SM7745HSV-25.0M [PLETRONICS]

CMOS Output Clock Oscillator, 25MHz Nom, LEAD FREE, CERAMIC, LEADLESS PACKAGE-4;


型号：	SM7745HSV-25.0M
厂家：	PLETRONICS, INC.
描述：	CMOS Output Clock Oscillator, 25MHz Nom, LEAD FREE, CERAMIC, LEADLESS PACKAGE-4 机械振荡器
文件：	总1页 (文件大小：81K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Pl tronics, Inc.

19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA

Manufacturer of High Quality Frequency Control Products

SM7745H CMOS Series

CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V)

Fundamental or 3rd Overtone Crystal Used

–

1.500 MHz 69.999 MHz

4 Pad 7 x 5mm Leadless Surface Mount Ceramic Clock Oscillator

Standard Specifications

Overall Frequency Stability

SM7745H: ± 50 PPM, SM7744H: ± 25 PPM, SM7720H: ± 20 PPM over Operating Temp. Range

Operating Temperature Range 0 to +70 C is standard, but OTR can be extended to - 40 to +85°C for certain frequencies

Supply Voltage (Vcc)

Symmetry (Duty Cycle)

Logic Levels

5.0 volts, 3.3 volts and 2.5 volts available, .01 μF bypass cap recommended

40/60 to 60/40% is standard, but 45/55% at 50% of Vcc is also available (see Waveform 1)

Logic “1” 90% of Vcc MIN; Logic “0” 10% of Vcc MAX

Output Load

Enable/Disable Option (E/D)

Standard load is 15 pF (typ. 1 ASIC) maximum, see Test Circuit 2 (consult factory for heavier loads)

Output enabled when Pin #1 is open or at Logic “1”; Output disabled when Pin #1 is at Logic “0”.

Max. Rise and Fall Time

Max. Supply Current

Icc (mA) w/ 15pF load Tr & Tf (nS) w/ 15pF load

Frequency Range

(MHz)

2.5V, 3.3V

5.0V

2.5V to 5.0V

–

1.500 10.999

5.0

4.5

–

11.000 23.999

–

24.000 29.999

–

30.000 45.999

–

46.000 69.999

Part Numbering Guide

Portions of the part number that appear after the frequency may not be marked on part (C of C provided)

SM77 45 H E V - 50.0M - SB - 30 - XXX (Internal Code or blank)

Packaging

Tray or

16mm tape

8mm pitch

Non-Std Output Load Blank = 15 pF max, 30 = 30 pF max

Optional Stand By Mode (3.3 volt only)

Frequency in MHz

Model

Frequency Stability

45 = ± 50 PPM

44 = ± 25 PPM

20 = ± 20 PPM

Supply Voltage (Vcc)

Part Marking for Vcc

Y or blank: 5.0V ± 10%

V: 3.3 volts ±10%

W: 2.5 volts ± 5%

Blank or A, F or Y

A, B, D, F or V

B, C, D, F or W

Special Specifications (choose all that apply)

Blank: Standard specs per above

E: Extended OTR (- 40 to +85°C)

S: 45/55% Symmetry at 50% of Vcc

Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned.

Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load

Mechanical: inches (mm)

not to scale

Solder Pads

Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code.

0.200 (5.08)

0.276 (7.0 ± .15)

PIN SIGNAL

0.004 (0.10)

0.050 (1.27)

E/D or SB

GND

OUT

0.087 (2.2)

0.079 (2.0)

.01 mF

bypass

capacitor

Vcc

0.055

(1.4)

0.024

(0.60)

0.075 (1.9)

MAX

0.200 (5.08)

0.055 0.145

(1.4)

(3.68)

Jan 2006

Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com

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