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ISM91-2251BO-20.000 Datasheet(PDF) 1 Page - ILSI America LLC

Part # ISM91-2251BO-20.000
Description  5 mm x 7 mm Ceramic Package SMD Oscillator, TTL / HC-MOS
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Manufacturer  ILSI [ILSI America LLC]
Direct Link  http://www.ilsiamerica.com
Logo ILSI - ILSI America LLC

ISM91-2251BO-20.000 Datasheet(HTML) 1 Page - ILSI America LLC

  ISM91-2251BO-20.000 Datasheet HTML 1Page - ILSI America LLC ISM91-2251BO-20.000 Datasheet HTML 2Page - ILSI America LLC  
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5 mm x 7 mm Ceramic Package SMD Oscillator, TTL / HC-MOS
ISM91 Series
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
Page 1
Pin
Connection
1
Enable / Disable
2
Ground
3
Output
4
Vdd
Dim ension Units: mm
Recom m ended
Pad Layout
(Top View)
Product Features:
Applications:
Low Jitter, Non-PLL Based Output
Fibre Channel
CMOS/TTL Compatible Logic Levels
Server & Storage
Compatible with Leadfree Processing
Sonet /SDH
802.11 / Wifi
T1/E1, T3/E3
System Clock
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.
Frequency
1 MHz to 170.000 MHz
Output Level
HC-MOS
TTL
‘0’ = 0.1 Vcc Max., ‘1’ = 0.9 Vcc Min.
‘0’ = 0.4 VDC Max., ‘1’ = 2.4 VDC Min.
Duty Cycle
Specify 50% ±10% or ±5% See Table in Part Number Guide
Rise / Fall Time
5 nS Max. @ Vcc = +3.3 VDC, 10 nS Max. @ Vcc = +5 VDC ***
Output Load
Fo < 50 MHz = 10 TTL, Fo > 50 MHz = 5 LSTTL
See Table in Part
Number Guide
Frequency Stability
See Frequency Stability Table (Includes room temperature tolerance and
stability over operating temperature)
Start-up Time
10 mS Max.
Enable / Disable
Time
100 nS Max.
Supply Voltage
See Input Voltage Table, tolerance ±5 %
Current
70 mA Max. ***
Operating
See Operating Temperature Table in Part Number Guide
Storage
-55° C to +125° C
Jitter:
RMS(1sigma)
1 MHz-75 MHz
76 MHz-170 MHz
5 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)
3 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)
Max Integrated
1 MHz-75 MHz
76 MHz-170 MHz
1.5 pS RMS (1 sigma -12KHz to 20MHz)
1 pS RMS (1 sigma -12KHz to 20MHz)
Max Total Jitter
1 MHz-75 MHz
76 MHz-170 MHz
50 pS p-p (100K adjacent periods)
30 pS p-p (100K adjacent periods)
Part Number Guide
Sample Part Number:
ISM91 - 3251BH - 20.000
Package
Input
Voltage
Operating
Temperature
Symmetry
(Duty Cycle)
Output
Stability
(in ppm)
Enable /
Disable
Frequency
ISM91 -
5 = 5.0 V
1 = 0
° C to +70° C
5 = 45 / 55 Max.
1 = 10TTL / 15 pF HC-MOS
**E =
±10
H = Enable
- 20.000 MHz
3 = 3.3 V
6 = -10
° C to +70° C
6 = 40 / 60 Max.
5 = 50 pF HC-MOS (<40 MHz)
**D =
±15
O = N/C
7 = 3.0 V
3 = -20
° C to +70° C
6 = 30 pF
**F =
±20
2 = 2.7 V
4 = -30
° C to +75° C
A =
±25
6 = 2.5 V
2 = -40
° C to +85° C
B =
±50
1 = 1.8 V*
C =
±100


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