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PCK12430BD-T

更新时间： 2024-11-14 10:32:07
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
2页 71K
描述
IC 800 MHz, OTHER CLOCK GENERATOR, PQFP32, LQFP-32, Clock Generator

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PCK12430BD-T 数据手册

 浏览型号PCK12430BD-T的Datasheet PDF文件第2页 
25-800 MHz Differential PECL  
Clock Generator Family  
PCK12429  
The PCK12429 provides a fully integrated crystal oscillator,  
PLL with integrated loop filter, and programmable frequency  
divider ratios to generate a high-quality, low-jitter differential  
PECL output clock from an external quartz crystal reference.  
S e m i c o n d u c t o r s  
1
2
3
4
5
6
7
8
24  
23  
22  
21  
20  
19  
18  
17  
S_CLOCK  
S_DATA  
NC  
N[1]  
N[0]  
M[8]  
M[7]  
M[6]  
M[5]  
M[4]  
S_LOAD  
Description  
PLL-V  
PLL-V  
CC  
CC  
PCK12429BD  
The PCK12429 uses an external quartz crystal reference frequency with  
an input range of 10-20 MHz to generate one output with a frequency  
between 25 and 400 MHz, programmable through either serial or parallel  
interface. In the typical case of a 16 MHz crystal, the PCK12429 derives an  
internal reference frequency of 1 MHz, which drives an internal PLL. The  
loop divider ratio, M, is programmable between 200 and 400 to create a  
VCO output frequency between 200 MHz and 400 MHz. TheVCO output  
frequency can then be further divided by the output divider ratio N, which  
can be programmed to values of 1, 2, 4 or 8, for an overall output frequency  
range of 25 MHz (M=200, N=8) up to 400 MHz (M=400, N=1).  
NC  
NC  
XTAL1  
Features  
•
•
•
•
One 25-400 MHz differential PECL clock output  
25 pꢀ peak-to-peak output ꢁitter  
Fully integrated PLL and loop filter - no external componentꢀ needed  
Integrated ꢀerieꢀ-reꢀonant cryꢀtal oꢀcillator - no external componentꢀ  
needed beꢀideꢀ cryꢀtal  
The PCK12429 has a fully integrated PLL loop filter and uses a pure  
series-resonant crystal oscillator, eliminating the need for external components.  
It uses separate voltage supplies to minimize noise-induced jitter. The resulting  
output is a high-quality differential PECL output clock signal with extremely  
low jitter of 25 ps peak-to-peak. Frequency lock is achieved in less than  
10 ms with minimal frequency overshoot.  
•
•
•
•
•
Frequency programmable to 1 MHz or finer reꢀolution  
Parallel or 3-wire ꢀerial programming interface  
Synchronouꢀ output enable  
Synchronouꢀ frequency ramp-down on power-down (PCK12439)  
Offered in 28-pin PLCC, 32-pin LQFP and 28-pin SO packageꢀ  
Pin Configuration  
M [0]  
The basic function in this family is PCK12429, programmable from 25 MHz to  
400 MHz. PCK12429S adds spread spectrum capability. For operation from 50  
MHz to 800 MHz, PCK12430 can be used, or PCK12439 which adds a gradual  
frequency step-down function supporting system power-down modes.  
1
2
28 P_LOAD  
M [1]  
M [2]  
M [3]  
27  
26  
25  
V
CC  
3
XTAL2  
XTAL1  
4
M [4]  
M [5]  
5
24 NC  
23  
22 PLL-V  
6
NC  
25  
V
CC  
5
6
XTAL2  
OE  
Applications  
24 FOUT  
23 FOUT  
22 GND  
M [6]  
M [7]  
M [8]  
N [0]  
7
CC  
7
P_LOAD  
M [0]  
8
21 S_LOAD  
20 S_DATA  
19 S_CLOCK  
•
•
•
High-performance UNIX computing platforms  
8
PCK12429A  
9
™
IA-64 Itanium 2 architecture ꢀerver motherboardꢀ  
21  
V
CC  
9
M [1]  
10  
20 TEST  
19 GND  
10  
11  
M [2]  
High-performance PECL reference clock generation  
N [1] 11  
GND 12  
TEST 13  
18  
V
CC  
M [3]  
17 FOUT  
16 FOUT  
15 GND  
Operating Characteristics  
V
14  
CC  
•
•
•
•
Operates from a 3.3V power supply  
0°C to +70°C operating temperature range  
Input crystal frequency range between 10 MHz and 20 MHz  
Serial programming interface operates at up to 10 MHz  
Order Information  
Package  
SO  
Container  
Tube  
T & R  
T & R  
Tray, single  
PCK12429  
PCK12429S  
PCK12430  
PCK12439  
PCK12429D  
PCK12429D-T  
PCK12429BD-T  
PCK12429BD  
PCK12429BD  
PCK12429A  
PCK12429SD  
PCK12429SD-T  
PCK12429SBD-T  
PCK12429SBD  
PCK12429SBD  
PCK12429SA  
PCK12430D  
PCK12430D-T  
PCK12430BD-T  
PCK12430BD  
PCK12430BD  
PCK12430A  
PCK12439D  
PCK12439D-T  
PCK12439BD-T  
PCK12439BD  
PCK12439BD  
PCK12439A  
LQFP  
PLCC  
Tray, multiple  
Tube  
T & R  
PCK12429A-T  
PCK12429SA-T  
PCK12430A-T  
PCK12439A-T  
12

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