TDA4190 ,TV SOUND CHANNEL WITH DC CONTROLSBLOCK DIAGRAM
VCR
SWITCH
TURN ON
. . umm
swnm
DC
VOL UME
comm»
IN:
'ON:
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TDA4190
TV SOUND CHANNEL WITH DC CONTROLS
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TDA4190
TV SOUND CHANNEL WITH DC CONTROLS
INTERNAL VCR INPUT/OUTPUT SWITCHING
4W OUTPUT POWER INTO 169
NO SCREENING REQUIRED
HIGH SENSITIVITY
EXCELLENT AM REJECTION
LOW DISTORTION
DC TON E/VOLUME CONTROLS
THERMAL PROTECTION
DESCRIPTION
The TDA4190 is a complete TV sound channel with
DC tone and volume controls plus an internally
switched VCR input/output. Mounted in a Powerdip
16 + 2 + 2 package, the device delivers an output
power of4 W into 169 (d = 10%, Vs = 24V) or 1 .SW
into 89 (d = 10%, Vs = 12V). Included in the
TDA4190 are : f amplifier limiter, active low-pass
filter, AF preamplifier and power amplifier, turn-off
muting, VCR switch, mute circuit and thermal pro-
tection.
CONNECTION DIAGRAM
High output, high sensitivity, excellent AM rejection
and low distortion make the device suitablefor use
in TVs of almost every type. Further, no screening
is necessary because the device is free of radiation
problems.
DI P-20
(plastic package)
ORDER CODE : TDA4190A
TURN OFF MUTING 1
SOUND 1F INPUT
1F DECOUPLING
IF DECOUPLING
AND VCR SW
DETECTOR (FM)
DETECTORtFM)
DEEMPHASIS
AND AUX, AF OUT
VCR lN/OUT
GND E 6
20 AF PA INPUT
19 AF PA FEEDBACK
SUPPLY VOLTAGE
1 7 AF PA OUTPUT
16 GND
15 GND
OCVC OUTPUT
VOLUME CONTROL
TON E CONTROL POT
TONE CONTROL
CAPACITOR
HHI—JHUI—Tuui—lu
S..6148
November 1988
TDA4190
BLOCK DIAGRAM
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A Cy CG Cir)- Ht I
I E 18 1 "
vot TAGI' TURN ON J JO
AMI “Rem" v OMF.
REGULA'OR SWITCH comm»
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Arm l I
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19 t 5
- {IMO
IN cr--) *' _1 LOWPASS mama) a (i,',
ii R1 3 ' FILTER I swam LOHVNHSUL
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co fl T C---- T, 1 1 TDNF.
DI FM ' Ro _ dl ‘u, 'H
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HP VUI ‘N/(xn
A, T I 5.615111
T AUX AFCIJV
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vs Supply Voltage (pin 18) 28 V
V. Voltage at pin 1 fs Vs
Vi Input Voltage (pin 2) 1 Vpp
lo Output Peak Current (repetitive) 1.5 A
Io Output Peak Current (non repetitive) 2 A
I4 Current (pin 4) 10 mA
P101 Power Dissipation : at Tplns = 90 DC 4.3 W
at Tamb = 70 °C 1 W
Tsta, Tl Storage and Junction Temperature - 40 to 150 (
THERMAL DATA
Ru, HMS Thermal Resistance Junction-pins Max 14 'C/W
Rm ,xamb Thermal Resistance Junction-ambient Max 80 'C/W'
(') Obtained with GND pins soldered to printed circuit with minimized copper area.
gi; 'Sigilitliltfie,
