DAC39RF10 datasheet(36/232 Pages) TI2

36 / 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 = 97MHz,

70MHz offset from fOUT

–159

dBFS/Hz

AOUT = -20dBFS, fOUT = 997MHz,

70MHz offset from fOUT

–156

dBFS/Hz

AOUT = -20dBFS, fOUT = 1997MHz,

70MHz offset from fOUT

–154

dBFS/Hz

AOUT = -20dBFS, fOUT = 2997MHz,

70MHz offset from fOUT

–152

dBFS/Hz

AOUT = -20dBFS, fOUT = 3997MHz,

70MHz offset from fOUT

–151

dBFS/Hz

AOUT = -20dBFS, fOUT = 5997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

AOUT = -20dBFS, fOUT = 6997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

AOUT = -20dBFS, fOUT = 7997MHz,

70MHz offset from fOUT

–149

dBFS/Hz

AOUT = -20dBFS, fOUT = 8997MHz,

70MHz offset from fOUT

–150

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

37.4

dBc

ENOB

Effective number of bits

Calculated from peak NPR

8.0

bits

(1)

Measured single ended into 50Ω load

(2)

A 100Ω load is equivalent to a 2:1 with 50Ω single ended load

(3)

NSD can be improved by disabling DEM and DITHER (see Typical Characteristics Plots for Noise Spectral Density).

(4)

MIN SFDR defined as minimum of HD2-HD5.

DAC39RF10-SP, DAC39RF10-SEP

DAC39RFS10-SP, DAC39RFS10-SEP

SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026

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Product Folder Links: DAC39RF10-SP DAC39RF10-SEP DAC39RFS10-SP DAC39RFS10-SEP

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