參數(shù)資料
型號(hào): ICS843002CY-31LFT
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 700 MHz, OTHER CLOCK GENERATOR, PQFP64
封裝: 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁(yè)數(shù): 12/27頁(yè)
文件大小: 463K
代理商: ICS843002CY-31LFT
843002CY-31
www.icst.com/products/hiperclocks.html
REV. B NOVEMBER 7, 2005
2
Integrated
Circuit
Systems, Inc.
ICS843002-31
700MHZ FEMTOCLOCKSVCXO BASED
FREQUENCY TRANSLATOR AND JITTER ATTENUATOR
PRELIMINARY
BLOCK DIAGRAM - NOMINAL SYSTEM CONFIGURATION
00
01
10
11 Bypass
Input Divider
XOIN[12:0]
÷1 to ÷8191
VCXO PLL
FemtoClock
Frequency
Multiplier
VCXO PLL
Feedback Divider
XOFB[12:0]
÷1 to ÷8191
VCXO PLL Output
Divider NV[1:0]
00: ÷1
01: ÷12
10: ÷16
11: Disabled Drive Low
QA Output
Divider NPA[2:0]
000: ÷1
001: ÷2
010: ÷4
011: ÷8
100: ÷12
101: ÷14
110: ÷16
111: Disabled
Drive Low
QB Output
Divider NPB[2:0]
000: QA ÷1
001: QA ÷2
010: QA ÷4
011: QA ÷8
100: XOIN Output
101: OFB Output
110: MP Output
111: Disabled
Drive Low
LOCK Detect
3
2
13
ISET
Charge Pump Current
17.5 - 25MHz
External Loop
Filter Connection
XT
AL_IN
XT
AL_OUT
LF0 LF1
>1 1
0: x32
1: x28
NPB[2:0]
NPA[2:0]
NV[1:0]
CLK0
nCLK0
CLK1
CLK2
SEL1
SEL0
XOIN[12:0]
XOFB[12:0]
MP
OE_REF
VCLK
QA
nQA
QB
nQB
REF_CLK
LOCK
NOTE 1: For application configuration (non-test/bypass modes).
NOTE 2: Bold lines
are primary clock paths (non-control/non-feedback lines).
Not all control lines and signal paths are shown in this simplified block diagram.
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