LVA519 [MITSUMI]

Sync Separator with AFC Monolithic IC; 同步分离器与亚足联单片IC


型号：	LVA519
厂家：	MITSUMI ELECTRONICS, CORP.
描述：	Sync Separator with AFC Monolithic IC 同步分离器与亚足联单片IC
文件：	总8页 (文件大小：169K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Sync Separator with AFC LVA519

MITSUMI

Sync Separator with AFC

Monolithic IC LVA519

Outline

This is a sync separator IC with AFC. Stable operation even in a weak electric field is made possible with the

built-in AFC circuit. A regulator also is built in, providing stable operation relative to power supply and

temperature fluctuations.

Features

1. Supports AFC (horizontal sync signal)

2. AFC OFF function

3. Horizontal and vertical sync signal output pins

4. Power supply voltage

4.7V~5.3V

Package

SIP-9A (LVA519S)

SOP-14A (LVA519F)

Applications

1. TV

2. VCR

3. Other video equipment

Equivalent Circuit Diagram

SIP-9A

SOP-14A

Sync Separator with AFC LVA519

MITSUMI

(LVA519S)

Pin Description

Pin no.

Pin name

Function

Internal equivalent circuit diagram

VIDEO IN

Video signal input

VCO

Free run frequency setting

PC OUT

Phase comparison output

CFU

Integrates composite

signal and inputs to

vertical sync playback

circuit

Sync Separator with AFC LVA519

MITSUMI

GND

COSC

Free run frequency

oscillation circuit

VSYNC

HSYNC

Vertical sync signal output

Horizontal sync signal

output

VCC

Power supply

(LVA519F)

Pin Description

Pin no.

Pin name

Function

Internal equivalent circuit diagram

VIDEO IN

Video signal input

VCO

Free run frequency setting

Sync Separator with AFC LVA519

MITSUMI

PC OUT

Phase comparison output

CFU

Integrates composite

signal and inputs to

vertical sync playback

circuit

GND

COSC

Free run frequency

oscillation circuit

VSYNC

HSYNC

VCC

Vertical sync signal output

Horizontal sync signal

output

Power supply

Sync Separator with AFC LVA519

MITSUMI

(Ta=25°C)

Absolute Maximum Ratings

Item

Symbol

Ratings

40~+125

Units

Storage temperature

Operating temperature

Power supply voltage

T^STG

T^OPR

°C

-2~+75

V^CCmax.

470 (SIP-9A)

Allowable loss

350 (SOP-14A)

(Ta=25°C)

Recommended Operating Conditions

Item

Symbol

Min.

Typ.

Max.

Units

Recommended power supply

voltage range

V^CC

4.7

5.0

5.3

Recommended input

signal voltage

V^IN

0.8

2.0

3.2

VP-P

P-P

(Except where noted otherwise, Ta=25°C, V =5.0V, V =2.0V

)

Electrical Characteristics

Item

Symbol

Measurement conditions

Refer to Measuring Circuit

Min. Typ. Max. Units

Consumption current

7.0

5.0

0.2

5.0

0.2

0.4

Horizontal sync output (H)

Horizontal sync output (L)

Vertical sync output (H)

Vertical sync output (L)

Free-running frequency setting range

Power supply fluctuation of

free-running frequency

Free-running frequency temperature

coefficient Capture range

Capture range

V^HH

V^HL

V^VH

V^VL

4.9

f^O

14.5

17.0 kHz

f^O1

f^O2

Refer to Measuring Circuit

300

400

%/V

ppm/V

f^C

f^L

Refer to Measuring Circuit

1.0

1.9

0.3

3.5

1.9

1.1

1.3

2.5

0.7

5.0

2.1

1.3

kHz

Lock range

AFC output delay time

AFC output pulse width

1.1

6.5

2.3

1.5

µS

P^W

Schmitt trigger

threshold

(H)

(L)

Vth^H

Vth^L

V^SEPA

R^AFC

Sync separation level

AFC off resistance

115 170 mV

4.0 6.0 kΩ

2.7

Sync Separator with AFC LVA519

MITSUMI

(Except where noted otherwise, Ta=25°C, VCC=5.0V, VIN=2.0VP P)

Measuring Procedures

Switch state

Item

Symbol

Measuring Procedures

S1 S2 S3 S4 S5

Consumption current

Horizontal sync (H)

Connect a DC ammeter to VCC pin.

VHH

Input standard color bar 2V^P

Measure at TP5

output

Vertical sync

output

(L) VHL

(H)

(L) VVL

VVH

Input standard color bar 2V^P

Measure at TP4.

Free-running frequency

setting range

f^O

Adjust VR1 and measure frequency at TP5.

Power supply fluctuation of

free-running frequency

Free-running frequency

temperature coefficient

Capture range

With fo at 15.73kHz, vary Vcc between 4.0V~6.0V

and measure at TP5.

fO1

With fo at 15.73kHz, vary temperature between

fO2

-20°C and 80°C and measure at TP5.

B/A

Input standard color bar 2V

-P

and measure at TP1 and TP5.

and measure at TP2 and TP5.

Lock range

f^L

AFC output delay time

td A/B

AFC output pulse width Pw A/B

Input standard color bar 2V

P-

and measure at TP5.

Schmitt trigger

threshold

(H) VtHH

(L) VtHL

Measure at TP3 and TP4.

P-P

(Except where noted otherwise, Ta=25°C, V =5.0V, V =2.0V

)

Measuring Procedures

Switch state

Item

Symbol

Measuring Procedures

Raise horizontal sync signal level of input standard

color bar 2VP P and measure the level when a signal

Sync separation

level

V^SEPA

is output at TP5.

With Fo at 15.73kHz, vary Iafc, and determine

according to Iafc value when TP5 output signal

switches to a composite signal, and TP6 voltage V6.

R^AFC=V6/IA1

AFC switching

resistance

R^AFC

Notes:

1 Capture range (fc)

Vary VR1 between max min and min max with SW1, and for each

lock make SW1 A and measure at TP5.

15.73KHz

Data : f^C1 and fC2 smaller value

fc1

Lock range (fL)

15.73KHz

fc2

fL2

With SW1 at B and locked, vary VR1 and when the lock is released,

make SW1 A and measure at TP5.

fL1

Data : f^L1 and fL2 smaller value

Sync Separator with AFC LVA519

MITSUMI

AFC output delay time (td)

Set SW1 at A and adjust TP5 output to 15.73kHz. Then set SW1 to B

and measure td from TP2 and TP5 waveforms. (specified at 50% of

sync signal amplitude)

TP2

100

AFC output pulse width (Pw)

TP5

Set SW1 at A and adjust TP5 output to 15.73kHz. Then set SW1 to B

and measure Pw from TP5 waveform. (specified at 50% of sync

signal amplitude)

TP4

Schmidt trigger threshold

(Vth^H) (VthL)

Measure Vth^Hand VthL at TP3 and TP4.

V^thH

VthL

TP3

Measuring Circuit

SIP-9A

SOP-14A

Sync Separator with AFC LVA519

MITSUMI

Application Circuits

SIP-9A

SOP-14A

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