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參數(shù)資料
| 型號： | MC88915TFN160R2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 88915 SERIES, PLL BASED CLOCK DRIVER, 7 TRUE OUTPUT(S), 1 INVERTED OUTPUT(S), PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大?。?/td> | 181K |
| 代理商： | MC88915TFN160R2 |
MC88915T
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
26
SYNC INPUT FREQUENCY (MHz)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
5
10
15
20
25
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.5
5.0
7.5
10.0
12.5
15.0
17.5
2.5
5.0
7.5
10.0
12.5
15.0
17.5
-0.5
-1.0
-1.5
-2.0
2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5
tPD
SYNC to
FEEDBACK
(ns)
SYNC INPUT FREQUENCY (MHz)
Figure 3a.
tPD versus Frequency Variation for Q/2 Output Fed
Back, Including Process and Voltage Variation @ 25°C
(With 1M Resistor Tied to Analog VCC)
-0.50
-0.75
-1.00
-1.25
-1.50
tPD
SYNC to
FEEDBACK
(ns)
tPD
SYNC to
FEEDBACK
(ns)
tPD
SYNC to
FEEDBACK
(ns)
Figure 3b.
tPD versus Frequency Variation for Q4 Output Fed
Back, Including Process and Voltage Variation @ 25°C
(With 1M Resistor Tied to Analog VCC)
Figure 3c.
tPD versus Frequency Variation for Q/2 Output Fed
Back, Including Process and Voltage Variation @ 25°C
(With 1M Resistor Tied to Analog GND)
Figure 3d.
tPD versus Frequency Variation for Q4 Output Fed
Back, Including Process and Voltage Variation @ 25°C
(With 1M Resistor Tied to Analog GND)
SYNC INPUT FREQUENCY (MHz)
8. The lock indicator pin (LOCK) will reliably indicate a
phase–locked condition at SYNC input frequencies down
to 10MHz. At frequencies below 10MHz, the frequency of
correction pulses going into the phase detector form the
SYNC and FEEDBACK pins may not be sufficient to allow
the lock indicator circuitry to accurately predict a phase–
locked conditition. The MC88915T is guaranteed to
provide stable phase–locked operation down to the
appropriate minimum input frequency given in Table 1,
even though the LOCK pin may be LOW at frequencies
below 10MHZ. The exact minimum frequency where the
lock indicator functionality can be guaranteed will be
available when the MC88915T reaches ‘MC’ status.
2
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| MC88915TFN70 | 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(biāo)準(zhǔn)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:* |
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