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参数资料
| 型号： | DC245A-A |
| 厂商： | Linear Technology |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTC1668 |
| 设计资源： | DC245A Design File DC245A Schematic |
| 标准包装： | 1 |
| DAC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 50M |
| 数据接口： | 并联 |
| 设置时间： | 20ns |
| DAC 型： | 电流 |
| 工作温度： | 0°C ~ 70°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTC1668 |
| 相关产品： | LTC1668CG#PBF-ND - IC DAC 16BIT 50MSPS 28-SSOP LTC1668IG#PBF-ND - IC D/A CONV 16BIT 50MSPS 28-SSOP LTC1668CG#TRPBF-ND - IC D/A CONV 16BIT 50MSPS 28-SSOP LTC1668IG#TRPBF-ND - IC D/A CONV 16BIT 50MSPS 28-SSOP LTC1668IG-ND - IC DAC 16BIT 50MSPS 28SSOP LTC1668IG#TR-ND - IC DAC 16BIT 50MSPS 28SSOP LTC1668CG#TR-ND - IC DAC 16BIT 50MSPS 28SSOP LTC1668CG-ND - IC D/A CONV 16BIT 50MSPS 28-SSOP |
5
LTC1666/LTC1667/LTC1668
FREQUENCY (MHz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
SIGNAL
AMPLITUDE
(dBFS)
1666/7/8 G01
05
10
15
20
25
SFDR = 87dB
fCLOCK = 50MSPS
fOUT = 1.002MHz
AMPL = 0dBFS
= –8.25dBm
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Single Tone SFDR at 50MSPS
2-Tone SFDR
FREQUENCY (MHz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
SIGNAL
AMPLITUDE
(dBFS)
1666/7/8 G02
4.5
5.0
5.5
SFDR > 86dB
fCLOCK = 50MSPS
fOUT1 = 4.9MHz
fOUT2 = 5.09MHz
AMPL = 0dBFS
4-Tone SFDR, fCLOCK = 50MSPS
4-Tone SFDR, fCLOCK = 5MSPS
SFDR vs fOUT and Digital Amplitude
(dBFS) at fCLOCK = 5MSPS
SFDR vs fOUT and fCLOCK
FREQUENCY (MHz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
SIGNAL
AMPLITUDE
(dBFS)
1666/7/8 G03
1
4.6
8.2
11.8
15.4
19
SFDR > 74dB
fCLOCK = 50MSPS
fOUT1 = 5.02MHz
fOUT2 = 6.51MHz
fOUT3 = 11.02MHz
fOUT4 = 12.51MHz
AMPL = 0dBFS
FREQUENCY (MHz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
SIGNAL
AMPLITUDE
(dBFS)
1666/7/8 G04
0.1
0.46
0.82
1.18
1.54
1.9
SFDR > 82dB
fCLOCK = 5MSPS
fOUT1 = 0.5MHz
fOUT2 = 0.65MHz
fOUT3 = 1.10MHz
fOUT4 = 1.25MHz
AMPL = 0dBFS
fOUT (MHz)
0.1
SFDR
(dB)
100
90
80
70
60
50
1.0
10
100
1666/7/8 G05
5MSPS
25MSPS
50MSPS
DIGITAL AMPLITUDE = 0dBFS
fOUT (MHz)
100
95
90
85
80
75
70
65
60
55
50
SFDR
(dB)
1666/7/8 G06
0
0.4
0.8
1.2
1.6
2.0
–12dBFS
–6dBFS
0dBFS
(LTC1668)
fOUT (MHz)
0
SFDR
(dB)
4
8
10
95
90
85
80
75
70
65
60
55
50
1666/7/8 G07
26
–12dBFS
–6dBFS
0dBFS
fOUT (MHz)
0
SFDR
(dB)
10
20
90
85
80
75
70
65
60
55
50
1666/7/8 G08
515
–12dBFS
–6dBFS
0dBFS
fOUT (MHz)
0
SFDR
(dB)
10
95
90
85
80
75
70
65
60
55
50
1666/7/8 G09
2.5
5
7.5
DIGITAL AMPLITUDE = 0dBFS
IOUTFS = 2.5mA
IOUTFS = 5mA
IOUTFS = 10mA
SFDR vs fOUT and Digital Amplitude
(dBFS) at fCLOCK = 25MSPS
SFDR vs fOUT and Digital Amplitude
(dBFS) at fCLOCK = 50MSPS
SFDR vs fOUT and IOUTFS at
fCLOCK = 25MSPS
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