参数资料
型号: AD9779BSVZRL
厂商: Analog Devices Inc
文件页数: 15/56页
文件大小: 0K
描述: IC DAC 16BIT DUAL 1GSPS 100TQFP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1,000
位数: 16
数据接口: 串行
转换器数目: 2
电压电源: 模拟和数字
功率耗散(最大): 300mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-TQFP 裸露焊盘
供应商设备封装: 100-TQFP-EP(14x14)
包装: 带卷 (TR)
输出数目和类型: 4 电流,单极
采样率(每秒): 1G
AD9776/AD9778/AD9779
Rev. A | Page 22 of 56
0.4
0
4096
CODE
INL
(12-BIT
LSB)
–0.4
512
1024
2560
2048
1536
3072
3584
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
05361-041
Figure 44. AD9776 Typical INL
0.20
0
4096
CODE
DNL
(1
2
-BIT
LS
B)
2048
–0.20
512
1024
1536
2560
3072
3584
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
05361-042
Figure 45. AD9776 Typical DNL
100
50
0
400
fOUT (MHz)
IMD
(dBc
)
40
80
120
160
200
240
280
320
360
4
× 200MSPS
4
× 100MSPS
4
× 150MSPS
95
90
85
80
75
70
65
60
55
05361-043
Figure 46. AD9776 IMD, 4× Interpolation
100
50
0
100
fOUT (MHz)
S
F
DR
(dBc
)
90
80
70
60
20
40
60
80
fDATA = 250MSPS
fDATA = 200MSPS
fDATA = 160MSPS
05361-044
Figure 47. AD9776 In-Band SFDR, 2× Interpolation
–90
0
250
FOUT (MHz)
ACLR
(dBc
)
–55
25
50
75
100
125
150
175
200
225
1ST ADJ CHAN
2ND ADJ CHAN
3RD ADJ CHAN
–60
–65
–70
–75
–80
–85
05361-045
Figure 48. AD9776 ACLR, fDATA = 122.88 MSPS, 4× Interpolation,
fDAC/4 Modulation
SPAN 50MHz
SWEEP 162.2ms (601 pts)
VBW 300kHz
CENTER 143.88MHz
*RES BW 30kHz
RMS RESULTS
CARRIER POWER
–12.67dBm/
3.84000MHz
FREQ OFFSET
5.000MHz
10.00MHz
15.00MHz
REF BW
3.884MHz
3.840MHz
dBc
–75.00
–78.05
–77.73
dBm
–87.67
–90.73
–90.41
LOWER
dBc
–75.30
–77.99
–77.50
dBm
–87.97
–90.66
–90.17
UPPER
REF –25.29dBm
*AVG
Log
10dB/
PAVG
10
W1 S2
*ATTEN 4dB
05361-046
Figure 49. AD9776, Single Carrier WCDMA, 4× Interpolation,
fDATA = 122.88 MSPS, Amplitude = 3 dBFS
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