Rainbow-electronics MAX1209 Manual do Utilizador descarregar pdf (Página 6)

MAX1209

12-Bit, 80Msps, 3.3V IF-Sampling ADC

6 _______________________________________________________________________________________

Note 1: Specifications ≥+25°C guaranteed by production test, <+25°C guaranteed by design and characterization.

Note 2: See definitions in the Parameter Definitions section.

Note 3: During power-down, D11–D0, DOR, and DAV are high impedance.

Note 4: Guaranteed by design and characterization.

Note 5: Digital outputs settle to V

or V

Note 6: Due to test equipment jitter limitations at 175MHz, 0.15% of the spectrum on each side of the fundamental is excluded from

the spectral analysis.

ELECTRICAL CHARACTERISTICS (continued)

= 3.3V, OV

= 2.0V, GND = 0, REFIN = REFOUT (internal reference), V

= -0.5dBFS, CLKTYP = high, DCE = high, PD = low,

G/T = low, f

CLK

= 80MHz (50% duty cycle), T

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

= +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Normal operating mode,

= 175MHz at -0.5dBFS, CLKTYP = GND,

single-ended clock

366

Normal operating mode,

= 175MHz at -0.5dBFS,

CLKTYP = OV

, differential clock

393 436

Analog Power Dissipation P

DISS

Power-down mode clock idle, PD = OV

0.003

Normal operating mode,

= 175MHz at -0.5dBFS, OV

= 2.0V,

≈ 5pF

9.2 mA

Digital Output Supply Current I

OVDD

Power-down mode clock idle, PD = OV

0.9 µA

TIMING CHARACTERISTICS (Figure 6)

Clock Pulse Width High t

6.25 ns

Clock Pulse Width Low t

6.25 ns

Data-Valid Delay t

DAV

= 5pF (Note 5) 6.4 ns

Data Setup Time Before Rising

Edge of DAV

SETUP

= 5pF (Notes 4, 5) 7.7 ns

Data Hold Time After Rising Edge

of DAV

HOLD

= 5pF (Notes 4, 5) 4.2 ns

Wake-Up Time from Power-Down t

WAKE

REFIN

= 2.048V 10 ms

1 2 3 4 5 6 7 8 9 10 11 ... 26 27

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