DAC39RF10 datasheet(29/232 Pages) TI2

29 / 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, IFS_SWITCH =

41mA(3)

AOUT = -20dBFS, fOUT = 97MHz,

70MHz offset from fOUT

–161

dBFS/Hz

AOUT = -20dBFS, fOUT = 997MHz,

70MHz offset from fOUT

–158

dBFS/Hz

AOUT = -20dBFS, fOUT = 1997MHz,

70MHz offset from fOUT

–156

dBFS/Hz

AOUT = -20dBFS, fOUT = 2997MHz,

70MHz offset from fOUT

–154

dBFS/Hz

AOUT = -20dBFS, fOUT = 3997MHz,

70MHz offset from fOUT

–153

dBFS/Hz

AOUT = -20dBFS, fOUT = 5997MHz,

70MHz offset from fOUT

–151

dBFS/Hz

AOUT = -20dBFS, fOUT = 6997MHz,

70MHz offset from fOUT

–152

dBFS/Hz

AOUT = -20dBFS, fOUT = 7997MHz,

70MHz offset from fOUT

–152

dBFS/Hz

AOUT = -20dBFS, fOUT = 8997MHz,

70MHz offset from fOUT

–151

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, DES2XL (1st

Nyquist)

dBc

Signal spanning 80% of 2nd Nyquist

zone, notch at center of Nyquist zone

of 5% of Nyquist zone, 12dB PAR,

IFS_SWITCH = 41mA, DES2XL (1st

Nyquist)

dBc

Signal spanning 80% of 2nd Nyquist

zone, notch at center of Nyquist zone

of 5% of Nyquist zone, 12dB PAR,

IFS_SWITCH = 20.5mA, DES2XH (2nd

Nyquist)

dBc

Signal spanning 80% of 2nd Nyquist

zone, notch at center of Nyquist zone

of 5% of Nyquist zone, 12dB PAR,

IFS_SWITCH = 41mA, DES2XH (2nd

Nyquist)

dBc

ENOB

Effective number of bits

Calculated from peak NPR,

IFS_SWITCH = 20.5mA, DES2XL (1st

Nyquist)

9.6

bits

Calculated from peak NPR,

IFS_SWITCH = 41mA, DES2XL (1st

Nyquist)

9.8

bits

Calculated from peak NPR,

IFS_SWITCH = 20.5mA, DES2XH (2nd

Nyquist)

8.9

bits

Calculated from peak NPR,

IFS_SWITCH = 41mA, DES2XH (2nd

Nyquist)

9.2

bits

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DAC39RF10-SP, DAC39RF10-SEP

DAC39RFS10-SP, DAC39RFS10-SEP

SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026

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