CXD1217 Просмотр технического описания (PDF) - Sony Semiconductor

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CXD1217

Synchronizing Signal Generator for Video Camera

Sony Semiconductor 

CXD1217Q

Application Circuit

Basic connection in individual systems

Basic connection in individual systems at internal synchronization mode (EXT input = "0") is as follows. See

waveform diagram for each output.

• NTSC

14.318MHz ( = 910fH)

VDD

17

23

24

OSC CLOUT CLIN

28

12

VDD

VSS

1/4

OLALT

Synthesizer

HRI

21

VRI

29

4fscIN

8

4fscOUT

7

15 26 6 10 2

4 31 13 3 30

∗ H/2 is output for LALT OUT even in NTSC mode.

∗ MODE1, MODE2, EXT, TEST and LALTRI pins can be kept open.

(If noise annoys, connect to Vss by low impedance.)

• PAL

OSC

14.187MHz ( = 908fH)

L. P. F VCO

VDD

10k 10k

17

4fsc 1/4

IN

8

22

HCOMOUT

24

23

CLIN CLOUT

Phase

Comparison

7

4fsc

OUT

17.734MHz

(4fsc)

S. C.

Reset

Clock

Elimination

1/7

1/2

1/8

1/625

f'H fH

1/81

Field

12

28 19

20

VSS

VDD MODE1 MODE2

Synthesizer

HRI

21

VRI 29

15 26 6 10 2 4 31 13 3 30

∗ Inverter of CLIN or CLOUT pins are usable as VCO.

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for

any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.

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