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10

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28

LUMA FILTER (see Note 1)

XTAL

x 4fsc

2.2

µF

TO MICRO

CVBS IN

(se e note 4)

CSYNC

(IN or OUT)

Ext. 4 fsc

OSC IN

(see Note 2)

+5V

+5V

(see Note 3)

TRANSLUCENT MODE

CHROMA BP FILTER

(see Note 1)

CHROMA TRAP

R1

CVBS OUT

S

T

V

5

7

3

0

68

Ω

+5V

+5V

+5V

+5V

EXTERNAL

RGB

TEXT

INSERTION

(SCART)

+5V

10

µH

Digital Ground

Analog Ground

68

Ω

68

Ω

68

Ω

+5V

68

Ω

Notes : 1. Optional filter. For low cost applications, short circuit.

2. The 4fsc (17.734MHz PAL, 14.318MHz NTSC) crystal may be ommited if this signal is already available in a system.

3. External bias level can be set by resistor ratio as required. The level at pins LECHAR and LESCREEN must not exceed 3.0 Vdc.

4. Output impedance of the driving stage should be less than 300

Ω.

TYPICAL PAL/NTSC/SECAM APPLICATION

STV5730

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