參數(shù)資料
型號(hào)： DAC650
廠商： Texas Instruments, Inc.
英文描述： 12-Bit 500MHz Dightal-To-Analog Converter(12位 500M赫茲單片D/A轉(zhuǎn)換器)
中文描述： 12位500MHz的Dightal到模擬轉(zhuǎn)換器（12位500米赫茲單片的D / A轉(zhuǎn)換器）
文件頁(yè)數(shù)： 11/11頁(yè)
文件大?。?/td> 142K
代理商： DAC650
DAC650
11
Free Dynamic Range will generally be much better due to
the harmonics falling outside the passband. Even with a
bandpass filter, updating the DAC at greater than 4 times per
cycle will (1) minimize the 2nd and 3rd harmonic magni-
tudes by having the output slew excessively between any
successive clock and (2) will keep the (f
CLK
– 2f
O
) spur and
other even order spurs from folding back close to the
fundamental under the condition f
OUT
= 1/3f
CLK
and (3) will
keep the (f
CLK
– 3f
O
) spur and other spurs from folding back
close to the fundamental under the condition f
OUT
= 1/4f
CLK
.
Making use of the high update rate of the DAC650 helps to
lessen the problems of harmonics “folding back” into the
passband.
EVALUATION BOARD
The high frequency signals used in operating the DAC650
can cause difficult layout problems. It is especially difficult
to build a high-performance prototype board using the
DAC650. It is recommended that an evaluation fixture be
used for prototyping. An evaluation fixture includes a
DAC650 soldered to the PC board. Both grades are available
for the evaluation fixture.
MODEL
DESCRIPTION
DEM-DAC650J-E
DEM-DAC650K-E
DEM-DAC650 PDS
Evaluation Board with DAC650JL Attached
Evaluation Board with DAC650KL Attached
Data Sheet for DAC650 Evaluation Board
ORDERING INFORMATION
FIGURE 8. Typical DAC650 Connection Diagram.
–5.2V
+15V
V
BBIN
B
1
(MSB)
B
2
B
3
B
4
B
5
B
6
B
7
B
8
B
9
B
10
B
11
B
12
–V
EE
–V
EE
CLK
CLK
DNC
–V
EE
–V
EE
–V
EE
–V
EE
–V
EE
–V
EE
–V
EE
–V
EE
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
V
BBINT
V
BBEXT
ECL HI
IN
ECL LO
IN
–V
EE
PWRGND
+15V
REF
IN
REF
OUT
REF
ADJ
REF
GND
VOS
ADJ
+5V
+5V
PWRGND
–15V
–15V
AGND
AGND
AGND
AGND
V
OUT
V
OUT
V
OUT
AGND
AGND
AGND
V
OUT
V
OUT
V
OUT
AGND
AGND
AGND
AGND
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
–5.2V
C
0.01μF
C
10μF
+
C
4
10μF
C
0.01μF
–15V
+
C
3
10μF
7
0.C
+5V
C
1
10μF
C
0.01μF
+
C
2
10μF
C
0.01μF
+
CLK
CLK
C
0.01μF
C
0.01μF
–5.2V
B
1
B
2
B
3
B
4
B
5
B
6
B
7
B
8
B
9
B
10
B
11
B
12
DAC650
DAC Out
DAC Out
(50
Optional)
NOTE: Clock and data inputs must be
terminated at source and/or package pin.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DAC650 WAF 制造商:Texas Instruments 功能描述:
DAC650JL 制造商:BB 制造商全稱:BB 功能描述:12-Bit 500MHz DIGITAL-TO-ANALOG CONVERTER
DAC650JL-4 制造商:Rochester Electronics LLC 功能描述:- Bulk
DAC650JL-5 制造商:Rochester Electronics LLC 功能描述:- Bulk
DAC650KL 制造商:BB 制造商全稱:BB 功能描述:12-Bit 500MHz DIGITAL-TO-ANALOG CONVERTER
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