IC Phoenix
 
Home ›  TT23 > TDA4443,MULTISTANDARD VIDEO IF AMPLIFIER
TDA4443 Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
TDA4443STN/a4avaiMULTISTANDARD VIDEO IF AMPLIFIER


TDA4443 ,MULTISTANDARD VIDEO IF AMPLIFIERTDA4443MULTISTANDARD VIDEO IF AMPLIFIER.SWITCHING OFF THE IF AMPLIFIER WHEN DESCRIPTIONOPERATING IN ..
TDA4445 ,SOUND IF AMPLIFIERTDA4445ATDA4445BSOUND IF AMPLIFIER.QUADRATURE INTERCARRIER DEMODU-LATOR.VERY HIGH INPUT SENSITIVITY ..
TDA4445A ,Quasi Parallel Sound Processing with Quadrature Intercarrier DemodulatorGENERAL DESCRIPTION essing, independentfrom AM.Linear quadrature demodulatorThis circuit includes t ..
TDA4445A ,Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulatorapplications (B/G and L)No adjustmentof the AM demodulatorLow AM distortionPIN CONNECTIONSIF INPUT ..
TDA4445B ,Quasi Parallel Sound Processing with Quadrature Intercarrier DemodulatorBLOCK DIAGRAMSTDA4445ATDA4445B
TDA4445B ,Quasi Parallel Sound Processing with Quadrature Intercarrier DemodulatorBLOCK DIAGRAMSTDA4445ATDA4445B
TF2-48V , SMALL POLARIZED RELAY WITH HIGH SENSITIVITY
TF2-48V , SMALL POLARIZED RELAY WITH HIGH SENSITIVITY
TF252TH-4-TL-H , Electret Condenser Microphone Applications
TF28F008SA-100 , 8-MBIT (1-MBIT x 8) FlashFileTM MEMORY
TF2-H-5V , SMALL POLARIZED RELAY WITH HIGH SENSITIVITY
TF2-L2-5V , SMALL POLARIZED RELAY WITH HIGH SENSITIVITY


TDA4443
MULTISTANDARD VIDEO IF AMPLIFIER
TDA4443
MULTISTANDARD VIDEO IF AMPLIFIER INPUT
STANDARD SWITCHING
GROUND AGC TIME CONSTANT
DELAYED TUNERAGC OUTPUT
TUNER AGC ADJUST
GATINGPULSE INPUT
REFERENCELC NETWORK INPUT
GROUND
NOTTOBE CONNECTED
NOTTOBE CONNECTED
VIDEO SIGNAL OUTPUT
DISCHARGETIME CONSTANT
REFERENCELC NETWORK
SUPPLYVOLTAGEVCC
PIN CONNECTIONS
DIP16

(Plastic Package)
ORDER CODE:
TDA4443
.SWITCHING OFF THEIF AMPLIFIER WHEN
OPERATINGIN VTR MODE.DEMODULATION OF NEGATIVE OR POSI-
TIVEIF SIGNALS. THE OUTPUT REMAINS THE SAME POLARITYIN EVERY CASE.IF AGC AUTOMATICALLY ADJUSTED TO
THE ACTUALSTANDARD.TWO AGC POSSIBILITIES FOR B/G MODE: GATED AGC UNGATED AGC ON SYNC. LEVEL AND
CONTROLLED DISCHARGE DEPENDENT THE AVERAGE SIGNAL LEVEL FOR VTR
AND PERI TV APPLICATIONS
FOR STANDARDL: FAST AGC ON PEAK
WHITE BY CONTROLLED DISCHARGE.POSITIVEOR NEGATIVE GATING PULSE.EXTREMELY HIGH INPUT SENSITIVITY.LOW DIFFERENTIAL DISTORTION.CONSTANT INPUT IMPEDANCE.VERY HIGH SUPPLY VOLTAGE REJECTION.FEW EXTERNAL COMPONENTS.LOW IMPEDANCE VIDEO OUTPUT.SMALL TOLERANCES OF THE FIXED VIDEO
SIGNAL AMPLITUDE.ADJUSTABLE, DELAYED AGC FOR PNP
TUNERS
DESCRIPTION

The TDA4443isa VideoIF amplifier withstandard
switchfor multistandardcolouror monochromeTV
sets, and VTR’s.
WIDEBAND AMPLIFIER DEMODULATOR
VIDEO 10SUPPLY
UNIT
GATING
AMPLIFIER45 6
VIDEO
OUTPUT
GATING
PULSE INPUT INPUT
TUNER
AGC
OUTPUT
TUNER
AGC
ADJUST VCC
STANDARD
SWITCHS
CONTROL
AMPLIFIER
TUNER
CONTROL
TDA4443

4443-02.EPS
BLOCK DIAGRAM
GENERAL DESCRIPTION

This videoIF processing circuit integrates the fol-
lowing functional blocks:.Three symmetrical, very stable, gain controlled
wideband amplifier stages- without feedbacka quasi-galvanic coupling..Demodulator controlledby the picture carrier.Video output amplifier with high supply voltage
rejection. Polarity switchfor the video output signal. AGCon peak white level. Gated AGC. Discharge control. Delayed tuner AGC.At VTR Reading mode the video output signalat ultra white level
TDA4443
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit

VCC Supply Voltage RangePin13 15 V Open Loop Voltage Pin5 max. VCC V
Vext External Voltage Pin4 12 V Control Currentfor VTR Mode Pin4 0.3 mA Control Currentfor Standard Mode Pin2 0.5 mA Max. Video Output Current Pin11 5 mA Short Circuit Current(t≤ 1sec) Pin11 30 mA
Ptot Power Dissipation 1 W Junction Temperature 125 oC
TAMB Ambient Temperature Range 0to +70 oC
Tstg Storage Temperature Range -25to +125 oC
4443-01.TBL
THERMAL DATA
Symbol Parameter Value Unit

