參數(shù)資料
型號(hào): SK12439PJT
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 800 MHz, OTHER CLOCK GENERATOR, PQCC28
封裝: PLASTIC, LCC-28
文件頁(yè)數(shù): 11/18頁(yè)
文件大?。?/td> 233K
代理商: SK12439PJT
2
Revision 1/February 9, 2001
www.semtech.com
HIGH-PER.ORMANCE PRODUCTS
SK12439
ADVANCED
.unctional Block Diagram
Figure 1.
SK12439 Block Diagram
PHASE
DETECTOR
7-BIT DIV M
COUNTER
400 - 800
MHz
16.66 MHz
OE
S_LOAD
FREF_EXT
XTAL_SEL
PWR_DOWN
S_DATA
S_CLOCK
P_LOAD*
VCC1
PLL_VCC
VCC0
+3.3 or 5.0V
VCO
DIV N
(1, 2, 4, 8)
POWER
DOWN
LATCH
01
7-BIT
SR
01
2-BIT
SR
3-BIT
SR
21
14
17, 18
22, 19
7
8
2
M[6:0]
N[1:0]
LATCH
FOUT
FOUT*
TEST
25
24
23
20
4
3
15
2
5
6
7
28
27
26
XTAL1
OSC
XTAL2
DIV 2
0
1
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