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ICS87972DYILFT 参数 Datasheet PDF下载

ICS87972DYILFT图片预览
型号: ICS87972DYILFT
PDF下载: 下载PDF文件 查看货源
内容描述: [Processor Specific Clock Generator, 125MHz, CMOS, PQFP52, 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBC, LQFP-52]
分类和应用: 时钟外围集成电路晶体
文件页数/大小: 16 页 / 153 K
品牌: SPECTRUM [ SPECTRUM MICROWAVE, INC. ]
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Integrated
Circuit
Systems, Inc.
ICS87972I
L
OW
S
KEW
, 1-
TO
-12
LVCMOS/LVTTL C
LOCK
M
ULTIPLIER
/Z
ERO
D
ELAY
B
UFFER
Test Conditions
Minimum
Typical
4
51
V
DDA
, V
DD
, V
DDO
= 3.465V
5
7
18
12
Maximum
Units
pF
pF
Ω
T
ABLE
2. P
IN
C
HARACTERISTICS
Symbol
C
IN
R
PULLUP
C
PD
R
OUT
Parameter
Input Capacitance
Input Pullup Resistor
Power Dissipation Capacitance
(per output)
Output Impedance
T
ABLE
3A. O
UTPUT
B
ANK
C
ONFIGURATION
S
ELECT
F
UNCTION
T
ABLE
Inputs
FSEL_A1
0
0
1
1
FSEL_A0
0
1
0
1
Outputs
QA
÷4
÷6
÷8
÷12
0
0
1
1
Inputs
FSEL_B1
FSEL_B0
0
1
0
1
Outputs
QB
÷4
÷6
÷8
÷10
0
0
1
1
Inputs
FSEL_C1
FSEL_C0
0
1
0
1
Outputs
QC
÷2
÷4
÷6
÷8
T
ABLE
3B. F
EEDBACK
C
ONFIGURATION
S
ELECT
F
UNCTION
T
ABLE
Inputs
FSEL_FB2
0
0
0
0
1
1
1
1
FSEL_FB1
0
0
1
1
0
0
1
1
FSEL_FB0
0
1
0
1
0
1
0
1
Outputs
QFB
÷4
÷6
÷8
÷10
÷8
÷12
÷16
÷20
T
ABLE
3C. C
ONTROL
I
NPUT
S
ELECT
F
UNCTION
T
ABLE
Control Pin
VCO_SEL
REF_SEL
CLK_SEL
PLL_SEL
nMR/OE
INV_CLK
Logic 0
VCO/2
CLK0 or CLK1
CLK0
BYPASS PLL
Master Reset/Output Hi Z
Non-Inver ted QC2, QC3
Logic 1
VC O
XTAL
CLK1
Enable PLL
Enable Outputs
Inver ted QC2, QC3
87972DYI
www.icst.com/products/hiperclocks.html
5
REV. D NOVEMBER 29, 2005