AUDIO SWITCH AND DC VOLUME CONTROLFOR TV
.
TWO AUDIO INPUTS WITH SWITCHING
FACILITIES FULLY COMPATIBLE WITH THE
SCARTEUROPEAN NORM EN 50049
.
DC VOLUMECONTROL
DESCRIPTION
The TDA8196 is a monolithic integrated circuit in
DIP8package intended for TV applications.
PINCONNECTION (top view)
TDA8196
DIP8
(Plastic Package)
ORDER CODE : TDA8196
BLOCK DIAGRAM
AUDIO
INPUT (1)
AUDIO
INPUT (2)
AUDIO INPUT (2)
SWITCHING CONTROL
AUDIO INPUT (1)
15k
4
2
Ω
IMPEDANCE
ADAPTER
15k
Ω
1
+V
S
2
3
4
SWITCHING CONTROL (
3
30k
Ω
SWITCH
6.6V
8
AUDIO OUT
GND
7
6
VOLUME CONTROL
5
C
REF
)
V
SW
V
S
1
AUDIO
8
OUT
8196-01.EPS
May 1996
IMPEDANCE
ADAPTER
756
REFERENCE
VOLTAGE
47µF
V
C
8196-02.EPS
1/5
TDA8196
ABSOLUTEMAXIMUMRATINGS
Symbol Parameter Value Unit
V
T
stg,Tj
T
THERMALDATA
Symbol Parameter Value Unit
R
thj-amb
ELECTRICALCHARACTERISTICS
(refer to the test circuit, V
Symbol Parameter Pin Test Conditions Min. Typ. Max. Unit
V
V
V
R
C
C
R
K
R
K
V
THD Distortion 8 V
En Output Noise Level 8 DIN45405
En Output Noise Level 8 DIN45405
K
∆T
SVR Supply Voltage Rejection
V
Supply Voltage (pin 1) 16 V
s
Storage and Junction Temperature – 55 to 125 °C
Operating Ambient Temperature 0 to 70 °C
amb
Thermal Resistance Junction-ambient Max 200 °C/W
= 12V, T
S
Supply Voltage 1 10.8 12 13.2 V
S
Supply Current 1 Vi=0,VC= 0.5V 12 mA
I
S
Reference Voltage 5 6.6 V
R
Switching Voltage
SW
Audio Input 1
Audio Input 2
Switching Input Resistance 3 VSW= 12V 20 30 kΩ
SW
Switching Input Capacitance 3 10 pF
SW
Crosstalk between Switched
t
Inputs
V
Audio Input Amplitude (1 or 2) 4
i
Audio Input Resistance (1 or 2) 4
i
Output / Input Gain for Max Vol 0 dB
min
Audio Output Resistance 8 0.2 1 kΩ
O
Attenuation Range Selective Volmeter
V
Control Voltage Range
C
K
V=KMAX
K
V=KMIN
Vol. Attenuation Thermal Drift T
V
a
Output DC Shift 8 VC= 0.5 + 4.5V, Vi=2V
O
(Vol.min)
(Vol. max)
=25oC unlessotherwise specified)
amb
30
Selective Volmeter
= 8Hz), see Fig.1
(B
W
2 0.5 2 V
21013kΩ
= 8Hz), see Fig.2 70 90 dB
(B
W
6 0.5
=2V
i
= 0.5V Weighted 40 µV
V
C
= 4.5V Weighted 120 µV
V
C
= 0 to 70oC
amb
= 30dB, see Fig.3 0.04 dB/oC
K
V
V
= 0.5V, f = 100Hz
C
=1V
V
ripple
Selective Volmeter
8
= 8Hz), see Fig.4 and 5 38 dB
(B
W
RMS@VC
= 4.5V 0.4 1 %
PP
RMS
8
70 90 dB
4.5
0.25 V
5
12
8196-01.TBL
8196-02.TBL
V
V
RMS
V
V
RMS
RMS
8196-03.TBL
2/5
TEST CIRCUIT
C1 2.2µF
INPUT 1
R1
1k
Ω
R2
1k
Ω
INPUT 2
C2 2.2µF
Figure1 : TDA8196Crosstalk
V
4
2
SWITCH
CONTROL
C3 10µF
S
17
TDA8196
SWITCH
356
100µF
VOLUME
CONTROL
C4
Figure2 : Output Attenuationversus DC Volume
ControlVoltage
C5 1µF
8
VOLUME
CONTROL
(0.5 to 4.5)
R3
R
L
TDA8196
OUTPUT
10k
Ω
8196-03.EPS
Ct (dB)
-60
Input 1
-70
Input 2
-80
-90
-100
F(Hz)
-110
10 100 1000 10000 100000
Figure3 : KvDriftvs. T
amb
Variation
kV(dB)
1
0
kV (dB)
0
BW = 8Hz
-20
FLAT BAND
-40
-60
-80
-100
8196-04.EPS
012345
Figure4 : SVR vs. Ripple Frequency
SVR (dB)
60
50
40
30
V (V)
C
8196-05.EPS
T(C)
-1
amb
0 10203040 506070
8196-06.EPS
20
10
0
Fripple(Hz)
10010 1000 10000 100000
8196-07.EPS
3/5
TDA8196
Figure5 : SVR vs. VolumeAttenuation
SVR (dB)
70
60
50
40
30
20
10
SVR 15625Hz
SVR 50Hz
0 20406080100
APPLICATIONCIRCUIT
V
S
C1 2.2µF
INPUT 1
INPUT 2
C2 2.2µF
4
2
SWITCH
CONTROL
8196-08.EPS
C3 47µF
17
TDA8196
C4
47µF
VOLUME
CONTROL
VOLUME
CONTROL
(0.5 to 4.5)
SWITCH
356
8
C5 1µF
OUTPUT
8196-09.EPS
4/5
PACKAGE MECHANICALDATA
8 PINS - PLASTICDIP
TDA8196
Dimensions
Min. Typ. Max. Min. Typ. Max.
Millimeters Inches
A 3.32 0.131
a1 0.51 0.020
B 1.15 1.65 0.045 0.065
b 0.356 0.55 0.014 0.022
b1 0.204 0.304 0.008 0.012
D 10.92 0.430
E 7.95 9.75 0.313 0.384
e 2.54 0.100
e3 7.62 0.300
e4 7.62 0.300
F 6.6 0260
I 5.08 0.200
L 3.18 3.81 0.125 0.150
Z 1.52 0.060
Information furnishedis believed to be accurateand reliable. However, SGS-THOMSON Microelectronicsassumes no responsibility
for the consequences of use of such information norfor any infringement of patents or otherrights of third partieswhich may result
from its use. No licence is granted by implication or otherwise under any patent or patentrights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previouslysupplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components inlife
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1996 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I
2
I
C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
Australia - Brazil -Canada - China - France - Germany- Hong Kong - Italy -Japan - Korea- Malaysia - Malta - Morocco
The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
2
C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
2
the I
C Standard Specifications as defined by Philips.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
PM-DIP8.EPS
DIP8.TBL
5/5
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