TDA5940-2 Infineon Technologies AG, TDA5940-2 Datasheet

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TDA5940-2

Manufacturer Part Number
TDA5940-2
Description
Video and sound IF with V&S SCART
Manufacturer
Infineon Technologies AG
Datasheet

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Manufacturer
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Price
Part Number:
TDA5940-2
Manufacturer:
SIEMENS
Quantity:
13 410
Part Number:
TDA5940-2
Manufacturer:
ERISSON
Quantity:
13 428
Video and Sound IF
with V & S SCART
Semiconductor Group
Type
TDA 5940-2
Functional Description and Application
Video IF Section
Video IF-broadband amplifier followed by a quasi-synchronous demodulator for negative
modulated IF signals. A Full-SCART interface is included in the video section. A separate video
output after the demodulator permits the installation of one or more sound traps at the input of the
SCART switch. The tuner AGC threshold is set by means of a potentiometer, all other functions can
switched with open collector transistors.
Sound IF Section
FM-IF limiter with FM-PLL demodulator. The AF section has a Full-SCART switch followed by a
volume control. The volume is controlled by an analog voltage.
Application
The TDA 5940-2 is suitable for application in television receivers with Full-SCART.
Features
Features video / sound scart
Active FM-PLL demodulator
AF control
Alignment - free sound IF
Ordering Code
Q67000-A5144
44
P-DIP-24-2
Package
P-DIP-24-2
TDA 5940-2
Bipolar IC
06.94

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TDA5940-2 Summary of contents

Page 1

Video and Sound IF with V & S SCART Features Features video / sound scart Active FM-PLL demodulator AF control Alignment - free sound IF Type TDA 5940-2 Functional Description and Application Video IF Section Video IF-broadband amplifier followed by ...

Page 2

Circuit Description Video IF Section The video IF section incorporates a four-stage, capacitively coupled, symmetrical and controlled amplifier, a limiter with selection and a mixer for quasi-synchronous demodulation of negative modulated IF signals followed by a video output amplifier. The ...

Page 3

Pin Functions Pin No. Function 1 Video IF input 2 Video IF input 3 Low-pass capacitor 4 De-emphasis capacitor 5 Audio SCART output 6 Audio output 7 Audio SCART input 8 Audio volume control 9 Sound IF input 10 Ground ...

Page 4

Block Diagram Semiconductor Group 47 TDA 5940-2 ...

Page 5

Absolute Maximum Ratings ˚C A Parameter Supply voltage Junction temperature Storage temperature Thermal resistance Operating Range Supply voltage Supply voltage delayed tuner AGC Ambient temperature during operation Input frequency range Semiconductor Group Symbol Limit Values ...

Page 6

Characteristics ˚ Parameter Total current SCART Switch H/open = SCART = Volume Control Voltage Minimal volume Maximal volume MUTE Voltage H/open = ...

Page 7

Characteristics (cont’d) Parameter Sound IF Section Min. sound IF-input voltage (min. control) AF-output voltage SCART AF-output voltage Total harmonic distortion Max. SCART-input voltage Gain SCART-sound switch Alignment Instructions At a video carrier input level 1.5 V, ...

Page 8

Test Circuit Semiconductor Group 51 TDA 5940-2 ...

Page 9

Application Circuit Semiconductor Group 52 TDA 5940-2 ...

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