EEWORLDEEWORLDEEWORLD

Part Number

Search

40002A01

Description
FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
File Size190KB,12 Pages
ManufacturerICS ( IDT )
Websitehttp://www.icst.com
Download Datasheet Compare View All

40002A01 Overview

FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS840002-01
F
EMTO
C
LOCKS
™ C
RYSTAL
-
TO
-
LVCMOS/LVTTL F
REQUENCY
S
YNTHESIZER
F
EATURES
• Two LVCMOS/LVTTL outputs @ 3.3V,
17Ω typical output impedance
• Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
• Output frequency range: 56MHz - 175MHz
• VCO range: 560MHz - 700MHz
• Output skew: 12ps (maximum)
• RMS phase jitter at 156.25MHZ (1.875MHz - 20MHz):
0.47ps (typical)
Phase noise:
Offset
Noise Power
100Hz ............... -97.4 dBc/Hz
1kHz .............. -120.2 dBc/Hz
10kHz .............. -127.6 dBc/Hz
100kHz .............. -126.1 dBc/Hz
• Full 3.3V or 3.3V core/2.5V output supply mode
• -30°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS compliant
packages
G
ENERAL
D
ESCRIPTION
The ICS840002-01 is a 2 output LVCMOS/LVTTL
Synthesizer optimized to generate Ethernet
HiPerClockS™
reference clock frequencies and is a member of
the HiPerClocks
TM
family of high performance
clock solutions from ICS. Using a 25MHz 18pF
parallel resonant crystal, the following frequencies can be
generated based on the 2 frequency select pins (F_SEL1:0):
156.25MHz, 125MHz, and 62.5MHz. The ICS840002-01 uses
ICS’ 3
rd
generation low phase noise VCO technology and can
achieve 1ps or lower typical random rms phase jitter, easily
meeting Ethernet jitter requirements. The ICS840002-01 is
packaged in a small 16-pin TSSOP package.
IC
S
F
REQUENCY
S
ELECT
F
UNCTION
T
ABLE
Inputs
F_SEL1 F_SEL0
0
0
1
1
0
1
0
1
M Divider Value
25
25
25
25
Output Frequency
(25MHz Ref.)
N Divider Value
4
5
10
5
156.25
125
62.5
125
B
LOCK
D
IAGRAM
OE
Pullup
F_SEL1:0 Pullup:Pullup
nPLL_SEL Pulldown
nXTAL_SEL
XTAL_IN
Pulldown
25MHz
P
IN
A
SSIGNMENT
2
F_SEL0
nXTAL_SEL
TEST_CLK
OE
MR
nPLL_SEL
V
DDA
V
DD
Q0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
F_SEL1
GND
GND
Q0
Q1
V
DDO
XTAL_IN
XTAL_OUT
OSC
XTAL_OUT
TEST_CLK Pulldown
0
F_SEL1:0
1
Phase
Detector
00
01
10
11
1
VCO
0
N
÷4
÷5
÷10
÷5
ICS840002-01
Q1
M = ÷25 (fixed)
16-Lead TSSOP
4.4mm x 5.0mm x 0.92mm
package body
G Package
Top View
MR
840002AG-01
Pulldown
www.icst.com/products/hiperclocks.html
REV. B JANUARY 13, 2006
1

40002A01 Related Products

40002A01 ICS840002-01 ICS840002AG-01T ICS840002AG-01 0002A01L ICS840002AG-01LFT ICS840002AG-01LF
Description FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ARM processor system initialization process
This question is excerpted from the book "Practical Guide to Linux Kernel Development in Embedded Systems (ARM Platform)". Every time the system is powered on/reset, the processor is in a state of min...
cd001 ARM Technology
[Lao Gao recommends] A selection of e-books
[align=center][/align] To celebrate the Dragon's Rising, Lao Gao has selected a number of e-books that have received high praise from netizens and would like to share them with you. [url=https://downl...
高进 Download Centre
ADS1258, CLKIO has no output
ADS1258, CLKSEL is set low, START PWDN is set high, and everything else is handled according to the manual. Now only one of the 6 boards has output, and only channels 2, 4, 6, and 8 have output (8-way...
actall Analogue and Mixed Signal
Basic knowledge of embedded Linux development
In embedded development, some basic skills are required. In fact, these skills are relatively low-level. First of all, you need to master a language, C. With C as a foundation, you are basically halfw...
cdhqyj Linux and Android
Microchip Award Live: How to Get the Most Out of Zero-Drift Op Amps
[size=4]Event Details >> [url=https://www.eeworld.com.cn/huodong/Microchip-Webinar-20180514/][color=#0000ff][b]Microchip Award-winning Live Broadcast: How to Make the Most of Zero-Drift Operational Am...
EEWORLD社区 Analog electronics
The AD conversion result controls the duty cycle of the PWM wave. Why is the PWM wave always vcc?
As the AD conversion result changes, the value of register CCR1 changes....
闪闪___ MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1037  1891  269  1412  1091  21  39  6  29  22 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号