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参数资料
| 型号： | DAC5688IRGCTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 0.0104 us SETTLING TIME, 16-BIT DAC, PQCC64 |
| 封装： | 9 X 9 MM, GREEN, PLASTIC, VQFN-64 |
| 文件页数： | 32/56页 |
| 文件大小： | 1321K |
| 代理商： | DAC5688IRGCTG4 |
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CLKO _ CLK 1
LOCK _ CLK 1 C
diffclk_ena
EN
clk1c_in_ena
EN
1
0
clk1_in_ena
InternalCLK 1
InternalLOCK
InternalCLKO
EN
clko_SE_hold
GND
IOVDD
GND
IOVDD
GND
IOVDD
CLKO _ CLK 1
LOCK _ CLK 1 C
10KW
Note:Inputcommonmodelevelis
approximately0.5*IOVDDor1.65V.
10KW
SLLS880C – DECEMBER 2007 – REVISED AUGUST 2010
www.ti.com
CLKO_CLK1 and LOCK_CLK1C Pins
Figure 41 shows the functionality of the CLKO_CLK1 and LOCK_CLK1C pins. Refer to Table 5. The controls for
these pins are found in the CONFIG2 register and are used in selection of device clocking mode. In single-ended
mode (CONFIG2 diffclk_ena = ‘0’) refer to Figure 43, both CLKO_CLK1 and LOCK_CLK1C pins have an
internal pull-down resistor approximately equivalent to 100k
.
Figure 41. CLKO_CLK1 and LOCK_CLK1C pins bi-directional control
In differential mode (CONFIG2 diffclk_ena = ‘1’) the CLKO_CLK1 and LOCK_CLK1C input pins are configured
as a differential CLK1/C clock input. Refer Figure 39 for the equivalent circuit.
Figure 42. CLKO_CLK1 and LOCK_CLK1C Differential Input Mode Equivalent Circuit
38
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): DAC5688
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