FEMTOC
參數(shù)資料
型號(hào): ICS840002AGILFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 2/15頁
文件大?。?/td> 0K
描述: IC FREQ SYNTHESIZER 16-TSSOP
標(biāo)準(zhǔn)包裝: 2,500
系列: HiPerClockS™, FemtoClock™
類型: 頻率合成器
PLL: 帶旁路
輸入: LVCMOS,LVTTL,晶體
輸出: LVCMOS,LVTTL
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無/無
頻率 - 最大: 226.67MHz
除法器/乘法器: 是/無
電源電壓: 2.375 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
其它名稱: 840002AGILFT
840002AGI
www.idt.com
REV. A NOVEMBER 10, 2010
10
ICS840002I
FEMTOCLOCKSCRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
LAYOUT GUIDELINE
Figure 3 shows a schematic example of the ICS840002I. An
example of LVCMOS termination is shown in this schematic.
Additional LVCMOS termination approaches are shown in the
LVCMOS Termination Application Note. In this example, an 18
pF parallel resonant 26.5625MHz crystal is used. The C1=22pF
FIGURE 3. ICS840002I SCHEMATIC EXAMPLE
and C2=22pF are recommended for frequency accuracy. For
different board layout, the C1 and C2 may be slightly adjusted
for optimizing frequency accuracy. 1K
Ω pullup or pulldown re-
sistors can be used for the logic control input pins.
XTAL1
Optional Termination
RD1
Not Install
RU1
1K
VDD
C4
0.01u
If not using the crystal input, it can be left floating.
For additional protection the XTAL_IN pin can be
tied to ground.
Zo = 50 Ohm
LVCMOS
Set Logic
Input to
'0'
Unused output can be left floating. There should
no trace attached to unused output. Device
characterized with all outputs terminated.
R1
10
R4
100
To Logic
Input
pins
Set Logic
Input to
'1'
Logic Control Input Examples
R2
33
C6
0.1u
VDDA
C2
22pF
To Logic
Input
pins
Zo = 50 Ohm
X1
VDD
RD2
1K
C5
0.1u
C3
10uF
VDD
R3
100
VDD
LVCMOS
XTAL2
U1
ICS840002i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
FSEL0
XTAL_SEL
TEST_CLK
OE
MR
nPLL_SEL
VDDA
VDD
XTAL_OUT
XTAL_IN
VDDO
Q1
Q0
GND
FSEL1
RU2
Not Install
VDD
C1
22pF
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參數(shù)描述
ICS840002AGIT 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840002AGLF 功能描述:IC FREQ SYNTHESIZER 16-TSSOP 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:1,000 系列:- 類型: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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS840002AGLFT 功能描述:IC FREQ SYNTHESIZER 16-TSSOP 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:1,000 系列:- 類型: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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS840002AGT 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/
ICS840002AI 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER