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參數資料
| 型號： | ICS843020AY-01LF |
| 英文描述： | FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | FEMTOCLOCKS -商標680MHZ，晶體至3.3V的差分LVPECL頻率合成器 |
| 文件頁數： | 11/20頁 |
| 文件大?。?/td> | 218K |
| 代理商： | ICS843020AY-01LF |
843020AY-01
www.icst.com/products/hiperclocks.html
REV. B APRIL 14, 2005
11
Integrated
Circuit
Systems, Inc.
ICS843020-01
F
EMTO
C
LOCKS
680MH
Z
, C
RYSTAL
-
TO
-
3.3V D
IFFERENTIAL
LVPECL F
REQUENCY
S
YNTHESIZER
A
PPLICATION
I
NFORMATION
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS843020-01 provides
separate 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 llustrates how
a 10
Ω
resistor along with a 10
μ
F and a .01
μ
F bypass
capacitor should be connected to each V
CCA
pin.
P
OWER
S
UPPLY
F
ILTERING
T
ECHNIQUES
F
IGURE
2. P
OWER
S
UPPLY
F
ILTERING
10
Ω
V
CCA
10
μ
F
.01
μ
F
3.3V
.01
μ
F
V
CC
C
RYSTAL
I
NPUT
I
NTERFACE
A crystal can be characterized for either series or parallel mode
operation. The ICS843020-01 has a built-in crystal oscillator circuit.
This interface can accept either a series or parallel crystal without
additional components and generate frequencies with accuracy
Figure 3. C
RYSTAL
I
NPU
t I
NTERFACE
suitable for most applications. Additional accuracy can be
achieved by adding two small capacitors C1 and C2 as shown in
Figure 3
C1
18p
X1
18pF Parallel Crystal
C2
22p
XTAL_OUT
XTAL_IN
相關PDF資料 |
PDF描述 |
|---|---|
| ICS843020AY-01LFT | FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843020AY-01T | FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843020-01 | FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843021AGI-01 | FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V 125MHZ LVPECL CLOCK GENERATOR |
| ICS843021AGI-01T | FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V 125MHZ LVPECL CLOCK GENERATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ICS843020AY-01LFT | 功能描述:IC SYNTHESIZER LVPECL 32-LQFP 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™, FemtoClock™ 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:- 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 |
| ICS843020AY-01T | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843021 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843021AG | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843021AG-01 | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER LVPECL 8TSSOP |
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