Datasheet TDA8190 Datasheet (SGS Thomson Microelectronics)

TV SOUND CHANNELWITH DC CONTROLS

.

SEPARATEVCR INPUT ANDOUTPUTPINS

.

4W OUTPUTPOWERINTO 16Ω

.

NO SCREENINGREQUIRED

.

HIGHSENSITIVITY

.

EXCELLENTAM REJECTION

.

LOW DISTORTION

.

DC TONE/VOLUME CONTROLS

.

THERMAL PROTECTION

DESCRIPTION

TheTDA8190isa completeTVsoundchannelwith
DC tone and volume controls plus separate VCR
input and output connections.Mounted in a Pow­erdip 16 + 2 + 2 package,the device delivers an
output power of4W into 16Ω (d= 10%, V
or 1.5Winto 8Ω (d= 10%, V
the TDA8190 are : IF amplifier limiter, active low­pass filter, AF pre-amplifier and power amplifier,
turn-offmuting,mutecircuitandthermalprotection.
High output,highsensitivity,excellentAM rejection
and lowdistortionmake the devicesuitablefor use
in TVs of almostevery type. Further,no screening
is necessarybecausethe deviceis free of radiation
problems.

=12V). Includedin

s

= 24V)

s

TDA8190

DIP20

(Plastic Package)

ORDER CODE : TDA8190

PINCONNECTIONS

TURN-OFF MUTING

DEEMPHASIS AND VCR OUT

September 1993

SOUND IFINPUT

IF DECOUPLING
IF DECOUPLING

GND

GND
DETECTOR (FM)
DETECTOR (FM)

VCR INPUT

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

AF PA INPUT
AF PA FEEDBACK
SUPPLY VOLTAGE
AF PA OUTPUT
GND
GND
DCVC OUTPUT
VOLUME CONTROL POT
TONE CONTROL POT
TONE CONTROL CAPACITOR

8190-01.EPS

1/11

TDA8190

BLOCK DIAGRAM

V

IF IN

S

C5

C1

C2

C3

R1

C6

2

3

4

REGULATOR

IF
AMP.
LIM.

VOLTAGE

C7

R3

TURN-ONAND

TURN-OFF

LOW-PASS

FILTER

FM

DETECTOR

1

SWITCH

THRESHOLD

SENSOR

AMPLI.

R0 1.1k

C12

20

1418

DC VOLUME

CONTROL

DC TONE

CONTROL

Ω

AFPA

THERMAL

PROTECTION

C15

17

R4

19

C17

13

R7

12

R9

C16

R5

R8

R

P2

VOLUME

L

R6

5 61516

78

L1

C8

C9

9 10 11

C10 C13

S1

C11

VCR OUT VCR IN

C14

P1

TONE

ABSOLUTEMAXIMUMRATINGS

Symbol Parameter Value Unit

V

V
V

P

T

stg-Tj

s

I

o

I

o

I

4
tot

Supply Voltage (pin 18) 28 V
Voltage at Pin 1 ± V

I

Input Voltage(pin 2) 1 V

i

s

Output PeakCurrent (repetitive) 1.5 A
Output PeakCurrent (non repetitive) 2 A
Current (pin 4) 10 mA
Power Dissipation : at T

at T

pins
amb

=90°C

=70°C

4.3
1

Storage and Junction Temperature – 40 to 150 °C

THERMALDATA

Symbol Parameter Value Unit

R

th j–pins

R

th j–amb

(*) Obtained with GND pins soldered toprinted circuit with minimized copper area.

Thermal Resistance Junction-pins Max. 14 °C/W
Thermal Resistance Junction-ambient Max. 80 °C/W*

8190-02.EPS

pp

W
W

8190-01.TBL

8190-02.TBL

2/11

TDA8190

ELECTRICALCHARACTERISTICS

(refer to the testcircuit, V

=25°C, unlessotherwise specified)

T

amb

Symbol Parameter Test Conditions Min. Typ. Max. Unit

DC CHARACTERISTICS

V
V
V
V

I

IF AMPLIFIER AND DETECTOR

V

i (threshold)

