Rainbow-electronics MAX7473 Manual do Utilizador descarregar pdf (Página 6)

MAX7472/MAX7473

HDTV Anti-Aliasing Filters with Triple-Input Mux

6 _______________________________________________________________________________________

-40

-10

-15

-20

-25

-30

-35

-5

0.1 101 100 1000

BYPASS-MODE FREQUENCY RESPONSE

MAX7472/73 toc10

FREQUENCY (MHz)

RESPONSE (dB)

MAX7473

MAX7472

0.1 101100

BYPASS-MODE GROUP DELAY

MAX7472/73 toc11

FREQUENCY (MHz)

DELAY (ns)

Typical Operating Characteristics (continued)

(AV

= +5V, DV

= 3.3V, R

LOAD

= 150Ω to GND, C

= 0.1µF, T

= +25°C.)

Pin Description

PIN NAME FUNCTION

1 INC1 Channel C Input 1. AC-couple INC1 with a series 0.1µF capacitor.

2, 6, 25, 26 AGND

Analog Ground. Connect all AGND pins to the ground plane. See the Power-Supply Bypassing and

Layout Considerations section.

3 INA2 Channel A Input 2. AC-couple INA2 with a series 0.1µF capacitor.

4 INB2 Channel B Input 2. AC-couple INB2 with a series 0.1µF capacitor.

5 INC2 Channel C Input 2. AC-couple INC2 with a series 0.1µF capacitor.

7 INA3 Channel A Input 3. AC-couple INA3 with a series 0.1µF capacitor.

8 INB3 Channel B Input 3. AC-couple INB3 with a series 0.1µF capacitor.

9 INC3 Channel C Input 3. AC-couple INC3 with a series 0.1µF capacitor.

10 DGND Digital Ground. See the Power-Supply Bypassing and Layout Considerations section.

11 SYNCA Channel A External Sync Input. Connect to ground if not used.

12 SYNCB Channel B External Sync Input. Connect to ground if not used.

13 SYNCC Channel C External Sync Input. Connect to ground if not used.

14 SCL I

C-Compatible Serial Clock Input

15 SDA I

C-Compatible Serial Data Input/Output

16 DV

Digital Power Supply. Bypass to DGND with a 0.1µF capacitor. See the Power-Supply Bypassing and

Layout Considerations section.

17 OUT3 Video Output 3. OUT3 can be either AC- or DC-coupled.

18, 20, 22 AV

Analog Power Supply. Bypass each AV

input to AGND using a 0.1µF capacitor. See the Power-

Supply Bypassing and Layout Considerations section.

1 2 3 4 5 6 7 8 9 10 11 ... 18 19

MAX7472/MAX7473 1

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