − dB
V
i
= 500 mV RMS Po = 50 mW − 67 − dB
V
i
= 50 mV RMS Po = 1 W 65 72 − dB
V
i
= 500 mV RMS Po = 1 W 71 78 − dB
V
i
= 50 mV RMS Po = 6 W; Fig.9 − 72 − dB
V
i
= 500 mV RMS Po = 6 W; Fig.9 − 86 − dB
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