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參數(shù)資料
| 型號： | 5962-0720401VXC |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 0.012 us SETTLING TIME, 14-BIT DAC, CQFP52 |
| 封裝： | CERAMIC, QFP-52 |
| 文件頁數(shù)： | 8/23頁 |
| 文件大?。?/td> | 579K |
| 代理商： | 5962-0720401VXC |
Internal
Clock
CLKC
AGND
AV
DD
CLK
R1
1k
R1
1k
R2
2k
R2
2k
DAC5675A
CLK
CLKC
Optional, may be
bypassedforsine-
waveinput
R
T
200
Swing Limitation
Termination
Resistor
1:4
CAC
0.1 F
DAC5675A
CLK
CLKC
Single-Ended
ECL
or
(LV)PECL
Source
ECL/PECL
Gate
C
AC
R
T
50
R
T
50
V
TT
CAC
0.01 F
DAC5675A
SGLS387D – JULY 2007 – REVISED OCTOBER 2009 ..................................................................................................................................................... www.ti.com
Figure 17. Clock Equivalent Input
Figure 18. Driving the DAC5675A With a Single-Ended Clock Source Using a Transformer
To obtain best ac performance, the DAC5675A clock input should be driven with a differential LVPECL or
sine-wave source as shown in Figure 19 and Figure 20. Here, the potential of VTT should be set to the
termination voltage required by the driver along with the proper termination resistors (RT). The DAC5675A clock
input can also be driven single ended; this is shown in Figure 21.
Figure 19. Driving the DAC5675A With a Single-Ended ECL/PECL Clock Source
16
Copyright 2007–2009, Texas Instruments Incorporated
Product Folder Link(s): DAC5675A-SP
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