Datasheet

Data Sheet AD9780/AD9781/AD9783
Rev. B | Page 5 of 32
AC SPECIFICATIONS
T
MIN
to T
MAX
, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, I
OUTFS
= 20 mA, maximum sample rate, unless
otherwise noted.
Table 3.
Parameter
AD9780 AD9781 AD9783
Unit Min Typ Max Min Typ Max Min Typ Max
SPURIOUS FREE DYNAMIC RANGE (SFDR)
f
DAC
= 500 MSPS, f
OUT
= 20 MHz 79 78 80 dBc
f
DAC
= 500 MSPS, f
OUT
= 120 MHz 67 66 68 dBc
f
DAC
= 500 MSPS, f
OUT
= 380 MHz (Mix Mode) 55 58 62 dBc
f
DAC
= 500 MSPS, f
OUT
= 480 MHz (Mix Mode) 58 62 59 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)
f
DAC
= 500 MSPS, f
OUT
= 20 MHz 91 93 86 dBc
f
DAC
= 500 MSPS, f
OUT
= 120 MHz 80 75 79 dBc
f
DAC
= 500 MSPS, f
OUT
= 380 MHz (Mix Mode)
69
70
64
dBc
f
DAC
= 500 MSPS, f
OUT
= 480 MHz (Mix Mode) 60.5 61.5 66 dBc
ONE-TONE NOISE SPECTRAL DENSITY (NSD)
f
DAC
= 500 MSPS, f
OUT
= 40 MHz −157 −162 −165 dBc
f
DAC
= 500 MSPS, f
OUT
= 120 MHz −154.5 −156.5 −157 dBc
f
DAC
= 500 MSPS, f
OUT
= 380 MHz (Mix Mode) −153 −153 −154 dBc
f
DAC
= 500 MSPS, f
OUT
= 480 MHz (Mix Mode) −152 −152 −153 dBc
W-CDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR),
SINGLE CARRIER
f
DAC
= 491.52 MSPS, f
OUT
= 20 MHz −81 −82.5 −82 dBc
f
DAC
= 491.52 MSPS, f
OUT
= 80 MHz
−80
−82.5
−81
dBc
f
DAC
= 491.52 MSPS, f
OUT
= 411.52 MHz
−71
−68
−69
dBc
f
DAC
= 491.52 MSPS, f
OUT
= 471.52 MHz −69 −69 −70 dBc