Data Sheet
AD9780/AD9781/AD9783
Rev. B | Page 5 of 32
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 3.
Parameter
AD9780
AD9781
AD9783
Unit
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
SPURIOUS FREE DYNAMIC RANGE (SFDR)
fDAC = 500 MSPS, fOUT = 20 MHz
79
78
80
dBc
fDAC = 500 MSPS, fOUT = 120 MHz
67
66
68
dBc
fDAC = 500 MSPS, fOUT = 380 MHz (Mix Mode)
55
58
62
dBc
fDAC = 500 MSPS, fOUT = 480 MHz (Mix Mode)
58
62
59
dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)
fDAC = 500 MSPS, fOUT = 20 MHz
91
93
86
dBc
fDAC = 500 MSPS, fOUT = 120 MHz
80
75
79
dBc
fDAC = 500 MSPS, fOUT = 380 MHz (Mix Mode)
69
70
64
dBc
fDAC = 500 MSPS, fOUT = 480 MHz (Mix Mode)
60.5
61.5
66
dBc
ONE-TONE NOISE SPECTRAL DENSITY (NSD)
fDAC = 500 MSPS, fOUT = 40 MHz
157
162
165
dBc
fDAC = 500 MSPS, fOUT = 120 MHz
154.5
156.5
157
dBc
fDAC = 500 MSPS, fOUT = 380 MHz (Mix Mode)
153
154
dBc
fDAC = 500 MSPS, fOUT = 480 MHz (Mix Mode)
152
153
dBc
W-CDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR),
SINGLE CARRIER
fDAC = 491.52 MSPS, fOUT = 20 MHz
81
82.5
82
dBc
fDAC = 491.52 MSPS, fOUT = 80 MHz
80
82.5
81
dBc
fDAC = 491.52 MSPS, fOUT = 411.52 MHz
71
68
69
dBc
fDAC = 491.52 MSPS, fOUT = 471.52 MHz
69
70
dBc