STV2118B datasheet(13/25 Pages) STMICROELECTRONICS

13 / 25 page

ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25

oC, unless otherwise specified) (continued)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

CHROMA PLL (Pins 2-3)

CR2-3

Catching Range

Q = 4.43MHz (Pin 3)

Q = 3.58MHz (Pin 2)

±600

±500

PLL LOOP FILTER (Pin 4)

IC4

Control Current

During burst gate window

400

µA

IL4

Leakage Current

µA

HUE CONTROL (in NTSC mode only)

CRHUE

HUE Control Range

±25

±45

Deg

COLOR DIFFERENCE OUTPUT SIGNALS (Pins 40-41)

PAL /NTSC DEMODULATORS

VP40

R-Y Output signal Amplitude (Pin 40)

|RED-BLUE| axes = 90

100/75 colour bar

0.40

0.52

0.60

VPP

VP41

B-Y Output Signal Amplitude (Pin 41)

|RED-BLUE| axes = 90

100/75 colour bar

0.50

0.66

0.80

VPP

GPAL

Gain Ratio of both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes = 90

100/75 colour bar

1.15

1.27

1.45

GNTSC

Gain Ratio of both Demodulators (B-Y)/(R-Y) |RED-BLUE| axes = 104

100/75 colour bar

1.0

1.23

1.45

VPNDC

Output Voltage when colour killed

5.6

5.8

6.0

SECAM DEMODULATORS

VS40

R-Y Output Signal Amplitude (Pin 40)

100/75 Colour Bar

0.8

1.05

1.20

VPP

VS41

B-Y Output Signal Amplitude (Pin 41)

100/75 Colour Bar

1.00

1.33

1.40

VPP

GSECAM

Gain Ratio of both Demodulators (B-Y)/(R-Y)

1.00

1.27

1.35

VSDC

Output Voltage when colour killed

5.4

5.6

5.8

PAL /SECAM /NTSC (90

o) MATRIX

G/R

(G-Y)/(R-Y)

-0.6

-0.51

-0.4

G/B

(G-Y)/(B-Y)

-0.28

-0.19

-0.15

NTSC (104

o) MATRIX

NG/R

(G-Y)/(R-Y)

-0.29

NG/B

(G-Y)/(B-Y)

-0.22

SATURATION CONTROL

SATMax.

Maximum Saturation Control (3F)

1VPP CVBS on Pin 20

+6.5

SATNom.

Nominal Saturation Control (20)

1VPP CVBS on Pin 20

SATMin.

Minimum Saturation Control(00)

1VPP CVBS on Pin 20

-44

COLOUR DIFFERENCE INPUT SIGNALS (Pins 38-39)

DCRYI

DC Voltage Pin 39

No colour

2.6

2.8

3.0

DCBYI

DC Voltage Pin 38

No colour

2.6

2.8

3.0

VRYI

Input Signal Amplitude Pin 39

100/75 color bar

1.05

VPP

VBYI

Input Signal Amplitude Pin 38

100/75 color bar

1.33

VPP

ICL38-39

Clamping Current

During burst key

150

µA

SYNC. SEPARATOR

VSync

Sync. Pulse Amplitude

On Pin 20

300

HORIZONTAL OSCILLATOR

fH50

Frequency after Divider

50Hz input signal

15625

fH60

Frequency after Divider

60Hz input signal

15750

fRang

Frequency Control Range

Low Frequency

High Frequency

14500

16100

14850

16300

15200

16500

ffree

Free Running Frequency when PLL1 open

Value 03hex

in register 0Ehex

15000

15800

STV2118B

13/25

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