Rainbow-electronics MAX9218 Manuel d'utilisateur télécharger pdf (Page 4)

MAX9218

27-Bit, 3MHz-to-35MHz

DC-Balanced LVDS Deserializer

4 _______________________________________________________________________________________

Note 1: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground

except V

and V

Note 2: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production

tested at T

= +25°C.

Note 3: All LVTTL/LVCMOS inputs, except PWRDWN at ≤ 0.3V or ≥ V

- 0.3V. PWRDWN is ≤ 0.3V.

Note 4: AC parameters are guaranteed by design and characterization, and are not production tested. Limits are set at ±6 sigma.

Note 5: C

includes probe and test jig capacitance.

AC ELECTRICAL CHARACTERISTICS

CC_

= +3.0V to 3.6V, C

= 8pF, PWRDWN = high, differential input voltage ⏐V

⏐ = 0.1V to 1.2V, input common-mode voltage

= ⏐V

/2⏐ to V

- ⏐V

/2⏐, T

= -40°C to +85°C, unless otherwise noted. Typical values are at V

CC_

= +3.3V, ⏐V

⏐ = 0.2V, V

1.2V, T

= +25°C.) (Notes 4, 5)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REFCLK TIMING REQUIREMENTS

Period t

28.57 333.00 ns

Frequency f

CLK

3 35 MHz

Frequency Variation ∆f

CLK

REFCLK to serializer PCLK_IN -2.0 +2.0 %

Duty Cycle DC 40 50 60 %

Transition Time t

TRAN

20% to 80% 6 ns

SWITCHING CHARACTERISTICS

RNG1, RNG0 = high 3.2 4.4

Output Rise Time

Figure 3

RNG1, RNG0 both not high

simultaneously

3.8 5.5

RNG1, RNG0 = high 2.7 4.5

Output Fall Time t

Figure 3

RNG1, RNG0 both not high

simultaneously

3.6 5.3

PCLK_OUT High Time t

HIGH

Figure 4

0.4 x

0.45 x

0.6 x

PCLK_OUT Low Time t

LOW

Figure 4

0.4 x

0.45 x

0.6 x

Data Valid Before PCLK_OUT t

DVB

Figure 5 0.35 x t

0.4 x t

Data Valid After PCLK_OUT t

DVA

Figure 5 0.35 x t

0.4 x t

Input-to-Output Delay t

DELAY

Figure 6

2.575 x

8.5

2.725 x

12.8

PLL Lock to REFCLK t

PLLREF

Figure 7

16385 x

Power-Down Delay t

PDD

Figure 7 100 ns

Output Enable Time t

Figure 8 30 ns

Output Disable Time t

Figure 9 30 ns

1 2 3 4 5 6 7 8 9 ... 15 16

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Rainbow-electronics MAX9218 Manuel d'utilisateur Page 4

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