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參數(shù)資料
| 型號(hào)： | ICS84329AVT |
| 英文描述： | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | 700MHz的，低抖動(dòng)，晶體至3.3V的差分LVPECL頻率合成器 |
| 文件頁(yè)數(shù)： | 10/19頁(yè) |
| 文件大?。?/td> | 279K |
| 代理商： | ICS84329AVT |
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84329AV
www.icst.com/products/hiperclocks.html
REV. D DECEMBER 15, 2004
10
Integrated
Circuit
Systems, Inc.
ICS84329
700MH
Z
, L
OW
J
ITTER
, C
RYSTAL
-
TO
-3.3V
D
IFFERENTIAL
LVPECL F
REQUENCY
S
YNTHESIZER
The ICS84329 features an internal oscillator that uses an external
quartz crystal as the source of its reference frequency. The
oscillator is a series resonant, multi-vibrator type design. This
design provides better stability and eliminates the need for large
on chip capacitors. Though a series resonant crystal is preferred,
a parallel resonant crystal can be used. A parallel resonant mode
crystal used in a series resonant circuit will exhibit a frequency
of oscillation a few hundred ppm lower than specified. A few
hundred ppm translates to KHz inaccuracy. In general computing
applications, this level of inaccuracy is irrelevant. If better ppm
accuracy is required, an external capacitor can be added to a
quartz crystal in series to XTAL_IN. Figure 5Ashows how to
interface with a crystal.
Figures 5A and 5B show various crystal parameters which are
recommended only as guidelines. Figure 5Ashows how to inter-
face a capacitor with a parallel resonant crystal. Figure 5Bshows
the capacitor value needed for the optimum ppm performance
over various series resonant crystal frequencies. For IA64/32
platforms which required a Raltron Parallel Resonant Quartz
crystal part #AS-16.66-18-SMD-T-M1, a 7pF series capacitor can
be used to better the ppm accuracy.
F
IGURE
5A. C
RYSTAL
I
NTERFACE
NOTE: For crystal frequencies higher than 17MHz,
a series tuning capacitor is required for proper operation.
XTAL_OUT
XTAL_IN
ICS84329
F
IGURE
5B.
Recommended tuning capacitance for various series
resonant crystals.
C
RYSTAL
I
NPUT
AND
O
SCILLATOR
I
NTERFACE
10.000
14.318
12.000
24.000
20.000
16.000
0
5
10
15
20
25
30
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Series Resonant Crystal Frequency (MHz)
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS84329AYT | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330 | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BV | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BVT | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BY | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS84329AY | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329AYT | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329B | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329BM-01 | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER 700MHZ 28-SOIC |
| ICS84329BM-01LF | 功能描述:IC SYNTHESIZER 700MHZ 28-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:時(shí)鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類(lèi)型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱(chēng):844S012AKI-01LFT |
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