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ISM91-2656BH-40.000

Description
HCMOS/TTL Output Clock Oscillator, 40MHz Nom, SMD, 4 PIN
CategoryPassive components    oscillator   
File Size63KB,2 Pages
ManufacturerILSI
Websitehttp://www.ilsiamerica.com
Environmental Compliance  
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ISM91-2656BH-40.000 Overview

HCMOS/TTL Output Clock Oscillator, 40MHz Nom, SMD, 4 PIN

ISM91-2656BH-40.000 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerILSI
Reach Compliance Codecompliant
Other featuresENABLE/DISABLE FUNCTION; TR, 7/10 INCH
Frequency Adjustment - MechanicalNO
frequency stability50%
JESD-609 codee4
Installation featuresSURFACE MOUNT
Nominal operating frequency40 MHz
Maximum operating temperature70 °C
Minimum operating temperature-10 °C
Oscillator typeHCMOS/TTL
Output load30 pF
physical size7.0mm x 5.0mm x 1.6mm
Maximum supply voltage2.835 V
Minimum supply voltage2.565 V
Nominal supply voltage2.7 V
surface mountYES
maximum symmetry45/55 %
Terminal surfaceGold (Au) - with Nickel (Ni) barrier
5 mm x 7 mm Ceramic Package SMD Oscillator, TTL / HC-MOS
ISM91 Series
Product Features:
Low Jitter, Non-PLL Based Output
CMOS/TTL Compatible Logic Levels
Compatible with Leadfree Processing
Applications:
Fibre Channel
Server & Storage
Sonet /SDH
802.11 / Wifi
T1/E1, T3/E3
System Clock
Frequency
Output Level
HC-MOS
TTL
Duty Cycle
Rise / Fall Time
Output Load
Frequency Stability
Start-up Time
Enable / Disable
Time
Supply Voltage
Current
Operating
Storage
Jitter:
RMS(1sigma)
1 MHz-75 MHz
76 MHz-170 MHz
Max Integrated
1 MHz-75 MHz
76 MHz-170 MHz
Max Total Jitter
1 MHz-75 MHz
76 MHz-170 MHz
1 MHz to 170.000 MHz
‘0’ = 0.1 Vcc Max., ‘1’ = 0.9 Vcc Min.
‘0’ = 0.4 VDC Max., ‘1’ = 2.4 VDC Min.
Specify 50% ±10% or ±5% See Table in Part Number Guide
5 nS Max. @ Vcc = +3.3 VDC, 10 nS Max. @ Vcc = +5 VDC ***
Fo < 50 MHz = 10 TTL, Fo > 50 MHz = 5 LSTTL See Table in Part
Number Guide
See Frequency Stability Table (Includes room temperature tolerance and
stability over operating temperature)
10 mS Max.
100 nS Max.
See Input Voltage Table, tolerance ±5 %
70 mA Max. ***
See Operating Temperature Table in Part Number Guide
-55 C to +125 C
Recommended
Pad Layout
(Top View)
5 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)
3 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)
1.5 pS RMS (1 sigma -12KHz to 20MHz)
1 pS RMS (1 sigma -12KHz to 20MHz)
50 pS p-p (100K adjacent periods)
30 pS p-p (100K adjacent periods)
Pin
1
2
3
4
Connection
Enable / Disable
Ground
Output
Vdd
Dimension Units: mm
Part Number Guide
Package
Input
Voltage
5 = 5.0 V
3 = 3.3 V
7 = 3.0 V
2 = 2.7 V
6 = 2.5 V
1 = 1.8 V*
Sample Part Number:
Operating
Temperature
1 = 0 C to +70 C
6 = -10 C to +70 C
3 = -20 C to +70 C
4 = -30 C to +75 C
2 = -40 C to +85 C
ISM91 - 3251BH - 20.000
Output
1 = 10TTL / 15 pF HC-MOS
5 = 50 pF HC-MOS (<40 MHz)
6 = 30 pF
Symmetry
(Duty Cycle)
5 = 45 / 55 Max.
6 = 40 / 60 Max.
Stability
(in ppm)
**E = 10
**D = 15
**F =
20
A = 25
B = 50
C = 100
Enable /
Disable
H = Enable
O = N/C
Frequency
I
SM91 -
- 20.000 MHz
NOTE: A 0.01 µF bypass capacitor is recommended between Vcc (pin 4) and GND (pin 2) to minimize power supply noise.
* Not available at all frequencies. ** Not available for all temperature ranges. *** Frequency, supply, and load related parameters.
e-mail@ilsiamerica.com
www.ilsiamerica.com
ILSI
America
Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com
06/09_B
Specifications subject to change without notice
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