tda1524a.pdf

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INTEGRATED CIRCUITS
DATA SHEET
TDA1524A
Stereo-tone/volume control circuit
Product specification
File under Integrated Circuits, IC01
September 1987
199643253.003.png
Philips Semiconductors
Product specification
Stereo-tone/volume control circuit
TDA1524A
GENERAL DESCRIPTION
The device is designed as an active stereo-tone/volume control for car radios, TV receivers and mains-fed equipment.
It includes functions for bass and treble control, volume control with built-in contour (can be switched off) and balance.
All these functions can be controlled by d.c. voltages or by single linear potentiometers.
Features
·
Few external components necessary
·
Low noise due to internal gain
·
Bass emphasis can be increased by a double-pole low-pass filter
·
Wide power supply voltage range.
QUICK REFERENCE DATA
Supply voltage (pin 3)
V P = V 3-18
typ.
12
V
Supply current (pin 3)
I P = I 3
typ.
35
mA
Maximum input signal with
d.c. feedback (r.m.s. value)
V i(rms)
typ.
2,5
V
Maximum output signal with
d.c. feedback (r.m.s. value)
V o(rms)
typ.
3
V
Volume control range
G v
-
80 to + 21,5 dB
Bass control range at 40 Hz
D
G v
-
19 to + 17
dB
Treble control range at 16 kHz
D G v
typ.
± 15
dB
Total harmonic distortion
THD
typ.
0,3
%
Output noise voltage (unweighted; r.m.s. value)
at f = 20 Hz to 20 kHz; V P = 12 V;
for max. voltage gain
V no(rms)
typ.
310
m V
for voltage gain G v =
-
40 dB
V no(rms)
typ.
100
m
V
Channel separation
at G v =
-
20 to + 21,5 dB
a cs
typ.
60
dB
Tracking between channels
at G v =
-
20 to + 26 dB
D
G v
max. 2,5
dB
Ripple rejection at 100 Hz
RR
typ.
50
dB
Supply voltage range (pin 3)
V P = V 3-18
7,5 to 16,5
V
Operating ambient temperature range
T amb
- 30 to + 80
° C
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 July 22.
September 1987
2
199643253.004.png
(1) Series resistor is recommended in the event of the capacitive loads exceeding 200 pF.
Fig.1 Block diagram and application circuit with single-pole filter.
199643253.005.png
Philips Semiconductors
Product specification
Stereo-tone/volume control circuit
TDA1524A
Fig.2 Double-pole low-pass filter for improved bass-boost.
Fig.3 D.C. feedback with filter network for improved signal handling.
September 1987
4
199643253.006.png 199643253.001.png
Philips Semiconductors
Product specification
Stereo-tone/volume control circuit
TDA1524A
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pin 3)
V P = V 3-18 max.
20 V
Total power dissipation
P tot
max.
1200 mW
Storage temperature range
T stg
- 55 to + 150
° C
Operating ambient temperature range
T amb
-
30 to +80
°
C
D.C. CHARACTERISTICS
V P = V 3-18 = 12 V; T amb = 25
°
C; measured in Fig.1; R G £
600
W
; R L ³
4,7 k
W
; C L £
200 pF; unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply (pin 3)
Supply voltage
V P = V 3-18
7,5
-
16,5
V
Supply current
at V P = 8,5 V
I P = I 3
19
27
35
mA
at V P = 12 V
I P = I 3
25
35
45
mA
at V P = 15 V
I P = I 3
30
43
56
mA
D.C. input levels (pins 4 and 15)
at V P = 8,5 V
V 4,15-18
3,8
4,25
4,7
V
at V P = 12 V
V 4,15-18
5,3
5,9
6,6
V
at V P = 15 V
V 4,15-18
6,5
7,3
8,2
V
D.C. output levels (pins 8 and 11)
under all control voltage conditions
with d.c. feedback (Fig.3)
at V P = 8,5 V
V 8,11-18
3,3
4,25
5,2
V
at V P = 12 V
V 8,11-18
4,6
6,0
7,4
V
at V P = 15 V
V 8,11-18
5,7
7,5
9,3
V
Pin 17
Internal potentiometer supply voltage
at V P = 8,5 V
V 17-18
3,5
3,75
4,0
V
Contour on/off switch (control by I 17 )
contour (switch open)
-
I 17
-
-
0,5
mA
linear (switch closed)
- I 17
1,5
-
10
mA
10,8 V
(contour cannot be switched off)
Voltage range forced to pin 17
V 17-18
4,5
-
V P /2 - V BE
V
September 1987
5
Application without internal potentiometer
supply voltage at V P ³
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