STV2247H(2009) 查看數據表（PDF） - STMicroelectronics

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STV2247H
(Rev.:2009)

I²C bus-controlled multistandard single chip TV processor

STMicroelectronics 

STV224X, STV228X, STV223X - 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

Parameter

Test Conditions

Min. Typ. Max. Unit

CrangeP2

Control Range from start of horizon-

tal output to flyback pulse

Centered horizontal position

0 to

12

µs

HSHIFT Horizontal Position Control Range

5 5.25

µs

HDRIFT Horizontal Drift with temperature

From 0°C to 70°C (see Note 9)

200 ns

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

t(s) 4.9.5 Line Flyback Input/Super-Sandcastle Output

Symbol

uc VBURST

d VLINE

ro VVERT

P Twbg

te Tdbg

le Tvert

o VTHLINE

s I

Parameter

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

Input Current

Test Conditions

Vthline/Vline

Ob 4.9.6 Horizontal Output

- Symbol

) tW

t(s VLOW

VCCSTART

c VCCSTOP

u IMax.

d VMax.

ro Tss

Parameter

Output Pulse Width

Low Output Voltage

VCC Start Level

VCC Stop Level Hysteresis

Maximum allowed Output Current

Maximum allowed Output Voltage

Output Pulse Duty Cycle in soft-start

mode (tHIGH/(tHIGH+tLOW)

Test Conditions

ISINK = 5mA

VCCSTART - VCCSTOP

P 4.9.7 Vertical Output

te Symbol

letW

bso VLOW

Parameter

Output Pulse Width

Low Output Voltage

Test Conditions

Reg 19, d0 = 1

Reg 19, d0 = 0

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

Typ.

10.5

2

0.1

Max.

2.5

0.5

Unit

Lines

V

fLOCK Looking Range

248

352 Lines

fFREE-50 Free Frequency (no Video signal) 50-Hz Forced or 50-Hz Auto mode

314

Lines

fFREE-60 Free Frequency (no Video signal) 60-Hz Forced or 60-Hz Auto mode

264

Lines

37/86

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