M52390 查看數據表（PDF） - Mitsumi

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M52390

NTSC/PAL ENCODER

Mitsumi 

APPLICATION EXAMPLE (1)

Encoding RGB video signal to NTSC/PAL signal RGB video signal input

RGB VIDEO SIGNAL INPUT

R

0.71VP-P

G

B

COMPOSITE

Sync.

2.5V

Recommended Y DL (360ns):

Toko Co., Ltd. TH317LSOS-3287

+

1k

MITSUBISHI ICs (AV COMMON)

M52390FP

NTSC/PAL ENCODER

VCC=5V

+

20 19 18 17 16 15 14 13 12 11

FILTER CONT

COLOR CONT

R-Y

BURST

R-Y ADD

RIN GIN

CLAMP

MATRIX

R-Y

MOD

BIN

Sync.

ADD

2.1V

Vreg

Y

Y/C

MIX

VCC

NTSC/

PAL

SUPER-

IMPOSE

SW

B-Y B-Y

BURST

ADD

B-Y

MOD

MIX BPF

APC

6dB

AMP

GND

1

MMV

R-Y CLAMP

2

3

4

VCXO

B-Y CLAMP

Xtal

CLAMP

VIDEO

IN

5

6

7

8

9

VIDEO

OUT

10

(Note)

Drive at low impedance

because the RGB video signal

is clamped by IC input. Set the

amplitude of the RGB signal

(emitter follower, etc.) to

0.71VP-P (at color saturation).

GND

NTSC/PAL VIDEO OUTPUT

Unit Resistance : Ω

Capacitance : F

Example of Xtal:Nippon denpa industry Co., Ltd. AT-51

(NTSC = 3.579545MHz)

(PAL = 4.433619MHz)

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