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參數(shù)資料
| 型號： | PI6C991-2J |
| 英文描述： | Parallel 16-Bit Rail-to-Rail Micropower DAC; Package: PDIP; No of Pins: 28; Temperature Range: 0°C to +70°C |
| 中文描述： | 八分布式輸出時(shí)鐘驅(qū)動器 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大小： | 655K |
| 代理商： | PI6C991-2J |
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PS8448A 10/10/00
PI6C991
5V High Speed Programmable Skew
Clock Buffer -
SuperClock
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Pin Definitions
Block Diagram Description
Phase Frequency Detector and Filter
These two blocks accept input signals from the reference frequency
(REF) input and the feedback (FB) input and generate correction
information to control the frequency of the Voltage-Controlled
Oscillator (VCO). These blocks, along with the VCO, form a Phase-
Locked Loop (PLL) that tracks the incoming REF signal.
VCO and Time Unit Generator
The VCO accepts analog control inputs from the PLL filter block
and generates a frequency that is used by the time unit generator to
create discrete time units that are selected in the skew mix matrix.
The operational range of the VCO is determined by the FS control
pin. The time unit (t
U
) is determined by the operating frequency of
the device and the level of the FS pin as shown in Table 1.
Skew Select Matrix
The skew select matrix is comprised of four independent sections.
Each section has two low-skew, high-fanout drivers (xQ0, xQ1),
and two corresponding three-level function select (xF0, xF1)
inputs. Table 2 shows the nine possible output functions for each
section as determined by the function select inputs. All times are
measured with respect to the REF input assuming that the output
connected to the FB input has 0t
U
selected.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PI6C991-5 | Parallel 16-Bit Rail-to-Rail Micropower DAC; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C |
| PI6C991-5I | Clock IC | 500ps Accuracy. 5V. TTL. 3.75 to 80 MHz. Industrial Temp. Operation |
| PI6C991-5IJ | Parallel 16-Bit Rail-to-Rail Micropower DAC; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C |
| PI6C991-5J | Eight Distributed-Output Clock Driver |
| PI6C991-5JI | Parallel 16-Bit Rail-to-Rail Micropower DAC; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI6C991-5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Clock IC | 500ps Accuracy. 5V. TTL. 3.75 to 80 MHz |
| PI6C991-5I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Clock IC | 500ps Accuracy. 5V. TTL. 3.75 to 80 MHz. Industrial Temp. Operation |
| PI6C991-5IJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Eight Distributed-Output Clock Driver |
| PI6C991-5J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Eight Distributed-Output Clock Driver |
| PI6C991-5JI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Eight Distributed-Output Clock Driver |
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