V

AMR Amplitude Modulation Rejection (*) m = 0.3,V

R
C

R

DC VOLUME CONTROL

K

V

∆K

∆T

DC TONE CONTROL

K

AUDIO FREQUENCY AMPLIFIER

P

B Frequency Response of AudioAmplifier

SVR Supply Voltage Rejection P

V. C. R.

d Total Harmonic Distortionof Pin 9

SVR Supply Voltage Rejection at OutputPin 9 ∆f = 0, f

S + N

N

V

R

Supply Voltage(pin 18)

s

Quiescent Output Voltage (pin 17) 11 12 13

o

Pin 1 DC Voltage P2= 12kΩ, R1= 270kΩ 5.3 V

1

Pin 4 DC Voltage

4

Quiescent Drain Current 32 mA

d

Input LimitingVoltage at Pin2 (–3dB) Vo=4V
Recovered Audio Voltage (pin 9) ∆f=±7.5kHz, P2= 12kΩ 140 200 280 mV

9

Input Resistance (pin 2)

i

Input Capacitance(pin 2) 6 pF

i

Deemphasis Resistance C1= 68 to 888nF 0.75 1.1 1.5 kΩ

9

Volume Attenuation

v

(resistance control)

Control Voltage K = 0dB

c

V

Volume AttenuationThermal Drift
(resistance control)

pins

Tone Cut S1 :Off, V10= 200mV

T

Output Power (d = 10 %) Vs=24V,RL=16Ω

o

(– 3dB)

Output Signal

Signal to Noise Ratio at Output Pin 9 ∆f = 25kHz, Vi≥ 1mV 70 dB
Input Voltage (playback) Vo=4V

10

Input Resistance (playback) S1 :Off 10 kΩ

10

Total Harmonic Distortion for 20dB
Overload of V

= 24V,S1 : on, ∆f=±25kHz, VI=1mV, P1= 12kΩ,fo=4.5MHz, fm= 400Hz,

S

= 12kΩ

P

2

= 12kΩ

P

2

∆f = 0, P

rms

= 1mV,Vo=4V

i

= 12kΩ

2

RMS

10.8 27

3.2 V

50 100 µV

60 dB
30 kΩ

P2=0Ω
P
P

2
2

= 4.3kΩ
= 12kΩ

200268832dBdB

0
K = 26dB
K = 88dB

=25to85°C,P2= 4.3kΩ – 0.05 dB/oC

T

pins

1.3

2.6

14 dB

= 12kΩto 100Ω,fAF= 10kHz

P

1

3.5 4.1

=12V,RL=8Ω

V

s

= 1W, RL=16Ω, S1 : Off,

P

o

= 200mV, Vo=4V

V

10

@400 Hz

= 12kΩ, ∆f = 0, f

2

∆f=±7.5kHz, V

ripple

rms,P2

S1 :Off, V10=1V

10

= 1mV 0.5 %

i

= 120Hz,P2= 12kΩ 66 dB

= 0,S1 : Off 50 70 100 mV

rms,Vo

,

RMS

= 120Hz 26 dB

ripple

=4V

rms

1.5

15 50 kHz

0.5 3 %

V

dB

V
V
V

W
W

8190-03.TBL

3/11

TDA8190

ELECTRICAL CHARACTERISTICS (continued)

(refer to the test circuit,V

= 400Hz, T

f

m

Symbol Parameter Test Conditions Min. Typ. Max. Unit

OVERALL CIRCUIT

S +N

N

d Distortion (*) P

M Muting (*) V
∆f DeviationSensitivity P

* TestBandwidth = 20kHz.

=25°C,unless otherwisespecified).

amb

Signal to Noise Ratio(*) Vi≥ 1mV, Vo=4V

TEST CIRCUIT

V

S

0.1µF470µF

0.1µF

IF

input

V

i

0.1µF

2

51Ω

3

4

=24V, S1 : on, ∆f=±25kHz,VI=1mV,P1= 12kΩ,fo=4.5MHz,

S

∆f=0 70 dB

rms,

= 50mW, ∆f=±7.5Hz

o

= 24V RL=16Ω

V

s

= 12V RL=8Ω

V

s

=4V

o
2

R1

270kΩ

4.7µF

TDA 8190

7 8 9 101112131420

L1

120pF

C1
68nF

@noV1;V1= 0 100 dB

rms

=0,Vo=4V

2.2kΩ

rms

2.2kΩ

161565118

17

15kΩ

19

2.2µF

270Ω

2.2µF

12kΩ

0.5

0.5

3 6 kHz

470µF

220nF

2.2Ω

%
%

8190-04.TBL

V

o

RL

4/11

0.1µF

8.2pF

1µF

1µF

10nF

OFF

S1

fo

VCR OUT

ON

VCR IN

(V10)

P1

Ω

22k

Tone Volume

P2
22kΩ

V

C

8190-03.EPS

TEST CONDITIONS (unless otherwisespecified)

= 24V,QO=60, fO=4.5MHz, VIN= 1mV,fm= 400Hz, ∆f=±25kHz, P1=12kΩ,RL=∞,S1=on

V

S

TDA8190

Figure 1 : RelativeAudio OutputVoltage and

OutputNoise versusInput Signal

S+N

V (dB)

o

N (dB)

0

V

-2

o

-4

-6

-8

-10

-12

S+N

N

-14

10

V(µV)

i

4

10

-16

0dB =4V

-18
10 10

2

10

3

Figure 3 : DC Tone Control Cut-off the High

AudioFrequencies for someValues
of Resistance adjustedby P1

V (dB)

o

-0
P1 = 12kΩ

-10

P1 =5k
P1 =2k
P1 = 100

Ω

0dB = 4V

Ω

Ω

S1 : off

-20

-30
10

Ω

P2 =0
V

10

with f = 10Hz

2

R

= set for VO= 0dB

A

10

=

L

(Hz)

f

A

3

10

4

Figure 5 : ∆AMRversus Timing Frequency

Change

∆AMR (dB)

2

m = 0.3

1

V = 10mV

0

i

-1

-2

V =1mV

i

-3

-4

δ (kHz)

fo

-5

-40 -30 -20 -10 0 10 20 30

5

10

10
20
30
40
50
60
70
80
90

Figure2 : Output VoltageAlternationversus DC

VolumeControl Resistance (a) or ver­susDC Volume Control Voltage(b)

k (dB)

0

0

20

∆

f:

Set for V = 0dB
with P2 = 0Ω (V

40
60

V

80

C

P2

2 4 6 8 1012141618200

8190-04.EPS

0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 40

Figure4 : Amplitude Modulation Rejection

versusInput Signal

AMR (dB)

70

m = 0.3

60
50
40
30
20

10

5

0

8190-06.EPS

10 10

2

10

3

Figure6 : RecoveredAudio VoltageversusUn-

loadedQ-factor of theDetector Coil

V (mV)

9

260

∆

f = 7.5kHz

P2 = 12kΩ

220
180
140
100

60
20

10 20 30 40 50 60 70

8190-08.EPS

10

c

P2 (kΩ)
V (V)

C

V(µV)

i

4

= 0V)

Qo

10

5/11

5

8190-05.EPS

8190-07.EPS

8190-09.EPS

TDA8190

Figure 7 : Distortionversus Unloaded Q-factor of

the DetectorCoil

d(%)

1.2

V =10mV

i

1.0

0.8

0.6

0.4

0.2

Qo

0

10 20 30 40 50 60 70

Figure 9 : Distortionversus Tuning Frequency

Change

d (%)

8

L

o

Ω

R=16

7

P=1W

6
5
4
3
2
1

δ (kHz)

fo

0

-40 -30 -20 -10 0-50 10 20 30 40 50

Figure 11 : Audio AmplifierFrequencyResponse

V (dB)

o

2

0

Figure8 : Distortion versus FrequencyVariation

d(%)

1.2
R=16Ω

L

P = 250mW

o

0.8

0.4

∆f (kHz)

0

8190-10.EPS

01020

Figure10 : Distortionversus Output Power

d (%)

10

V = 12V, R = 8Ω

SL

V = 24V, R = 16

8

SL

Ω

6

4

2

0

8190-12.EPS

10

-2

10

-1

1

Figure12 : Output Power versusSupply Voltage

P (W)

o

5

d = 10%

4

30

8190-11.EPS

Pl

o

(W)

10

8190-13.EPS

-2

-4

-6

-8
10 10

6/11

S1 : off
V = 200mV

10

C11 toGND = 0
R=16Ω

L

R : set for V = 0dB

xO

with f = 400Hz

A

2

10

3

10

f (Hz)

A

4

10

5

3

2

R=8Ω

L

R = 16 = Ω

L

1

0

8 101214161820222426

8190-14.EPS

V(V)

s

28

8190-15.EPS

TDA8190

Figure 13 : Power Dissipation versus Supply

Voltage(sine waveoperation)

P(W)

tot

4

d = 10%

3

2

Ω

R=8

L

R=16Ω

L

1

V (V)

s

0

8 101214161820222426

28

Figure 15 : Quiescent Drain and QuiescentOut-

put Voltage versusSupply Voltage

20

15

V

o
V=0

i

P2 = 12kΩ

I

S

I (mA)

S

33

32

Figure14 : Power Dissipationand Efficiency

versus Output Power

P (W)

tot

3

R=16Ω

2.5

2

1.5

1

8190-16.EPS

L

1

23450

P

tot

η

P (W)

η (%)

100

80

60

40

20

o

0

8190-17.EPS

V

o

10

5

V(V)

0

8 12162024

31

30

s

29

28

APPLICATION INFORMATION

(refer tothe block diagram)

IF Amplifier-limiter

It is made by six differential stages of 15dB gain
eachso thatan openloopgainof 90dBisobtained.

