Daewoo 14Q2, 21Q2, 21Q1, 14T2, 21Q4, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 20T2, 21T1, 14Q3, 20Q2, 20T1 Luminance

	No	Name	Description
			to the luminance input pin 27.
			The pin is internally AC coupled to the luminance clamp via a capacitor of
			50pF; clamping action occurs during burstkey period.
	28	LUMINANCE	The luminance output signal is approximately l V black-white with typical
		OUTPUT	output impedance of 25O ohm.
29		B-Y OUTPUT	The maximum output impedance of pins 29 and 30 is 500 when PAL/NTSC
30		R-Y OUTPUT	signals are identified. When SECAM is identified by the SECAM add-on and
			no PAL/NTSC is already identified by the ASM, then the ASM sets the
			-(B-Y)/-(R-Y) output switch open (via DEMSW).
			This enables the -(B-Y)/-(R-Y) outputs of the TDA8395 to be directly connected
			to pins 29 and 3O respectively.
	31	B-Y INPUT	The -(B-Y),-(R-Y) output signals (supplied from baseband delay line) are AC
32		R-Y INPUT	coupled, via a coupling capacitor of 10nF or greater, to the -(B-Y)/-(R-Y) inputs;
			both inputs are clamped during burstkey period.
	33	SECAM REF	The SECAM reference output is directly connected to pin l of the TDA8395 for
		OUTPUT	SECAM decoding ; it also can be used as a reference for comb filter applications.
	34	X-TAL 3.58	To ensure correct operation of both:
35		X-TAL 4.43	- colour processing internal circuits,
			- sync calibration internal circuits,
			it is only allowed to have 3.6MHz Xtals on pin34: both 4.4MHz,3.6MHz Xtals
			are allowed on pin 35.
			If pin 35 is not used: then it is left open in application (also XA,XB=O,1 ).
	36	LOOP FILTER	One of the important aspects of the PLL is the 1oop filter connected to pin 36;
		BURST PHASE	it influences the dynamic performance of the loop.
		DETECTOR
	38	CVBS OUTPUT	The output amplitude is 1Vpp (transfer gain ratio between CVBS1int or
			CVBS2ext or CVBS3ext/Ys-vhs and CVBSout is 1).
			The maximum output impedance is 250 ohm.
	39	BLACK PEAK	For the correct working of the black stretcher an external time constant should
		HOLD CAPACITOR	be added at the black peak hold capacitor input.
	40	HOR OUTPUT	This open collector output is meant to drive the horizontal output stage.
			The output is active low, i.e. the line transistor should conduct during the low
			period of the output.
	41	SANDCASTLE	Pin 41 is a combined input/output pin.
		OUTPUT/	The pin provides a three level sandcastle pulse.
		FLYBACK INPUT	Both burstkey pulse and vertical blanking pulse are always available, the line
			blanking pulse is only present when the external flyback pulse is fed to this pin.
			The line flyback pulse, fed to this pin is used for two functions:
			- input signal for the PHI-2 1oop and
			- RGB line blanking. (without flyback pulse blanking occurs only during the
			burstkey pulse)
			To ensure correct working of the delay line and SECAM add-on, the output
			should not be loaded with more than:
			- Sandcastle input delay line TDA 4665
			- Sandcastle input SECAM add-on TDA 8395
	42	PHI-2 FILTER /	The loopfilter is a first order filter.
		FLASH PROTECT	This pin requires a capacitor (C) only.

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