DDS39RF12ACK datasheet(22/177 Pages) TI2

22 / 177 page

6.6 Electrical Characteristics - AC Specifications (continued)

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

voltages, FCLK = 12 GHz, DDS Mode, IFS_SWITCH = 20.5 mA, single tone amplitude = 0 dBFS, SE DEM and Dither (DEM_ADJ

= 1 below 750 MHz and DEM_ADJ = 0 above 750 MHz), unless otherwise noted. FDAC = FCLK in NRZ and RF modes and

FDAC = 2*FCLK in DES2XL/H modes.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

NSD

Noise spectral density, large signal,

sinusoidal output, IFS_SWITCH = 41

mA(3)

fOUT = 97 MHz, 70-MHz offset from

fOUT

-157

dBc/Hz

fOUT = 997 MHz, 70-MHz offset from

fOUT

-156

dBc/Hz

fOUT = 1997 MHz, 70-MHz offset from

fOUT

-153

dBc/Hz

fOUT = 2997 MHz, 70-MHz offset from

fOUT

-151

dBc/Hz

fOUT = 3997 MHz, 70-MHz offset from

fOUT

-150

dBc/Hz

fOUT = 5997 MHz, 70-MHz offset from

fOUT

-148

dBc/Hz

fOUT = 6997 MHz, 70-MHz offset from

fOUT

-147

dBc/Hz

fOUT = 7997 MHz, 70-MHz offset from

fOUT

-146

dBc/Hz

fOUT = 8997 MHz, 70-MHz offset from

fOUT

-144

dBc/Hz

fOUT = 10997 MHz, 70-MHz offset

from fOUT

-140

dBc/Hz

NSD

Noise spectral density, small signal,

sinusoidal output, IFS_SWITCH = 20.5

mA(3)

AOUT = -20 dBFS, fOUT = 97 MHz,

70-MHz offset from fOUT

-155

dBFS/Hz

AOUT = -20 dBFS, fOUT = 997 MHz,

70-MHz offset from fOUT

-157

dBFS/Hz

AOUT = -20 dBFS, fOUT = 1997 MHz,

70-MHz offset from fOUT

-155

dBFS/Hz

AOUT = -20 dBFS, fOUT = 2997 MHz,

70-MHz offset from fOUT

-153

dBFS/Hz

AOUT = -20 dBFS, fOUT = 3997 MHz,

70-MHz offset from fOUT

-153

dBFS/Hz

AOUT = -20 dBFS, fOUT = 5997 MHz,

70-MHz offset from fOUT

-151

dBFS/Hz

AOUT = -20 dBFS, fOUT = 6997 MHz,

70-MHz offset from fOUT

-150

dBFS/Hz

AOUT = -20 dBFS, fOUT = 7997 MHz,

70-MHz offset from fOUT

-150

dBFS/Hz

AOUT = -20 dBFS, fOUT = 8997 MHz,

70-MHz offset from fOUT

-149

dBFS/Hz

AOUT = -20 dBFS, fOUT = 10997 MHz,

70-MHz offset from fOUT

-146

dBFS/Hz

DDS39RF12, DDS39RFS12

SBASB21 – SEPTEMBER 2024

www.ti.com

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