2.0 mm x 2.5 mm Ceramic Package SMD Oscillator, TTL / HC-MOS
ISM95 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
2.5
802.11 / Wifi
T1/E1, T3/E3
System Clock
2.0
Frequency
1.000 MHz to 60.000 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
Output Load
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
Frequency Stability
Start-up Time
See Frequency Stability Table (Includes room temperature tolerance and
stability over operating temperature)
10 mS Max.
0.6
100 nS Max. N.C. or ≥ 70% Vdd = Enable. ≤ 30% Vdd = Disable.
Enable / Disable
Time
Recommended Pad Layout
Supply Voltage
See Input Voltage Table, tolerance ±5 %
25 mA Max. ***
Current
Operating
Storage
See Operating Temperature Table in Part Number Guide
-55° C to +125° C
Jitter:
RMS(1sigma)
1 MHz-60 MHz
5 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)
1.5 pS RMS (1 sigma -12KHz to 20MHz)
Pin Connection
1
2
3
4
Enable
GND
Output
Vcc
Max Integrated
1 MHz-60 MHz
Max Total Jitter
1 MHz-60 MHz
50 pS p-p (100K adjacent periods)
Dimension Units: mm
Part Number Guide
Sample Part Number:
ISM95 - 3251BH - 20.000
Output
Package
Input
Operating
Symmetry
(Duty Cycle)
5 = 45 / 55 Max.
6 = 40 / 60 Max.
Stability
(in ppm)
**A = ±25
B = ±50
Enable /
Disable
Frequency
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*
Temperature
1 = 0° C to +70° C
8 = -10° C to +60° 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
1 = 10TTL / 15 pF HC-MOS
6 = 30 pF
H = Enable
O = N/C
ISM95 -
- 20.000 MHz
5 = 50 pF HC-MOS (<40 MHz)
C = ±100
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.
ILSI America Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com
06/09_A
Specifications subject to change without notice
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