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ILA8395N

IK Semiconductor
Part Number ILA8395N
Manufacturer IK Semiconductor
Description SECAM Decoder
Published Dec 21, 2005
Detailed Description TECHNICAL DATA SECAM decoder FEATURES •Fully integrated filters •Alignment free •For use with baseband delay ILA8395N ...
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ILA8395N
ILA8395N


Overview
TECHNICAL DATA SECAM decoder FEATURES •Fully integrated filters •Alignment free •For use with baseband delay ILA8395N GENERAL DESCRIPTION The ILA8395N is a self-calibrating, fully integrated SECAM decoder.
The IC should preferably be used in conjunction with the PAL/NTSC decoder ILA8362ANS (TDA8362A) or TDA8366 and with the switched capacitor baseband delay circuit ILA4661 (TDA4661, TDA4660).
The IC incorporates HF and LF filters, a demodulator and an identification circuit (luminance is not processed in this IC).
The IC needs no adjustments and very few external components are required.
A highly stable reference frequency is required for calibration and a two-level sandcastle pulse for blanking and burst gating.
16 QUICK REFERENCE DATA SYMBOL Vp V16(p-p) Tstg Tamb PARAMETER Positive supply voitage; pin 3 Composite video input voltage (peak -to- peak value); pin 16 Storage temperature range Operation ambient temperature range w w w t a .
D S a e h 7.
2 -25 -25 U 4 t e MIN.
.
c 1 m o 8 ORDERING INFORMATION ILA8395N DIP TA = -40° to 125°C MAX.
UNIT 8.
8 1.
5 +150 +70 V V °C °C 1 www.
DataSheet4U.
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1 Block diagram.
2 ILA8395N FUNCTIONAL DESCRIPTION The ILA8395N is a self-calibrating SECAM decoder designed for use with a baseband delay circuit.
During frame retrace a 4.
433619 MHz reference frequency is used to calibrate the filters and the demodulator.
The reference frequency should be very stable during this period.
The Cloche filter is a gyrator-capacitor type filter the resonance frequency of which is controlled during the calibration period and offset during scan; this ensures the correct frequency during calibration.
The demodulator is a Phase-Locked Loop (PLL) type demodulator which uses the frequency reference and the bandgap reference to force the PLL to the required demodulation characteristic.
The low frequency de-emphasis is matched to the PLL and is controlled by the tuning voltage of the PLL.
A digital identification c...



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