DAC39RF10 datasheet(23/232 Pages) TI2

23 / 232 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 = 10.24GHz, 8b/10b encoding, IFS_SWITCH = 20.5mA, single tone amplitude = 0dBFS, SE DEM and Dither

(DEM_ADJ = 1 below 750MHz and DEM_ADJ = 0 above 750MHz), 8b/10b encoding, unless otherwise noted. FDAC = FCLK in

NRZ, RTZ and RF modes and FDAC = 2×FCLK in DES1X and DES2XL/H modes.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

NSD

Noise spectral density, small signal,

sinusoidal output(3)

AOUT = -20dBFS, fOUT = 5997MHz,

70MHz offset from fOUT

–148

dBFS/Hz

AOUT = -20dBFS, fOUT = 6997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

AOUT = -20dBFS, fOUT = 7997MHz,

70MHz offset from fOUT, IFS_SWITCH =

41mA

–152

dBFS/Hz

AOUT = -20dBFS, fOUT = 7997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

AOUT = -20dBFS, fOUT = 8997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

NPR

Noise power ratio, peak

Signal spanning 80% of 2nd Nyquist

zone, notch at center of Nyquist

zone of 5% of Nyquist zone, 12dB

PAR, IFS_SWITCH = 20.5mA

42.7

dBc

Signal spanning 80% of 2nd Nyquist

zone, notch at center of Nyquist

zone of 5% of Nyquist zone, 12dB

PAR, IFS_SWITCH = 41mA

dBc

ENOB

Effective number of bits

Calculated from peak NPR

8.7

bits

Calculated from peak NPR

9.1

bits

FLATNESS

Flatness of Nyquist zone

Maximum output power to minimum

output power, measured from 10% to

90% of 2nd Nyquist zone, including

sinx/x response with balun

2.4

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DAC39RF10-SP, DAC39RF10-SEP

DAC39RFS10-SP, DAC39RFS10-SEP

SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026

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