參數(shù)資料
型號： AD9775BSV
廠商： ANALOG DEVICES INC
元件分類： DAC
英文描述： 14-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter
中文描述： PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PQFP80
封裝： PLASTIC, MO-026-ADD-HD, TQFP-80
文件頁數(shù)： 4/48頁
文件大?。?/td> 6054K
代理商： AD9775BSV
REV. 0
–4–
AD9775
DYNAMIC SPECIFICATIONS
(T
MIN
to T
MAX
, AVDD = 3.3 V, CLKVDD = 3.3 V, DVDD = 3.3 V, PLLVDD = 0 V, I
OUTFS
= 20 mA,
Interpolation = 2 , Differential Transformer Coupled Output, 50 Doubly Terminated,
unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
Maximum DAC Output Update Rate (f
DAC
)
Output Settling Time (t
ST
) (to 0.025%)
Output Rise Time (10% to 90%)
*
Output Fall Time (10% to 90%)
*
Output Noise (I
OUTFS
= 20 mA)
AC LINEARITY—–BASEBAND MODE
Spurious-Free Dynamic Range (SFDR) to Nyquist (f
OUT
= 0 dBFS)
f
DATA
= 100 MSPS, f
OUT
= 1 MHz
f
DATA
= 65 MSPS, f
OUT
= 1 MHz
f
DATA
= 65 MSPS, f
OUT
= 15 MHz
f
DATA
= 78 MSPS, f
OUT
= 1 MHz
f
DATA
= 78 MSPS, f
OUT
= 15 MHz
f
DATA
= 160 MSPS, f
OUT
= 1 MHz
f
DATA
= 160 MSPS, f
OUT
= 15 MHz
Spurious-Free Dynamic Range within a 1 MHz Window
(f
OUT
= 0 dBFS, f
DATA
= 100 MSPS, f
OUT
= 1 MHz)
Two-Tone Intermodulation (IMD) to Nyquist (f
OUT1
= f
OUT2
= –6 dBFS)
f
DATA
= 65 MSPS, f
OUT1
= 10 MHz; f
OUT2
= 11 MHz
f
DATA
= 65 MSPS, f
OUT1
= 20 MHz; f
OUT2
= 21 MHz
f
DATA
= 78 MSPS, f
OUT1
= 10 MHz; f
OUT2
= 11 MHz
f
DATA
= 78 MSPS, f
OUT1
= 20 MHz; f
OUT2
= 21 MHz
f
DATA
= 160 MSPS, f
OUT1
= 10 MHz; f
OUT2
= 11 MHz
f
DATA
= 160 MSPS, f
OUT1
= 20 MHz; f
OUT2
= 21 MHz
Total Harmonic Distortion (THD)
f
DATA
= 100 MSPS, f
OUT
= 1 MHz; 0 dBFS
Signal-to-Noise Ratio (SNR)
f
DATA
= 78 MSPS, f
OUT
= 5 MHz; 0 dBFS
f
DATA
= 160 MSPS, f
OUT
= 5 MHz; 0 dBFS
Adjacent Channel Power Ratio (ACLR)
WCDMA with 3.84 MHz BW, 5 MHz Channel Spacing
IF = Baseband, f
DATA
= 76.8 MSPS
IF = 19.2 MHz, f
DATA
= 76.8 MSPS
Four-Tone Intermodulation
21 MHz, 22 MHz, 23 MHz, and 24 MHz at –12 dBFS
(f
DATA
= MSPS, Missing Center)
AC LINEARITY—IF MODE
Four-Tone Intermodulation at IF = 200 MHz
MHz, MHz, MHz, and MHz at dBFS
(f
DATA
= MSPS, f
DAC
= MHz)
400
MSPS
ns
ns
ns
pA
√
Hz
11
0.8
0.8
50
71
84.5
84
80
84
80
82
80
dBc
dBc
dBc
dBc
dBc
dBc
dBc
73
91.3
dBc
81
76
81
76
81
76
dBc
dBc
dBc
dBc
dBc
dBc
–71
–82.5
dB
76
74
dB
dB
75
73
dBc
dBc
75
dBFS
72
dBFS
*
Measured single-ended into 50
load.
Specifications subject to change without notice.
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