ELECTRICAL OPERATING CHARACTERISTICS (continued)

Symbol

Parameter

Min.

Typ.

Max.

Unit

7.2

µA

– 2.8

µA

VCO (Pins 17-18 and 19)

Frequency control range after line divider (ceramic resonator : 503kHz)

15.30 to

16.10

kHz

PHASE COMPARATOR

ϕ 1 (Pin 22)

Output Current Low Loop Gain

± 0.35

± 0.50

± 0.65

mA

Output Current High Loop Gain

± 1

± 1.5

± 2mA

Window Pulse Width

7

10

13

µs

VCR SWITCHING (Pin 23)

Threshold Voltage VCR Operating

1.7

2.2

2.7

V

-0.030

-0.25

-1

mA

VIDEO IDENTIFICATION (Pin 24)

0.2

0.6

V

5

6.5

7.5

V

µA)

11.0

11.5

V

VIDEO IDENTIFICATION (Pin 25)

Output Current (charging the capacitor)

0.5

0.75

1

mA

Identification Time (charging the capacitor)

1.3

1.7

2.2

µs

Threshold (voltage changing from lower to higher value)

4

4.5

5

V

Hysteresis

350

mV

H-RAMP GENERATOR (Pin 13)

Charge Current

185

200

215

µA

Base Voltage of Saw-tooth

0.5

V

Discharge Current

3.5

7.0

mA

SUPER SANDCASTLE (Pin 11)

9

V

4

4.5

5

V

Frame Blanking Pulse Level Output Voltage (and frame out of function)

2

2.5

3

V

SUPER SANDCASTLE

Delay between middle of synch pulse (Pin 27) and leading edge of burst

key pulse

2.3

3.0

µs

Duration of burst key pulse

3.7

4

5

Delay Between SSC Cutting Level at Pin 12 and Line Blanking Pulse

0.35

Frame Blanking Time (start with reset of frame divider)

21

Line

POSITIVE LINE FLY BACK INPUT (Pin 12)

Delay between middle of synch pulse and middle of line retrace

2.1

2.6

3.1

µs

Threshold for SMPS Safety

1.1

V

Threshold for Blanking

0.3

V

Threshold for PLL2

3

V

-20

µA

ϕ12

-10

µA

01

µA

TEA2028B

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