Rth(j-a) Junction-ambient Thermal Resistance 70 o C/W
4443-02.TBL
ELECTRICAL OPERATING CHARACTERISTICS

TAMB =25oC, VCC= 12V, unless otherwise spacified. Test Circuit Page5.
Symbol Parameter Pin Min. Typ. Max. Unit

VCC Supply Voltage 13 10 12 15 V
ICC Supply Current (VCC= 12V,V4= 3.5V, VIN =0)
Pin6, PIn7, PIn2 open 55 75 mA
V11 Ultra White Levelat Standard B/G
VCC= 15V,V4= 3.5V 4.8 5.1 5.6 V
VAA Ultra Black Clamping Levelat Standard B/G
SIGNAL1 1.70 1.85 2.10 V Pictureto sync. output voltageofthe video signal without loadin
standard B/G (residual carrier 10%) SIGNAL1 2.6 2.9 3.3 VPP Pictureto blanking level output voltageofthe video signal without
loadin standardL (blanking levelat 28%of carrier amplitude)
SIGNAL2 (residual carrier 5%) 1.80 2.1 2.40 VPPVp− Vblank)− Vblank
Output voltage changeof the pictureto blanking level from
standardLto standard B/G (mode BG: signal1, modeL: signal2) 11 10 %
ΔVblack Supply voltageinfluenceon the ultra black levelin standard B/G 11 0.5 %V
ΔVwhite Supply voltageinfluenceon the ultra white levelin standard B/G 11 1 %V
ΔVvideo Video Bandwidth
Video Signal Attenuation withVINat 4.43MHz 1 1.5 dB
Bvideo Video Bandwidthat -3dB 11 6 MHz
ΔVvideo Video frequency response changes witin the AGC range 11 0.5 2.0 dB DC Output Current (V11= 10V, VCC= 15V) 11 1.5 2 mA Gating Pulse Current 7 0.30 1.0 mA DC Voltageat Gating Input 7 1.3 1.6 V Input Voltage SensitivityVIN (with VOUT =VO- 3dB)
Standard B/G SIGNAL1
120 μVRMS
TDA4443
ELECTRICAL OPERATING CHARACTERISTICS (continued)
TAMB =25oC, VCC= 12V, unless otherwise spacified.Test Circuit Page5.
Symbol Parameter Pin Min. Typ. Max. Unit
Control Current StatusC (see statusof mode switching)-V2= 6.3V 2 60 400 μA
ΔGIF IF AGC Range 60 dB
IAGC Available Tuner AGC Current (10dB above the AGCstarting point) 5 8 12 mA
ΔAGC Delay Between Tuner AGC andIF AGC (pin6not connected) 5 50 dB
VIF
V2IF residual carrieratthe video o/p withingthe
AGC range 38.9MHz
77.8MHz
mVRMS
mVRMS Differential Distortionon Composite VIdeo Signal Amplitude
SIGNAL3 5 % Attenuationof soundto color carrier intermodulation signal (1.07MHz)
referredtothe demodulated color carrier: PIcture Carrier= 0dB,
Color Carrier= -6dB, Sound Carrier= -24dB 50 dB
ΔSync
Sync
Sync. Pulse Compression withintheIF AGC Range 3 %
Input Impedance: Resistance
Capacitance
2.5 Switchoff Control Voltagefor VTR Mode 4 9 10 V Switchoff Currentfor VTR Mode 4 150 μA
4443-04.TBL
4443-03.EPS
4443-04.EPS
SIGNAL1
(standard B/G)
1000mV
300mV
0mV
100%
Demodulated Signal

100% 10% Signal
TDA4443
4443-05.EPS
/4443-06.EPS
SIGNAL2
(standardL)
1000mV
300mV
0mV
100%
Demodulated Signal

100%
IFSignal

900mV
500mV
300mV
0mV
200mV
4.43MHz
4.43MHz
200mV
Demodulated Signal

4443-07.EPS
SIGNAL3

10nF
22μF
N.C.N.C.
68nF
VIDEO
OUTPUT
SUPPLY
VOLTAGE
33pF 0.5μH
5kΩ2.5kΩ200kΩ
20kΩ GATING
22nF
47nF 22nF
22nF
Attenuateur
Modulator
Video
Generator
MODESWITCHING
2.2μF I5
VCC
TDA4443
TEST CIRCUIT
TDA4443
DEFINITION OF MODE SWITCHING
Status Pin2 Pin4 Function
Not connected No External Voltage Standard B/G mode, gatedcharge and discharge. 12V
HIgh Impedance External Voltage Standard B/G, ungated, chargingupto sync. level, discharging
dependant from average signal (perioperation). 12V
Low Impedance External Voltage At standardL ungated, chargingupto peak white level,
discharge dependant from average signal level, inverted polarity the video output. No specifications ≥ 7.5V In VTR reading mode theIF amplifieris blocked, turned gain
controlled down: the video output signalis fixedat constant ultra
white levelfor standard B/G mode.
The gating pulseatPin7is internallyswitchedoff.
4443-05.TBL
STATUS OF MODE SWITCHING, REFERRING TO CONTROL VOLTAGE PIN2
Control Voltage
Pin2
Connectionsof
Pin2 Status Function

1.2to 2.5V* Open A Standard B/G gated sync. operation
3.0to 5.0V High Impedance B Standard B/G,no sync., operation 6.5V Low Impedance C StandardL
0.0to 0.8V Ground D StandardL VoltagemeasuredonPin2.
4443-06.TBL 8 12(V)
I2(nA)
TDA4443
+12V B CSTATUS
4443-09.EPS
TDA4443
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED