參數(shù)資料
型號： MK2049-10SILF
元件分類： 時鐘產(chǎn)生/分配
英文描述： 44.736 MHz, OTHER CLOCK GENERATOR, PDSO20
封裝： 0.300 INCH, SOIC-20
文件頁數(shù)： 10/13頁
文件大小： 185K
代理商： MK2049-10SILF
Communications Clock PLL
MDS 2049-10 E
6
Revision 021402
Integrated Circuit Systems, Inc. q 525 Race Street San Jose, CA 95126 q tel (408) 295-9800 q
www.icst.com
MK2049-10
Recommended Loop Filter Values Vs. Output Frequency Range Selection
Loop Filter Capacitor Type
Loop filter capacitors C1 and C2 should be film type.
This includes the PPS polymer film type made by
Panasonic, or metal poly types made by MuRata or
Cornell Dublier.
The Panasonic ECP-U and ECH-U series capacitors
are typically used on the ICS MK20xx demo boards
and are found to work well. These devices are
available from Digi-Key.
Other acceptable capacitor types include those with
C0G or NP0 dielectric.
Avoid high-K dielectrics like Z5U and X7R (these are
acceptable for the decoupling capacitors, however).
The loop capacitors must have a high dielectric
resistance to avoid leakage-induced phase noise. For
this reason, DO NOT use any type of polarized or
electrolytic capacitors. Microphonics (mechanical
board vibration) will also induce output phase noise.
High-K dielectrics like Z5U and X7R have piezoelectric
properties that convert mechanical vibration into
voltage noise that interferes with VCXO operation.
For additional questions, please contact your ICS
Sales FAE or contact ICS MicroClock applications at
(408) 297-1201.
Power Supply Considerations
As with any integrated clock device, the MK2049-10
has a special set of power supply requirements:
The feed from the system power supply must be
filtered for noise that can cause output clock jitter.
Power supply noise sources include the system
FS3:0
Input
Clock
(ICLK)
External
Crystal
Freq
(MHz)
VCXO PLL
‘N’
(feedback
divider)
Value
RZ
C1
C2
Approximate
Loop
Bandwidth
(-3dB point)
Approximate
Damping
Factor
0000
8 kHz
12.352
1544
2.7 M
0.1
F
330 pF
40 Hz
4
0001
8 kHz
12.288
1536
2.7 M
0.1
F
330 pF
40 Hz
4
0010
8 kHz
11.184
1398
2.7 M
0.1
F
330 pF
40 Hz
4
0011
8 kHz
11.456
1432
2.7 M
0.1
F
330 pF
40 Hz
4
0100
8 kHz
12.96
1620
2.7 M
0.1
F
330 pF
40 Hz
4
0101
8 kHz
8.192
1024
2.7 M
0.1
F
330 pF
40 Hz
4
0110
8 kHz
12.288
1536
2.7 M
0.1
F
330 pF
40 Hz
4
0111
8 kHz
12.96
1620
2.7 M
0.1
F
330 pF
40 Hz
4
1000 1.544 MHz
12.352
8
47 k
0.1
F
4.7 nF
180 Hz
1
Filter Option for Above Mode
22 k
1
F
47 nF
90 Hz
1.4
1001 2.048 MHz
12.288
6
43 k
0.1
F
4.7 nF
220 Hz
1
Filter Option for Above Mode
18 k
1
F
47 nF
100 Hz
1.4
1010
44.736
MHz
11.184
2
24 k
0.1
F
4.7 nF
400 Hz
1
Filter Option for Above Mode
11 k
1
F
47 nF
180 Hz
1.4
1011
34.368
MHz
11.456
2
24 k
0.1
F
4.7 nF
400 Hz
1
Filter Option for Above Mode
11 k
1
F
47 nF
180 Hz
1.4
1100
8 kHz
10.24
1280
2.7 M
0.1
F
330 pF
40 Hz
4
1101
8 kHz
12.288
1536
2.7 M
0.1
F
330 pF
40 Hz
4
1110 19-28 MHz
ICLK/2
2
24 k
0.1
F
4.7 nF
400 Hz
1
Filter Option for Above Mode
11 k
1
F
47 nF
180 Hz
1.4
1111 10-14 MHz
ICLK
6
43 k
0.1
F
4.7 nF
220 Hz
1
Filter Option for Above Mode
18 k
1
F
47 nF
100 Hz
1.4
相關PDF資料
PDF描述
MK2049-10SITR 44.736 MHz, OTHER CLOCK GENERATOR, PDSO20
MK2049-10SITRLF 44.736 MHz, OTHER CLOCK GENERATOR, PDSO20
MK2058-01SILF 27 MHz, OTHER CLOCK GENERATOR, PDSO20
MK2058-01SILFTR 27 MHz, OTHER CLOCK GENERATOR, PDSO20
MK2058-01SITR OTHER CLOCK GENERATOR, PDSO20
相關代理商/技術參數(shù)
參數(shù)描述
MK2049-34 制造商:ICS 制造商全稱:ICS 功能描述:3.3 V Communications Clock PLL
MK2049-34A 制造商:ICS 制造商全稱:ICS 功能描述:3.3 Volt Communications Clock VCXO PLL
MK2049-34SAI 功能描述:IC VCXO PLL CLK SYNTH 20-SOIC 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:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:*
MK2049-34SAILF 功能描述:時鐘合成器/抖動清除器 3.3 VOLT COMMUNICA. CLOCK VCXO PLL RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
MK2049-34SAILFTR 功能描述:時鐘合成器/抖動清除器 3.3 VOLT COMMUNICA. CLOCK VCXO PLL RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
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