COMPRO X800 - START UP GUIDE Especificaciones descargar pdf (Pagina 5)

_______________________________________________________________________________________ 5

MAX9249

Gigabit Multimedia Serial Link

Serializer with LVDS System Interface

AC ELECTRICAL CHARACTERISTICS (continued)

DVDD

= V

AVDD

= 1.7V to 1.9V, V

IOVDD

= 1.7V to 3.6V, R

= 100I ±1% (differential), T

= -40NC to +105NC, unless otherwise

noted. Differential input voltage |V

| = 0.15V to 1.2V, input common-mode voltage V

= |V

/2| to 2.4V - |V

/2|. Typical values are

at V

DVDD

= V

AVDD

= V

IOVDD

= 1.8V, V

LVDSVDD

= 3.3V, T

= +25NC.)

Note 2: Minimum I

due to voltage drop across the internal pullup resistor.

Note 3: Not production tested.

Note 4:

IOVDD

RXCLKIN_ RXCLKIN_

Bit time (BWS 0), (BWS V )

30 f 40 f

= = = =

××

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Serializer Delay (Note 4) t

Figure 9

Spread spectrum enabled 2950

Bits

Spread spectrum disabled 390

Link Start Time t

LOCK

Figure 10 3.5 ms

Power-Up Time t

Figure 11 3.5 ms

S INPUT TIMING

WS Frequency f

Table 3 8 192 kHz

Sample Word Length n

Table 3 4 32 Bits

SCK Frequency f

SCK

= f

x n

x 2

(8 x 4)

x 2

(192 x 32)

x 2

kHz

SCK Clock High Time (Note 3) t

SCK R

, t

SCK

= 1/f

SCK

0.35 x

SCK

SCK Clock Low Time (Note 3) t

SCK

≤ V

, t

SCK

= 1/f

SCK

0.35 x

SCK

SD/CNTL0, WS Setup Time t

SET

Figure 12 (Note 3) 2 ns

SD/CNTL0, WS Hold Time t

HOLD

Figure 12 (Note 3) 2 ns

1 2 3 4 5 6 7 8 9 10 ... 35 36

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