- 您现在的位置：买卖IC网 > PDF目录95954 > MK2049-34SI (INTEGRATED DEVICE TECHNOLOGY INC) 77.76 MHz, OTHER CLOCK GENERATOR, PDSO20 PDF资料下载
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： | 1/9页 |
| 文件大小： | 96K |
| 代理商： | MK2049-34SI |
DATASHEET
3.3 VOLT COMMUNICATIONS CLOCK VCXO PLL
MK2049-34
IDT 3.3 VOLT COMMUNICATIONS CLOCK VCXO PLL
1
MK2049-34
REV F 102203
Description
The MK2049-34 is a VCXO Phased Locked Loop (PLL)
based clock synthesizer that accepts multiple input
frequencies. With an 8 kHz clock input as a reference, the
MK2049-34 generates T1, E1, T3, E3, ISDN, xDSL, and
other communications frequencies. This allows for the
generation of clocks frequency-locked and phase-locked to
an 8 kHz backplane clock, simplifying clock synchronization
in communications systems. The MK2409-34 can also
accept a T1 or E1 input clock and provide the same output
for loop timing. All outputs are frequency locked together
and to the input.
This part also has a jitter-attenuated Buffer capability. In this
mode, the MK2049-34 is ideal for filtering jitter from 27 MHz
video clocks or other clocks with high jitter.
ICS can customize these devices for many other different
frequencies.
Features
Packaged in 20-pin SOIC
3.3 V + 5% operation
Fixed I/O phase relationship on all selections
Meets the TR62411, ETS300 011, and GR-1244
specification for MTIE, Pull-in/Hold-in Range, Phase
Transients, and Jitter Generation for Stratum 3, 4, and 4E
Accepts multiple inputs: 8 kHz backplane clock, Loop
Timing frequencies, or 10 to 36 MHz
Locks to 8 kHz + 100 ppm (External mode)
Buffer Mode allows jitter attenuation of 10 to 36 MHz
input and x1/x0.5 or x2/x4 outputs
Exact internal ratios enable zero ppm error
Output clock rates include T1, E1, T3, E3, ISDN, xDSL,
and the OC3 submultiples
See also the MK2049-36 and MK2049-45
Block Diagram
VCXO-BASED
PLL
(MASTER CLOCK
GENERATOR)
EXTERNAL PULLABLE CRYSTAL
(external loop filter)
FREQUENCY
MULTIPLYING
PLL
2
INPUT REFERENCE
CLOCK
(TYPICALLY 8KHZ)
CLOCK OUTPUT
CLOCK OUTPUT / 2
8 KHZ (REGENERATED)
4
FREQUENCY SELECT
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 |
发布紧急采购，3分钟左右您将得到回复。