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