Daewoo DTH-25G1FST/FSP/FS, Service Manual

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IP 02
- TDA8310A(IC PIP)
1. G ENE RAL DES CRIPTIO N
The TDA8310A is an alignm ent-free PAL/NTSC color processor for Picture-in-Picture (PIP) applications.
The m ain difference betw een the TDA8310 and the TDA 8310A is that the vision IF am plifier as been om itted in
the TD A8310A . Therefore, the circuit contains an input signal selector, a PA L/NTSC color decoder, horizontal and
vertical synchronization and an RG B/YUV switch.
The input signal selector has 2 C VBS inputs. O ne of the inputs can be sw itched between C VBS and Y/C and the
circuit can autom atically detect whether the incom ing signal is C VBS or Y/C.
The output signals for the PIP processor are;
Lum inance signal
Color difference signals (U and V)
Horizontal and vertical synchronization pulses.
The RG B/YU V switch can select between two RG B or YUV sources, e.g. between the PIP processor and the SCART
input signal.
The supply voltage for the IC is 8V. It is available in a 52-pin SDIP package.
2. FE ATURES
Video switch with 2 C VBS inputs. O ne input can be switched between C VBS and Y/C and the circuit
can autom atically detect whether the incom ing signal is C VBS or Y/C
* Intergrated chrom inance trap and bandpass filters(autom atically calibrated)
* Intergrated lum inance delay line
* Autom atic PAL/N TSC decoder which can decode all standards available in the world
* Horizontal PLL with an alignm ent-free horizontal oscillator
* vertical count-down circuit
* Low dissipation (560m W )
* Sm all am ount of peripheral com ponents com pared w ith com petition ICs.
49 V C O G N D T he term inal for G N D of V C O and S IF circuit.
50
51 V C O
V C O T he term inal to be connected w ith a tank coil for IF VC O .
52 V C O V
C C
(9V ) T he term inal for V cc of IF V C O and S IF.
53 Lim iter Input/
H .C orrection T he term inal for S IF signal input and H.curve correction.
54 R ipple F ilter T he term inal to be connected w ith a capacitor to stabilize
T he perform ance of S IF injection-lock circuit.
55 E X T A udio Input T he term inal for input of audio signal from T Vs ext.jack.
56 F M DC N F T he term inal for FM D C N egative F eedback and A G C F ilter for L-SE C A M .
PIN NA ME FUNCTION REM ARK
IC DESCRIPTION