参数资料
型号: ICS84021AYLFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟产生/分配
英文描述: 260 MHz, OTHER CLOCK GENERATOR, PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP-32
文件页数: 1/17页
文件大小: 359K
代理商: ICS84021AYLFT
84021AY
www.icst.com/products/hiperclocks.html
REV. C JUNE 9, 2005
1
Integrated
Circuit
Systems, Inc.
ICS84021
260MHZ, CRYSTAL-TO-LVCMOS / LVTTL
FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS84021 is a general purpose, Crystal-to-
LVCMOS/LVTTL High Frequency Synthesizer
and a member of the HiPerClock S family of
High Performance Clock Solutions from ICS.
The ICS84021 has a selectable TEST_CLK or
crystal input. The VCO operates at a frequency range of
620MHz to 780MHz. The VCO frequency is programmed
in steps equal to the value of the input reference or crystal
frequency. The VCO and output frequency can be
programmed using the serial or parallel interface to the
configuration logic.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
2 LVCMOS/LVTTL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 103.3MHz to 260MHz
Crystal input frequency range: 14MHz to 40MHz
VCO range: 620MHz to 780MHz
Parallel or serial interface for programming counter
and output dividers
RMS period jitter: 4.3ps (typical) (N ÷ 4, V
DDO = 3.3V ± 5%)
RMS phase jitter at 155.52MHz, using a 38.88MHz crystal
(12kHz to 20MHz): 2.88ps (typical)
Phase noise: 155.52MHz
Offset
Noise Power
100Hz ................. -93.7 dBc/Hz
1KHz ............... -111.3 dBc/Hz
10KHz ............... -120.4 dBc/Hz
100KHz ............... -125.1 dBc/Hz
Full 3.3V or mixed 3.3V core/2.5V or 1.8V supply voltage
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
Lead-Free package fully RoHS compliant
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
XTAL_OUT
TEST_CLK
XTAL_SEL
VDDA
S_LOAD
S_DATA
S_CLOCK
MR
M5
M6
M7
M8
N0
N1
nc
GND
Q0
Q1
V
DDO
OE0
OE1
V
DD
TEST
XT
AL_IN
nP_LO
A
D
VCO_SEL
M0
M1
M2
M3
M4
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS84021
HiPerClockS
ICS
OSC
OE0
OE1
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
VCO
PLL
Q0
Q1
TEST
CONFIGURATION
INTERFACE
LOGIC
÷ M
0
1
0
1
PHASE DETECTOR
÷3
÷4
÷5
÷6
MR
DATA SHEET
ICS84021
IDT / ICS 260MHZ, CRYSTAL-TO-LVCMOS LVTTL FREQUENCY SYNTHESIZER
ICS84021
1
260MHZ, CRYSTAL-TO-LVCMOS
LVTTL FREQUENCY SYNTHESIZER
相关PDF资料
PDF描述
ICS84021AY 260 MHz, OTHER CLOCK GENERATOR, PQFP32
ICS84021AYT 260 MHz, OTHER CLOCK GENERATOR, PQFP32
ICS84025EMLF 125 MHz, OTHER CLOCK GENERATOR, PDSO24
ICS8402AYT 350 MHz, OTHER CLOCK GENERATOR, PQFP32
ICS840S07BYILFT 167.67 MHz, OTHER CLOCK GENERATOR, PQFP32
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参数描述
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ICS84025EM 制造商:ICS 制造商全称:ICS 功能描述:CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER WITH FANOUT BUFFER