While a unity DC gain is provided, the AC closed
loop gain is internally fixed at 70dB that allows a
typicalinput sensitivityof 50µV.

The differential output signal is single endedby a
20dB gain amplifier that through a buffer stage,
feeds the detector system.

Internal diodes protect the inputs against over­loads.

- Pin 2 isthe IF non-invertinginput

- Pin 3 isdecoupled by acapacitor to opentheAC
loop

- Pin 4 groundedby a capacitor,allows a typical

8190-18.EPS

sensitivityof 50µV. (seeVCR facility too).

Low-pass Filter,Fm Detector And Amplifier

The IF signal is detected by converting the fre­quency modulation into amplitude modulationand
then detectingit.

Since the available modulated signal is a square
wave, a 40 dB/decadelow-pass filter cuts its har­monics so thata sinewave can feedthetwo-reso­nances external networkL1, C8and C9.

This network definestheworking frequencyvalue,
the amplitudeof the recovered audio signal and its
distortion at thehighest frequencydeviations.

The two resonances f1 (series resonance)and f2
(parallelresonance)can becomputedrespectively
by :

⋅ X

X

L1

X

=

C9

XL1+ X

C8

C8

andXL1=X

C8

7/11

TDA8190

The ratio of thesefrequenciesdefines the peak-to­peak separationof the ”S” curve :

f

2

= √1 +

f

1

C

9

C

8

A differentialpeak detector detects the audio fre­quency signal that amplified, reaches the deem­phasisnetwork R0 ; C11.

The AF amplifier can be muted (see turn-onand
turn-offswitch and VCR facility).

- Pin 7 is the output of thelow-pass filterand one
input of the differentialpeak detector

- Pin 8 is the other input of the differential peak
detector

- Pin 9isusedtoprovidetherequireddeemphasis
timeconstantbygroundingitwithC11.Atthispin,
the internal impedance of which is typically of

1.1K, is availablethe recoveredaudio signal as
auxiliaryoutput.

DC Tone Control

Thesamesignalavailableorappliedto pin10,after
a voltage to current converter, reaches, the DC
Tone Control block. It operates, inside the 10KHz
bandwidth, by cutting the high audio frequencies
witha variable slope of an RC network,by means

.

of P

1

The maximum slopeof the RC network isof 20dB
perdecade and its pole isdefined by :

X

=6.8K, typically.

C11

Pin11 -At this pin is tiedthe tone capacitor.
Pin 12 - Is the DC Tone Control input.

DC VolumeControl

After tone controlregulation, theAF current signal
reachesthe DCvolume controlblock that controls
its intensity.The normalcontrol,forwhichtheblock
has been designed for a narrow spread, is pro­duced by P2 ; however, without P2, a voltage
controlcan beoperated by forcinga voltageat pin
13 throughR8.

- Pin 12, already seen as a DCTC input, is the
referencevoltagefor theDCVC. Becauseofthis,
a smallinterfacebetweentoneandvolumeregu­lation can be expected.

- Pin 13 isthe DC volumecontrolinput.

- Pin 14 after a current to voltage converter, the
audio frequencysignal comes out at thispin.

Audio Frequency Power Amplifier andTher­mal Protection

ThroughC12 the signalreaches the amplifier non­invertinginput. The closedloop gain is definedby

the feedback at pin 19 (invertinginput) or by the
ratio :

G

V

= 20 Log

R5 + R4

R5

(dB)

The amplifier, thermallyprotected,can supply 4W
of powerinto a 16 load with24Vof supplyvoltage.
The poweroutput stageis a class B type.

- Pin20 is the non-invertinginput

- Pin19 is the invertinginput

- Pin17 is the output of the AFPA.

Turn-onAnd Turn-off Switch

This block has been mainly designed to avoid,
turning on theTV set,that transients,producedby
the visionoutput, can reachthe speaker.

