DAC39RFS10 datasheet(13/178 Pages) TI

13 / 178 page

7.6 Electrical Characteristics - AC Specifications

Typical values at TA = +25°C, minimum and maximum values over operating free-air temperature range, typical supply

voltages, fCLK = 10.24GHz, FINPUT = 2.56 GSPS, JMODE 1, 8b/10b encoding, 4x Interpolation, IFS_SWITCH = 20.5mA, single

tone amplitude = 0 dBFS, SE DEM and Dither (DEM_ADJ = 1 below 750 MHz and DEM_ADJ = 0 above 750MHz), 8b/10b

encoding, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

MODE INDEPENDENT PARAMETERS

FCLK

DAC clock rate

0.8

10.24

GHz

Analog output bandwidth (–3 dB)

Excluding sinx/x response. Useable

bandwidth may exceed the –3 dB

point.

GHz

Crosstalk

Isolation between channel A

(DACOUTA+/–) and channel B

(DACOUTB+/-), fOUT = -25 MHz

offset on victim channel

fOUT = 97 MHz, NRZ mode

dBc

fOUT = 1897 MHz, NRZ mode

dBc

fOUT = 3897 MHz, NRZ mode

dBc

fOUT = 5897 MHz, RF mode

dBc

fOUT = 7897 MHz, RF mode

dBc

DAC OUTPUT TIME DOMAIN CHARACTERISTICS

tRISE

10% to 90%(1)

JMODE 0, 1x Interpolation

tFALL

90% to 10%(1)

JMODE 0, 1x Interpolation

tSETTLE

10% to 90%, setting time to

0.1%FS(1)

JMODE 0, 1x Interpolation

1.8

Glitch Impulse, constant code

0x7FFF

JMODE 0, 1x Interpolation, DEM off,

Dither off

fV*s

JMODE 0, 1x Interpolation, SE DEM,

SE Dither

100

Glitch Impulse, 0x7FFF to 0x8000((2))

JMODE 0, 1x Interpolation, DEM off,

Dither off

JMODE 0, 1x Interpolation, SE DEM,

SE Dither

100

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DAC39RF10

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