TEA5620 ,Color TV PAL DecoderG " M 0
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TEA5620
COLOR TV PAL DECODER
I PHASE LOCKED REFEREN ..
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COLOR TV SECAM DECODER FOR LOW-COST TV SET ..
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TEA5620
Color TV PAL Decoder
(G kt IRE tl))
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TEA5620
COLOR TV PAL DECODER
u PHASE LOCKED REFERENCE OSCILLATOR
u U AND V AXIS DECODERS
" ACC AND IDENTIFICATION DETECTORS
u KILLER
tt USE OF A STANDARD 4.43 MHz Xtal
u COMPATIBILITY WITH THE SECAM DECO-
DER TEA5630 FOR PAL-SECAM APPLICA-
DESCRIPTION
The TEA5620 is a color TV PAL decoder. It com-
bines all functions required for the identification and
demodulation of PAL signal.
PIN CONNECTIONS
TEA5620
(Plastic Package)
Subcarrier input t 1
ACC Capacitor c 2
Burst reference capacitor C 3
ACC subcarrier output C
Oscillator loop Filter1 C
Oscillator loop Filter 2 C 6
Line retrace input C 7
Direct channel input [1 fl
'Ground Lis
C] Vcc
Cl Burst gate pulse input
3 90° Shift capacitor
C] Xtal Drive
C] xtal Feed back
(B-Y) output
C) (R-Y) output
Delayed cha nnel input
G round E88TEA5620-01
* Pins 9 and 10 have to be both grounded.
November 1988
SGS-THOMSON
MyaKo3lEl,EC1rllN:WNt8
DtRECT
EB C7] reIrace
DELAYED
CHANNEL
ACC ] CHANNEL
m I AMPLIFIER
Sub :1 a A
carrier
Kl LLER
4.8 KG
KILLER
n»1 no
—-—u- -—b——1.— n n '
l_l_\L_
4 #5 burst gate pulse n n A —>
BURST /
4 burst gate
l'ifl-O pu|se
PHASE p—T—q/r1 FILTER‘——- VCO
4 us burst
gate pulse
I BURST
l I V COND.
burst gate
pulse H/2
SWITCH
EBST EA5620-02
BLOCK DIAGRAM
TEA5620
