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參數(shù)資料
| 型號(hào)： | ICS843002AKI-40LFT |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SYNTHESIZER LVPECL 32-VFQFPN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | HiPerClockS™, FemtoClock™ |
| 類型： | 時(shí)鐘發(fā)生器，時(shí)鐘同步器，頻率變換器，抖動(dòng)衰減器，多路復(fù)用器 |
| PLL： | 帶旁路 |
| 輸入： | HCSL，LVCMOS，LVDS，LVHSTL，LVPECL，LVTTL，SSTL |
| 輸出： | LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 3:2 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 175MHz |
| 除法器/乘法器： | 是/是 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-VFQFPN 裸露焊盤（4x4） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 843002AKI-40LFT |
ICS843002I-40
175MHZ, FEMTOCLOCKS VCXO BASED SONET/SDH JITTER ATTENUATOR
IDT / ICS VCXO BASED SONET/SDH JITTER ATTENUATOR
11
ICS843002AKI-40 REV. B APRIL 27, 2009
Power Supply Filtering Technique
As in any high speed analog circuitry, the power supply pins are
vulnerable to random noise. To achieve optimum jitter
performance, power supply isolation is required. The
ICS843002I-40 provides separate power supplies to isolate any
high switching noise from the outputs to the internal PLL. VCC,
VCCA, VCCO_LVPECL and VCCO_LVCMOS should be individually
connected to the power supply plane through vias, and 0.01F
bypass capacitors should be used for each pin. Figure 1 illustrates
this for a generic VCC pin and also shows that VCCA requires that
an additional 10
resistor along with a 10F bypass capacitor be
connected to the VCCA pin.
Figure 1. Power Supply Filtering
Wiring the Differential Input to Accept Single Ended Levels
Figure 2 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = VCC/2 is
generated by the bias resistors R1, R2 and C1. This bias circuit
should be located as close as possible to the input pin. The ratio of
R1 and R2 might need to be adjusted to position the V_REF in the
center of the input voltage swing. For example, if the input clock
swing is only 2.5V and VCC = 3.3V, V_REF should be 1.25V and
R2/R1 = 0.609.
Figure 2. Single-Ended Signal Driving Differential Input
VCC
VCCA
3.3V
10
10F
.01F
V_REF
Single Ended Clock Input
VCC
CLKx
nCLKx
R1
1K
C1
0.1u
R2
1K
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843002AKI-40T | 制造商:ICS 制造商全稱:ICS 功能描述:175MHZ, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| ICS843002AKI-41 | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER LVPECL 32VFQFN |
| ICS843002AKI-41LF | 功能描述:IC SYNTHESIZER LVPECL 32-VFQFPN RoHS:是 類別: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™, FemtoClock™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| ICS843002AKI-41LFT | 功能描述:IC SYNTHESIZER LVPECL 32-VFQFPN RoHS:是 類別: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™, FemtoClock™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| ICS843002AKI-41T | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER LVPECL 32VFQFN |
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