ISM95-2356CH-20.000 datasheet, PDF

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ISM95-2356CH-20.000: DescriptionHCMOS/TTL Output Clock Oscillator, 20MHz Nom, SMD, 4 PIN; CategoryPassive components oscillator; File Size118KB，2 Pages; ManufacturerILSI; Websitehttp://www.ilsiamerica.com; Environmental Compliance

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ISM95-2356CH-20.000 Overview

HCMOS/TTL Output Clock Oscillator, 20MHz Nom, SMD, 4 PIN

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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

802.11 / Wifi

T1/E1, T3/E3

System Clock

2.5

2.0

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-60 MHz

Max Integrated

1 MHz-60 MHz

Max Total Jitter

1 MHz-60 MHz

1.000 MHz to 60.000 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. N.C. or

≥

70% Vdd = Enable.

≤

30% Vdd = Disable.

Recommended Pad Layout

0.6

See Input Voltage Table, tolerance ±5 %

25 mA Max. ***

See Operating Temperature Table in Part Number Guide

-55

C to +125

5 pS RMS (1 sigma) Max. accumulated jitter (20K adjacent periods)

1.5 pS RMS (1 sigma -12KHz to 20MHz)

50 pS p-p (100K adjacent periods)

Connection

Enable

GND

Output

Vcc

Dimension Units: mm

Part Number Guide

Package

SM95 -

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

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

ISM95 - 3251BH - 20.000

Output

1 = 10TTL / 15 pF HC-MOS

6 = 30 pF

5 = 50 pF HC-MOS (<40 MHz)

Symmetry

(Duty Cycle)

5 = 45 / 55 Max.

6 = 40 / 60 Max.

Stability

(in ppm)

**A =

±25

B =

±50

C =

±100

Enable /

Disable

H = Enable

O = N/C

Frequency

- 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.

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

Page 1

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