AD9779A-EBZ datasheet(8/56 Pages) AD

8 / 56 page

AD9776A/AD9778A/AD9779A

Rev. B | Page 8 of 56

AC SPECIFICATIONS

TMIN to TMAX, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, IOUTFs = 20 mA, maximum sample rate, unless

otherwise noted.

Table 4.

AD9776A

AD9778A

AD9779A

Parameter

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Unit

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fDAC = 100 MSPS, fOUT = 20 MHz

dBc

fDAC = 200 MSPS, fOUT = 50 MHz

dBc

fDAC = 400 MSPS, fOUT = 70 MHz

dBc

fDAC = 800 MSPS, fOUT = 70 MHz

dBc

TWO-TONE INTERMODULATION DISTORTION (IMD)

fDAC = 200 MSPS, fOUT = 50 MHz

dBc

fDAC = 400 MSPS, fOUT = 60 MHz

dBc

fDAC = 400 MSPS, fOUT = 80 MHz

dBc

fDAC = 800 MSPS, fOUT = 100 MHz

dBc

NOISE SPECTRAL DENSITY (NSD), EIGHT-TONE, 500 kHz

TONE SPACING

fDAC = 200 MSPS, fOUT = 80 MHz

−152

−155

−158

dBm/Hz

fDAC = 400 MSPS, fOUT = 80 MHz

−155

−159

−160

dBm/Hz

fDAC = 800 MSPS, fOUT = 80 MHz

−157.5

−160

−161

dBm/Hz

W-CDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR),

SINGLE CARRIER

fDAC = 491.52 MSPS, fOUT = 100 MHz

dBc

fDAC = 491.52 MSPS, fOUT = 200 MHz

dBc

W-CDMA SECOND ADJACENT CHANNEL LEAKAGE RATIO

(ACLR), SINGLE CARRIER

fDAC = 491.52 MSPS, fOUT = 100 MHz

77.5

dBc

fDAC = 491.52 MSPS, fOUT = 200 MHz

dBc

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