AN5637 Datasheet – SECAM Decoder IC – Panasonic

Part Number : AN5637

Function : SECAM Decoder IC

Package : DIP 16 Pin type

Manufacturers : Panasonic Corporation

Image and Pinouts :

AN5637 datasheet


Description :

The AN5637 is a Chroma signal processing circuit for use in SECAM system. It outputs the color difference signal.

Features :

• Built-in bell filter, deemphasis circuit
• One point adjustment
• Small number of external components

Applications :

• SECAM system TV

Pin Descriptions :

1. Reference frequency signal/Ident input pin

2. Bell filter output monitor pin

3. Power supply pin

4. Black level adjustment voltage input pin

5. Black level adjustment reference voltage output pin

6. Grounding pin

7. Bell filter automatic adjustment sample hold pin [ … ]


Other data sheets within the file : AN-5637

AN5637 Datasheet PDF Download

AN5637 pdf

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TDA9384 PDF – TV Signal Processor-Teletext Decoder

Part Number : TDA9384

Function : TV Signal Processor-Teletext Decoder

Package : DIP 64 Pin Type

Manufactures : Philips

Images :

TDA9384 datasheet pdf

Description :

The various versions of the TDA9384 series combine the functions of a TV signal processor together with a µ-Controller and US Closed Caption decoder. Most versions have a Teletext decoder on board. The Teletext decoder has an internal RAM memory for 1or 10 page text. The ICs are intended to be used in economy television receivers with 90° and 110° picture tubes. The ICs have supply voltages of 8 V and 3.3 V and they are mounted in S-DIP envelope with 64 pins. The features are given in the following feature list. The differences between the various ICs are given in the table on page 4.

Features :

TV-signal processor • Multi-standard vision IF circuit with alignment-free PLL demodulator • Internal (switchable) time-constant for the IF-AGC circuit • A choice can be made between versions with mono intercarrier sound FM demodulator and versions with QSS IF amplifier. • The mono intercarrier sound versions have a selective FM-PLL demodulator which can be switched to the different FM sound frequencies (4.5/5.5/6.0/6.5 MHz). The quality of this system is such that the external band-pass filters can be omitted. • Source selection between ‘internal’ CVBS and external CVBS or Y/C signals • Integrated chrominance trap circuit • Integrated luminance delay line with adjustable delay time • Asymmetrical ‘delay line type’ peaking in the luminance channel • Black stretching for non-standard luminance signals • Integrated chroma band-pass filter with switchable centre frequency • Only one reference (12 MHz) crystal required for the µ-Controller, Teletext- and the colour decoder • PAL/NTSC or multi-standard colour decoder with automatic search system • Internal base-band delay line • RGB control circuit with ‘Continuous Cathode Calibration’, white point and black level off set adjustment so that the colour temperature of the dark and the light parts of the screen can be chosen independently. • Linear RGB or YUV input with fast blanking for external RGB/YUV sources. The Text/OSD signals are internally supplied from the µ-Controller/Teletext decoder • Contrast reduction possibility during mixed-mode of OSD and Text signals • Horizontal synchronization with two control loops and alignment-free horizontal oscillator • Vertical count-down circuit • Vertical driver optimized for DC-coupled vertical output stages • Horizontal and vertical geometry processing • Horizontal and vertical zoom function for 16 : 9 applications • Horizontal parall […]


TDA9384 Datasheet