參數(shù)資料
型號: ICS87004AGILF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘及定時
英文描述: 87004 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
封裝: 4.40 X 7.80 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-24
文件頁數(shù): 1/15頁
文件大小: 167K
代理商: ICS87004AGILF
87004AGI
1
REV. C DECEMBER 7, 2007
ICS87004I
1:4, DIFFERENTIAL-TO-LVCMOS/LVTTL
ZERO DELAY CLOCK GENERATOR
GENERAL DESCRIPTION
The ICS87004I is a highly versatile 1:4 Differ-
ential-to-LVCMOS/LVTTL Clock Generator and
a member of the HiPerClockS family of High
Performance Clock Solutions from IDT. The
ICS87004I has two selectable clock inputs. The
CLK0, nCLK0 and CLK1, nCLK1 pairs can accept most
standard differential input levels. Internal bias on the
nCLK0 and nCLK1 inputs allows the CLK0 and CLK1
inputs to accept LVCMOS/LVTTL. The ICS87004I has a fully
integrated PLL and can be configured as zero delay
buffer, multiplier or divider and has an input and output
frequency range of 15.625MHz to 250MHz. The reference
divider, feedback divider and output divider are each
programmable, thereby allowing for the following output-
to-input frequency ratios: 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8.
The external feedback allows the device to achieve “zero
delay” between the input clock and the output clocks. The
PLL_SEL pin can be used to bypass the PLL for system
test and debug purposes. In bypass mode, the reference
clock is routed around the PLL and into the inter nal
output dividers.
FEATURES
Four LVCMOS/LVTTL outputs, 7
Ω typical output impedance
Selectable CLK0, nCLK0 or CLK1, nCLK1 clock inputs
CLKx, nCLKx pairs can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
Internal bias on nCLK0 and nCLK1 to support
LVCMOS/LVTTL levels on CLK0 and CLK1 inputs
Output frequency range: 15.625MHz to 250MHz
Input frequency range: 15.625MHz to 250MHz
VCO range: 250MHz to 500MHz
External feedback for “zero delay” clock regeneration
with configurable frequencies
Programmable dividers allow for the following output-to-input
frequency ratios: 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8
Fully integrated PLL
Cycle-to-cycle jitter: 45ps (maximum)
Output skew: 65ps (maximum)
Static phase offset: 50 ± 150ps (3.3V ± 5%)
Full 3.3V or 2.5V operating supply
5V tolerant inputs
Available in both standard (RoHS5) and lead-free (RoHS 6)
packages
-40°C to 85°C ambient operating temperature
HiPerClockS
ICS
BLOCK DIAGRAM
PIN ASSIGNMENT
ICS87004I
24-Lead TSSOP
4.40mm x 7.8mm x 0.92mm
G Package
Top View
PLL_SEL
CLK0
nCLK0
CLK1
nCLK1
CLK_SEL
FB_IN
SEL0
SEL1
SEL2
SEL3
MR
Q0
Q1
Q2
Q3
PLL
8:1, 4:1, 2:1, 1:1,
1:2, 1:4, 1:8
÷2, ÷4, ÷8, ÷16,
÷32,÷64, ÷128
0
1
0
1
GND
Q0
VDDo
SEL0
SEL1
SEL2
SEL3
CLK_SEL
VDD
CLK0
nCLK0
GND
1
2
3
4
5
6
7
8
9
10
11
12
Q1
VDDO
Q2
GND
Q3
VDDO
MR
FB_IN
PLL_SEL
CLK1
nCLK1
VDDA
24
23
22
21
20
19
18
17
16
15
14
13
相關(guān)PDF資料
PDF描述
ICS87004AGI 87004 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
ICS87004AGILF 87004 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
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ICS87004AGT 87004 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
ICS87004AG 87004 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
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