Moreover this block, together an optimized rise
timeandfulltimeofthe supplyvoltageV

, canavoid

s

anypop generally producedduring theturn-onand
the turn-offtransients.

Turninigon, pin 1 followsthe supply voltage V

by

s

means of C7 ; a threshold is reached and the
muting of the AFPA output (pin 17) is suddenly
produced.

WhenV

reachesit stop,C7chargesitself through

s

the input impedance of pin 1 and the muting is
removedwith a timeconstant dependingonthe C7
value.

Turningoff, the V

trend,in series tothe voltageV

s

V1and which C7 is charged, drivespin 1 at a low
level threshold and a sudden mutingis produced
again.

Sincethe turn-offcanbe operatedwith high output
power, if the muting operates when the current
through the inductance of the speaker is different
from zero,a flybackis generatedand then asmall
pop canbe produced.

The flybackis clippedby integrateddiodes.
The thresholdsthatproduce the muting havebeen

choseninthewaythat1 Vppof rippleonthesupply
voltage does not produce anyswitching..

- Pin1 is theturn-on and turn-off mutinginput.

Supply

Anintegratedvoltageregulatorwithdifferentoutput
levels, supplies all the blocksoperating with small
signal.

- Pin18 is the main supplyof the device.

- Pin5 ; pin6 ; pin 15 andpin16 arethe groundof
the supply. Thesepinsareused to drainout from
the device the heat produced by the dissipated
power.

s

8/11

Components Units Appl. 4.5 MHz Appl. 5.5 MHz Appl. 6 MHz

L1 µH10

=60

Q

o

12

Qo=80

10

Qo=70
C5 pF 120 68 68
C4 pF 9 8.2 6.8
C8 nF 68 47 47

C. F Murata SFE 4.5 MA Murata SFE 5.5 MB Murata SFE 6.0 MB

C1 pF 22 18 18
R2 Ω 1000 560 470
R3 Ω 1000 560 470

Figure16 : ApplicationCircuit

R1

270kΩ

C12

4.7µF

TDA 8190

1µF1µF

AUX

R12

8.2KΩ

a

S1

b

R11

10KΩ

10nF

R10
18kΩ

C9C6C8C7

2.2kΩ

22kΩ

VCRIN

2.2kΩ

R4

P1

Tone Volume

161565118

17

R9

15kΩ

C13

19

2.2µF

R5

R6
12kΩ

P2
22kΩ

C14

1µF

V

C

270W

R8

IF

input

V

S

C1

R3

C16 C11

CF

R2

C2

0.1µF

0.1µF

0.1µF470µF

2

3

4

7 8 9101112131420

L1

C5

C3

C4

VCR OUT

VCR OUT

TDA8190

C15

470µF

C10
220nF

R7

2.2

V

o

RL

Ω

8190-05.TBL

9/11

8190-19.EPS

TDA8190

Figure17 : PCBoard and ComponentsLayout of the Circuitof Figure16 (1 : 1 scale)

GND

AFOUT

V

S

PIN4

IF IN

GND

AUX
VCROUT

GND

VCRIN

VCROUT

CF

C1

C5

R11

-

C16

+

C2
C3

R3

L1

C7

C8

R2

+

-

C4

R10

R12

S1

C12

-

R1

C6

C11

TDA 8190

R4 R6

ab

C15

C13

R5

+

C9

-

C14

+

R9
R8
R7

-

+

P2

P1

C10

8190-20.EPS

10/11

PACKAGE MECHANICALDATA

20 PINS- PLASTICDIP

TDA8190

I

a1

L

Z

Dimensions

b

e3

20 11

110

B

D

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

e

Z

F

E

a1 0.254 0.010

B 1.39 1.65 0.055 0.065
b 0.45 0.018

b1 0.25 0.010

D 25.4 1.000
E 8.5 0.335
e 2.54 0.100

e3 22.86 0.900

F 7.1 0.280

i 3.93 0.155
L 3.3 0.130
Z 1.34 0.053

b1

PM-DIP20.EPS

DIP20.TBL

Information furnished is believed to be accurate andreliable. However,SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of suchinformation nor forany infringement of patents or other rights of third parties which may result
from its use. No licenceis granted by implication or otherwise under anypatent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied.SGS-THOMSON Microelectronicsproducts are not authorized for useas critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.

 1994 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

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2

C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips

2

the I

C Standard Specificationsas defined by Philips.

SGS-THOMSON Microelectronics GROUPOF COMPANIES

11/11