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參數(shù)資料
| 型號： | MC88915FN55PLCC |
| 廠商： | Motorola, Inc. |
| 英文描述： | Low Skew CMOS PLL Clock Driver |
| 中文描述： | 低偏移的CMOS PLL時鐘驅(qū)動器 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 216K |
| 代理商： | MC88915FN55PLCC |
MC88915TFN55/70/100/133/160
TIMING SOLUTIONS
BR1333 — Rev 6
13
MOTOROLA
2.25ns OFFSET
With the 1M
resistor tied in this fashion, the tPD specification
measured at the input pins is:
330
R2
330
R2
FEEDBACK OUTPUT
SYNC INPUT
FEEDBACK OUTPUT
SYNC INPUT
5.0V
3.0V
5.0V
ANALOG VCC
1M
REFERENCE
RESISTOR
ANALOG GND
RC1
0.1
μ
F
C1
With the 1M
resistor tied in this fashion, the tPD specification
measured at the input pins is:
EXTERNAL LOOP FILTER
ANALOG GND
RC1
1M
REFERENCE
RESISTOR
0.1
μ
F
C1
Figure 2. Depiction of the Fixed SYNC to Feedback Offset (tPD) Which is
Present When a 1M
Resistor is Tied to VCC or Ground
3.0V
tPD = 2.25ns
±
1.0ns
tPD = –0.775ns
±
0.275ns
–0.775ns OFFSET
5. The tSKEWr specification guarantees that the rising edges
of outputs Q/2, Q0, Q1, Q2, Q3, and Q4 will always fall
within a 500ps window within one part. However, if the
relative position of each output within this window is not
specified, the 500 ps window must be added to each side
of the tPD specification limits to calculate the total
part–to–part skew. For this reason the absolute
distribution of these outputs are provided in table 2. When
taking the skew data, Q0 was used as a reference, so all
measurements are relative to this output. The information
in Table 2 is derived from measurements taken from the
14 process lots described in Note 1, over the temperature
and voltage range.
Output
Q0
–
(ps)
0
+
(ps)
0
Q1
–72
40
Q2
–44
276
Q3
–40
255
Q4
–274
–34
Q/2
–16
250
2X_Q
–633
–35
Table 2. Relative Positions of Outputs Q/2, Q0–Q4, 2X_Q, Within the 500ps tSKEWr Spec Window
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| MC88915FN55R2 | 功能描述:IC DRIVER CLK PLL 55MHZ 28-PLCC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| MC88915FN70 | 功能描述:IC DRIVER CLK PLL 70MHZ 28-PLCC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| MC88915FN70PLCC | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Low Skew CMOS PLL Clock Driver |
| MC88915FN70R2 | 功能描述:IC DRIVER CLK PLL 70MHZ 28-PLCC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| MC88915T | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW SKEW CMOS PLL CLOCK DRIVER |
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