Rainbow-electronics MAX7470 Manual do Utilizador descarregar pdf (Página 5)

MAX7469/MAX7470

HDTV Continuously Variable

Anti-Aliasing Filters

_______________________________________________________________________________________

SDA

SCL

HD;STA

HD;DAT

HIGH

SU;DAT

SU;STA

HD;STA

SU;STO

S SP

LOW

Figure 1. 2-Wire, Serial-Interface Timing Diagram

(AV

= +5V, DV

= 3.3V, R

LOAD

= 150Ω to GND, C

LOAD

= 0 to 20pF to GND, C

= 0.1µF, T

= +25°C, unless otherwise noted.)

Typical Operating Characteristics

-80

-60

-70

-30

-40

-50

-10

-20

0.1 101 100 1000

FREQUENCY RESPONSE (MAX7469)

MAX7469 toc01

FREQUENCY (MHz)

RESPONSE (dB)

CODE 40

CODE 90

CODE 220

CODE 255

-1.5

-2.0

-2.5

-3.0

-1.0

-0.5

0.5

1.0

0.1 101100

PASSBAND FLATNESS (MAX7469)

MAX7469 toc02

FREQUENCY (MHz)

RESPONSE (dB)

CODE 40

CODE 255

CODE 220

CODE 90

-40

-50

-60

-70

-30

-10

-20

0.1 101 100 1000

FREQUENCY RESPONSE (MAX7470)

MAX7469 toc03

FREQUENCY (MHz)

RESPONSE (dB)

CODE 40

CODE 90

CODE 220

CODE 255

4.5

4.0

3.5

3.0

5.0

6.0

5.5

6.5

7.0

0.1 101 100

PASSBAND FLATNESS (MAX7470)

MAX7469 toc04

FREQUENCY (MHz)

RESPONSE (dB)

CODE 40

CODE 255

CODE 220

CODE 90

0.1 1 10 100

GROUP DELAY

MAX7469 toc05

FREQUENCY (MHz)

DELAY (ns)

200ns/div

2T RESPONSE (1 IRE = 7.14mV)

300mV/div

MAX7469 toc06

300mV/div

1 2 3 4 5 6 7 8 9 10 ... 16 17

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