參數資料
型號: AD9778BSVZ
廠商: Analog Devices Inc
文件頁數: 54/56頁
文件大?。?/td> 0K
描述: IC DAC 14BIT DUAL 1GSPS 100TQFP
產品培訓模塊: DAC Architectures
標準包裝: 1
位數: 14
數據接口: 并聯(lián)
轉換器數目: 2
電壓電源: 模擬和數字
功率耗散(最大): 300mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-TQFP 裸露焊盤
供應商設備封裝: 100-TQFP-EP(14x14)
包裝: 托盤
輸出數目和類型: 4 電流,單極;4 電流,雙極
采樣率(每秒): 1G
AD9776/AD9778/AD9779
Rev. A | Page 7 of 56
DIGITAL INPUT DATA TIMING SPECIFICATIONS
Table 3. AD9776, AD9778, and AD9779 Digital Input Data Timing Specifications
Parameter
Min
Typ
Max
Unit
INPUT DATA (ALL MODES, 40°C to +85°C)1
Set-Up Time, Input Data to DATACLK
+2.5
ns
Hold Time, Input Data to DATACLK
0.4
ns
Set-Up Time, Input Data to REFCLK
0.8
ns
Hold Time, Input Data to REFCLK
+2.9
ns
1 Timing vs. temperature and data valid keep out windows are delineated in Table 19.
AC SPECIFICATIONS
TMIN to TMAX, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V,
= 20 mA, maximum sample rate, unless
otherwise noted.
S
OUTF
I
Table 4. AD9776, AD9778, and AD9779 AC Specifications
AD9776
AD9778
AD9779
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
SPURIOUS FREE DYNAMIC RANGE (SFDR)
fDAC = 100 MSPS, fOUT = 20 MHz
82
dBc
fDAC = 200 MSPS, fOUT = 50 MHz
81
82
dBc
fDAC = 400 MSPS, fOUT = 70 MHz
80
dBc
fDAC = 800 MSPS, fOUT = 70 MHz
85
87
dBc
TWO-TONE INTERMODULATION DISTORTION
(IMD)
fDAC = 200 MSPS, fOUT = 50 MHz
87
91
dBc
fDAC = 400 MSPS, fOUT = 60 MHz
80
85
dBc
fDAC = 400 MSPS, fOUT = 80 MHz
75
81
dBc
fDAC = 800 MSPS, fOUT = 100 MHz
75
80
81
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
WCDMA ADJACENT CHANNEL LEAKAGE
RATIO (ACLR), SINGLE CARRIER
fDAC = 491.52 MSPS, fOUT = 100 MHz
76
78
79
dBc
fDAC = 491.52 MSPS, fOUT = 200 MHz
69
73
74
dBc
WCDMA SECOND ADJACENT CHANNEL
LEAKAGE RATIO (ACLR), SINGLE CARRIER
fDAC = 491.52 MSPS, fOUT = 100 MHz
77.5
80
81
dBc
fDAC = 491.52 MSPS, fOUT = 200 MHz
76
78
dBc
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