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参数资料
| 型号： | MK2049-34SI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 77.76 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| 封装： | 0.300 INCH, SOIC-20 |
| 文件页数： | 3/9页 |
| 文件大小： | 96K |
| 代理商： | MK2049-34SI |
MK2049-34
3.3 VOLT COMMUNICATIONS CLOCK VCXO PLL
VCXO AND SYNTHESIZER
IDT 3.3 VOLT COMMUNICATIONS CLOCK VCXO PLL
3
MK2049-34
REV F 102203
Output Decoding Table - External Mode (MHz)
Output Decoding Table - Loop Timing Mode (MHz)
Output Decoding Table - Buffer Mode (MHz)
0 = connect directly to ground, 1 = connect directly to VDD
Crystal is connected to pins 2 and 3; clock input is applied to pin 13.
Operating Modes
The MK2049-34 has three operating modes: External, Loop Timing, and Buffer. Although each mode uses an input clock to
generate various output clocks, there are important differences in their input and crystal requirements.
External Mode
The MK2049-34 accepts an external 8 kHz clock and will produce a number of common communication clock frequencies.
The 8 kHz input clock does not need to have a 50% duty cycle; a “high” or “on” pulse as narrow as 10 ns is acceptable. In
the MK2049-34, the rising edges of CLK and CLK/2 are both aligned with the rising edge of the 8 kHz ICLK; refer to Figure
1 on page 4 for more details.
Loop Timing Mode
This mode can be used to remove the jitter from standard high-frequency communication clocks. For T1 and E1 inputs, the
CLK/2 output will be the same as the input frequency, with CLK at twice the input frequency.
ICLK
FS3
FS2
FS1
FS0
CLK/2
CLK
8k
Crystal
Used (MHz)
N
8 kHz
0000
1.544
3.088
8 kHz
12.352
1544
8 kHz
0001
2.048
4.096
8 kHz
12.288
1536
8 kHz
0010
22.368
44.736
8 kHz
11.184
1398
8 kHz
0011
17.184
34.368
8 kHz
11.456
1432
8 kHz
0100
19.44
38.88
8 kHz
9.72
1215
8 kHz
0101
16.384
32.768
8 kHz
8.192
1024
8 kHz
0110
17.664
35.328
8 kHz
17.664
2208
8 kHz
0111
18.688
37.376
8 kHz
9.344
1168
8 kHz
1010
7.68
15.36
8 kHz
15.36
1920
8 kHz
1011
10.752
21.504
8 kHz
10.752
1344
8 kHz
1100
10.24
20.48
8 kHz
10.24
1280
8 kHz
1101
38.88
77.76
8 kHz
9.72
1215
ICLK
FS3
FS2
FS1
FS0
CLK/2
CLK
8k
Crystal
N
1.544
1000
1.544
3.088
N/A
12.352
24
2.048
1001
2.048
4.096
N/A
12.288
18
ICLK
FS3
FS2
FS1
FS0
CLK/2
CLK
8k
Crystal
N
19 - 36
1110
ICLK/2
ICLK
N/A
ICLK/2
3
10 - 18
1111
2*ICLK
4*ICLK
N/A
ICLK
3
相关PDF资料 |
PDF描述 |
|---|---|
| MK2049-34SITR | 77.76 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| MK2704S | 36.864 MHz, VIDEO CLOCK GENERATOR, PDSO8 |
| MK2705S | 24.576 MHz, VIDEO CLOCK GENERATOR, PDSO8 |
| MK2716S | 74.25 MHz, VIDEO CLOCK GENERATOR, PDSO8 |
| MK2727SLF | 27 MHz, OTHER CLOCK GENERATOR, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MK2049-34SITR | 制造商:ICS 制造商全称:ICS 功能描述:3.3 V Communications Clock PLL |
| MK2049-35 | 制造商:ICS 制造商全称:ICS 功能描述:3.3 V Communications Clock PLL |
| MK2049-35SI | 制造商:Integrated Device Technology Inc 功能描述:49.152 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| MK2049-35SITR | 制造商:ICS 制造商全称:ICS 功能描述:3.3 V Communications Clock PLL |
| MK2049-36 | 制造商:ICS 制造商全称:ICS 功能描述:3.3 V Communications Clock PLL |
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