AN5693 View Datasheet(PDF) - Panasonic Corporation

Part Name

Description

Manufacturer

AN5693

Luminance,Chroma and Sync. Signals Processing IC(with Built-in I2C bus Interface)for PAL/NTSC Color-TV

Panasonic Corporation 

AN5693K

ICs for TV

s Pin Equivalent Circuit(Continued)

Pin No.

Equivalent Circuit

42

(VCC2)

22 kΩ

Function

Horizontal Oscillator Pin :

• Oscillates by 32 × fH = 500 kHz

ceramic resonator

• Horizontal and vertical pulses are made

by the IC internal count down circuit

Status

AC

f = 32 fH

(about

500 kHz)

42

300 Ω

100 µA 200 µA

N750

220 pF

10 kΩ 10 kΩ

80 µA

Temperature characteristics

present for N750

43

40 kΩ

4.3 V 20 kΩ 20 kΩ

(VCC2)

3V

Over Voltage Protection Input Pin :

• Input pin is used by X-ray protector

circuit for over voltage

• By internal logic circuit, when H out

DC

usually

0V

pulse is low, shut down starts

To

43

count down (Prevent damaging the horizontal drive

20 kΩ

transistor)

44

4.3 V

19 kΩ

(VCC2)

Horizontal Pulse Output Pin :

• Duty is about 37 %

AC

(Pulse)

50 Ω

44

10 kΩ

3.5 V

0V

40 kΩ Hor. out

45

+5V(µ-com VCC)

33 kΩ

45

To µ-com

Vertical Frequency Detection Output Pin :

DC

5V

• The output of the result of the internal 0 V

(VCC3)

counter of the vertical synchronous

or

100 kΩ

signal period

5V

• fV = 60 Hz : V45 is "H"

= 50 Hz : V45 is "L"

24

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