參數(shù)資料
型號: ICS8402AK
英文描述: 350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER
中文描述: 350MHz頻段,水晶到的LVCMOS / LVTTL頻率合成器
文件頁數(shù): 10/15頁
文件大?。?/td> 247K
代理商: ICS8402AK
8402AY
www.icst.com/products/hiperclocks.html
REV. B OCTOBER 6, 2004
10
Integrated
Circuit
Systems, Inc.
ICS8402
350MH
Z
, C
RYSTAL
-
TO
-LVCMOS / LVTTL
F
REQUENCY
S
YNTHESIZER
Figure 3. C
RYSTAL
I
NPU
t I
NTERFACE
A
PPLICATION
I
NFORMATION
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS8402 provides sepa-
rate power supplies to isolate any high switching
noise from the outputs to the internal PLL. V
, V
, and V
should be individually connected to the power supply
plane through vias, and bypass capacitors should be
used for each pin. To achieve optimum jitter performance,
power supply isolation is required. Figure 2 illustrates how
a 10
resistor along with a 10
μ
F and a .01
μ
F bypass
capacitor should be connected to each V
DDA
pin.
F
IGURE
2. P
OWER
S
UPPLY
F
ILTERING
10
V
DDA
10
μ
F
.01
μ
F
3.3V
.01
μ
F
V
DD
P
OWER
S
UPPLY
F
ILTERING
T
ECHNIQUES
ICS84332
XTAL_IN
XTAL_OUT
X1
18pF Parallel Crystal
C2
22p
C1
22p
C
RYSTAL
I
NPUT
I
NTERFACE
The ICS8402 has been characterized with 18pF parallel resonant
crystals. The capacitor values, C1 and C2, shown in Figure 3 below
were determined using a 25MHz, 18pF parallel resonant crystal and
were chosen to minimize the ppm error. The optimum C1 and C2
values can be slightly adjusted for different board layouts.
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相關代理商/技術參數(shù)
參數(shù)描述
ICS8402AKI 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS8402AKIL 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS8402AKILF 功能描述:IC FREQ SYNTHESIZER 32VFQFPN RoHS:是 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:HiPerClockS™ 標準包裝:1,000 系列:- 類型:時鐘/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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應商設備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS8402AKILFT 功能描述:IC FREQ SYNTHESIZER 32VFQFPN RoHS:是 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:HiPerClockS™ 標準包裝:1,000 系列:- 類型:時鐘/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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應商設備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS8402AKIT 功能描述:IC FREQ SYNTHESIZER 32VFQFPN 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:HiPerClockS™ 標準包裝:1,000 系列:- 類型:時鐘/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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應商設備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT