MC44145 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

MC44145

Pixel Clock Generator/Sync Separator

Motorola => Freescale 

1.0 µF

Video In

1.0 kΩ

MC44145

Figure 2.

Sync

Separator

Sync C

Sync B

C

R

H Sync Out

Amp

V Sync Out

C = 180 pF, R = 120 kΩ

Figure 3. Typical VCO Transfer Characteristics

60

50

40

30

20

10

Pin 8 = Low

0

1.0

2.0

3.0

4.0

PIN 14 VOLTAGE (V)

Figure 4. Sync Separator Timing

Video Input

(Pin 12)

0.2 µs

3.4 V

Sync C Out

(Pin 5)

0V

1.0 µs

≈ 5.0 µs

Composite Sync

Input (Pin 12)

D1 = 9.5 µs

Vertical Sync

Out (Pin 10)

D2 = 9.5 µs

4.4 V

0.05 V

Note: D1 and D2 depend on the value of R and C connected to Pin 3. They are specified here for the values: R = 120 kΩ, and C = 180 pF.

6

MOTOROLA ANALOG IC DEVICE DATA

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