TDA4452 TEMIC Semiconductors, TDA4452 Datasheet

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TDA4452

Manufacturer Part Number
TDA4452
Description
Video IF Amplifier for Multistandard TV Receiver and VTR Appliances
Manufacturer
TEMIC Semiconductors
Datasheet

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TELEFUNKEN Semiconductors
Rev. A1, 15-Aug-96
Video IF Amplifier for Multistandard TV Receiver and VTR
Appliances
Technology: Bipolar
Features
D
D
D
D
D
D
D
positively modulated IF-signals with equal polarity of
Standard B/G-L suitable, processes negatively and
the output signal
Ultra white inverter and ultrablack limiter for
reducing transmission interference
Internally noise protected gain control, no flyback
pulses required
Expanded video frequency response allows the
demodulation of amplitude modulated MAC signals
High input sensitivity
Minimal intermodulation distortions
Small differential error
Figure 1. Block diagram
D
D
D
D
D
D
D
D
Case: DIP18
Fast AGC by controlled discharge of the AGC
capacitor
Standard L mode: AGC acting on peak white level,
capacitor discharge control by averaged video signal
Standard B/G: AGC acting on the sync. pulse peak
Constant input impedance
Video output voltage with narrow tolerance
Video input/output for insertion of external sound trap
VTR input/output with video switch
Adjustable, delayed AGC for the tuner
ESD protected
TDA4452
1 (11)

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TDA4452 Summary of contents

Page 1

... Standard B/G: AGC acting on the sync. pulse peak D Constant input impedance D Video output voltage with narrow tolerance D Video input/output for insertion of external sound trap D VTR input/output with video switch D Adjustable, delayed AGC for the tuner D ESD protected Case: DIP18 Figure 1. Block diagram TDA4452 1 (11) ...

Page 2

... TDA4452 Pin Description Pin Function 1,18 IF input 2 Video switch control 3 VTR input VTR output (inverted) 5 Supply voltage Video output Video input, after sound trap Circuit Description The following functional units are integrated in this circuit combination for processing multi standard ...

Page 3

... V 100 Pin Pin AGC 2.7 o(pp must be transmitted for each complete frame TDA4452 Value Unit 125 C –25 to +70 C –25 to +125 C Value Unit 60 K/W Typ. Max. Unit 13 ...

Page 4

... TDA4452 Parameters Test Conditions / Pins Ultra black level at standard L White level at standard L 4) Video signal standard L Output dc current Difference of the video signals, standards L and B/G Upsetting factor sync. pulse Tild between black and white Clamping level of black limiter Threshold of the ultra white ...

Page 5

... Sync. pulse level Output current TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 Symbol Min. Pin Pin 6 B Pin Pin Pin (peak to peak) 4(pp Figure 2. Test circuit TDA4452 Typ. Max. Unit 2 MHz 2 2 – (11) ...

Page 6

... TDA4452 6 (11) Figure 3. Test of intermodulation TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 ...

Page 7

... TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 Figure 4. Application circuit TDA4452 7 (11) ...

Page 8

... TDA4452 Pin 3 VTR input 8 (11) Pin 1,18 IF input Pin 6 Output video switch Pin 2 Video switch Pin 4 VTR output Pin 7 Input (from sound trap) video switch TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 ...

Page 9

... Pin 9 Video output TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 Pin 12 Standard switch Pin 16 IF ACC TDA4452 Pin 10,11 Demodulator Pin 13 Averaging (standard L only) Pin 14,15 Tuner ACC 9 (11) ...

Page 10

... TDA4452 Dimensions in mm Package: 18-pin dual inline plastic 10 (11) TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 ...

Page 11

... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 15-Aug-96 unauthorized use. TDA4452 11 (11) ...

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