STV2247H 查看數據表（PDF） - STMicroelectronics

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STV2247H

I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR

STMicroelectronics 

STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS

4.9.3 First Loop Filter

Symbol

ILOW

IHIGH

IVLOW

Parameter

Long Time Constant Output Current

Short Time Constant Output Current

Very Long Time Constant

Test Conditions

Min. Typ. Max. Unit

0.10 0.13 0.16 mA

0.30 0.40 0.56 mA

0.03 0.05 0.07 mA

4.9.4 Second Loop Filter

Symbol

CrangeP2

HSHIFT

HDRIFT

Parameter

Control Range from start of horizon-

tal output to flyback pulse

Horizontal Position Control Range

Horizontal Drift with temperature

Test Conditions

Centered horizontal position

From 0°C to 70°C (see Note 9)

Min. Typ. Max. Unit

0 to

12

µs

5 5.25

µs

200 ns

Note 9: This parameter is not tested during production, it is tested during the qualification phase.

4.9.5 Line Flyback Input/Super-Sandcastle Output

Symbol

VBURST

VLINE

VVERT

Twbg

Tdbg

Tvert

VTHLINE

I

Parameter

Test Conditions

Output Voltage during Burst Key

Clamped Input Voltage during Line

Flyback

Output Voltage during Vertical pulse

Burst key Pulse Width

Delay of start of burst key to start of

sync.

Vertical Pulse Width

PLL2 and Line Blanking Threshold

Voltage referred to line level Vline

Vthline/Vline

Input Current

4.9.6 Horizontal Output

Symbol

tW

VLOW

VCCSTART

VCCSTOP

IMax.

VMax.

Tss

Parameter

Test Conditions

Output Pulse Width

Low Output Voltage

VCC Start Level

VCC Stop Level Hysteresis

Maximum allowed Output Current

ISINK = 5mA

VCCSTART - VCCSTOP

Maximum allowed Output Voltage

Output Pulse Duty Cycle in soft-start

mode (tHIGH/(tHIGH+tLOW)

4.9.7 Vertical Output

Symbol

tW

VLOW

fLOCK

fFREE-50

fFREE-60

Parameter

Output Pulse Width

Low Output Voltage

Looking Range

Free Frequency (no Video signal)

Free Frequency (no Video signal)

Test Conditions

Reg 19, d0 = 1

Reg 19, d0 = 0

50-Hz Forced or 50-Hz Auto mode

60-Hz Forced or 60-Hz Auto mode

Min. Typ. Max. Unit

4.8 5.3 5.8 V

2.6 3 3.4 V

1.8 2 2.2 V

3.8

µs

5.2

µs

10.5

lines

83

%

0.1

1 mA

Min. Typ. Max. Unit

26 28 30 µs

0.4 V

5.5 6 6.5 V

0.5 0.6 0.7 V

10 mA

10

V

75

%

Min.

1.5

248

Typ.

10.5

2

0.1

314

264

Max.

2.5

0.5

352

Unit

Lines

V

Lines

Lines

Lines

37/86

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