PRELIMINARY
Integrated
Circuit
Systems, Inc.
ICS8Mx3
Crystal Oscillator: LVPECL CLOCK OUTPUT
I C S 8 M x 3
LOW JITTER, HIGH FREQUENCY XTAL OSCILLATOR
• Stable, ultra low jitter, LVPECL clock generation
• For Gigabit Ethernet, Fibre Channel, PCI-Express, other applications
• Clock output frequencies from 75 to 750 MHz
• One differential LVPECL clock output
• Output Enable (OE) pin (tri-state – with ultra low current – when low)
• Small 6-pin 5 x 7 x 1.5mm SMT ceramic package
• Low profile package allows back-side PCB mounting
• Pb-free RoHS compliant (by default; no additional code required)
• 2.5V or 3.3V device power supply options
8Mx3
( T o p V ie w )
• Commercial (0 to +70 OC) and Industrial (-40 to +85 OC) temperatures
• Frequency stability of 50 or 100 ppm
(including initial accuracy, operating temperature variation,
supply voltage variation, load variation, reflow drift, and aging for 10 years)
6-pin CERHERMETIC 5 x 7 x 1.5mm SMT
• Low phase jitter < 1 ps rms maximum (12kHz to 20MHz)
ELECTRICAL SPECIFICATIONS
Unless stated otherwise, VCC = 2.5 Volts + 5% or 3.3 Volts + 5%, TA = 0 oC to +70 oC (commercial), TA = -40 oC to +85 oC (industrial)
Parameter
Min
Typ
Max
Unit
Conditions
DC CHARACTERISTICS
Power Supply Voltage
VCC
3.135
2.375
3.3
2.5
75
3.465
2.625
V
3.3V operation
2.5V operation
Power Supply
(VCC , VEE pins)
V
in 8MJ3 and 8MK3 only
Power Supply Current
IEE
mA
mA
pF
V
OE = VCC
OE = GND
Current with Output Disable IOED
<0.6
Input Capacitance
Input High Voltage
CIN
VIH
4
0.7 x VCC
-150
Output Enable
(OE pin)
LVCMOS/LVTTL
V
Input Low Voltage
VIL
0.3 x VCC
Input High Current
Input Low Current
IIH
5
µA
µA
kΩ
VCC = VIN = 2.625 or 3.465V
IIL
VCC = 2.625 or 3.465V, VIN = 0V
Internal Pull-up Resistor
RPULLUP
51
Output High Voltage1
Output Low Voltage1
Outputs terminated with 50Ω to VCC - 2V.
VOH
VOL
VCC - 1.4
VCC - 2.0
VCC - 0.9
VCC - 1.7
V
Clock Output
Level
(OUT, nOUT)
LVPECL
See PARAMETER MEASUREMENT INFORMATION, Output
Load AC Test Circuit diagrams.
V
Peak-to-Peak Output Voltage
Swing
See PARAMETER MEASUREMENT INFORMATION,
Output Rise and Fall Time diagram.
VSWING
0.6
75
1.0
V
AC CHARACTERISTICS
Output Frequency Range
750
±100
±50
MHz
All conditions
Output
(OUT, nOUT)
Frequency Stability error
∆f/fO
Includes frequency set,
ppm p-p
in 8MH3 and 8MK3
VCC, TA & load variation,
ppm p-p
%
in 8MG3 and 8MJ3
reflow drift, 10 yr. aging
Output Duty Cycle
Output Rise Time
Output Fall Time
odc
tR
50
See Output Duty Cycle diagram
and Rise and Fall Time diagram
in PARAMETER MEASUREMENT
INFORMATION.
600
600
10
ps
20% to 80% of VOH - VOL
20% to 80% of VOH - VOL
tF
ps
tOSC
ms
Time at Min. VCC (3.135V or 2.375V) to be 0s
(design target
Oscillator Start-up Time
RMS Phase Jitter, (Random) 2
< 1
design target
ps rms
)
t jit(Ø)
2
0.2
3
ps
ps
ps
ps
ps
Deterministic
tDS
Jitter
3
Random
σ
σ
of Random jitter
tRS
3
3
Root Mean Square
Peak to Peak
Accumulated Jitter
of Total jitter distribution
tRMS
3
25
4
tP-P
3
n = 2 to 50,000 cycles
tacc
Note 1: Outputs terminated with 50Ω to V - 2V. See PARAMETER MEASUREMENT INFORMATION, Output Load AC Test Circuit diagrams.
CC
Note 2: Measured using an Aeroflex PN9500 with a 12 kHz to 20MHz integration range.
Note 3: Measured using a Wavecrest SIA-3000.
SUPPLY VOLTAGE & FREQUENCY ACCURACY
G
H
J
=
=
=
=
3.3V
±50 ppm
± 100 ppm
± 50 ppm
± 100 ppm
3.3V
2.5V / 3.3V
2.5V / 3.3V
K
ICS8Mx3 Datasheet Rev A
Revised 30Nov2004
Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400
5秒后页面跳转
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
A4950资料手册解读：特性、应用、封装、引脚功能、电气参数及代换型号
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
