SM7744DESV-70.0M-30 [PLETRONICS]

Oscillator, 70MHz Min, 170MHz Max, 70MHz Nom;


型号：	SM7744DESV-70.0M-30
厂家：	PLETRONICS, INC.
描述：	Oscillator, 70MHz Min, 170MHz Max, 70MHz Nom
文件：	总1页 (文件大小：39K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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

SM7745D Series

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

CMOS with Enable/ Disable, 3rd Overtone Crystal Used

Low Jitter

–

70.00 MHz 170.00 MHz

Consult factory for higher frequencies

Standard Specifications

Overall Frequency Stability

SM7745D: ± 50 PPM, SM7744D: ± 25 PPM, SM7720D: ± 20 PPM over Operating Temp. Range

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

Supply Voltage (Vcc)

Symmetry (Duty Cycle)

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 Levels

Jitter

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

1 pS RMS maximum, from 12 kHz to 20 MHz from carrier

Output Load

Enable/Disable Option (E/D)

Standard load is 15pF 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”.

Rise and Fall Time

Tr & Tf (nS) w/ 15pF load

Supply Current

Icc (mA) w/ 15pF load

Frequency Range

(MHz)

Typical

40.0

Maximum

45.0

Typical

2.0

Maximum

3.0

–

70.000 79.999

–

80.000 110.000

75.0

80.0

0.5

1.0

–

110.001 119.999

80.0

90.0

0.5

1.0

–

120.000 170.000

90.0

95.0

0.5

1.0

Part Numbering Guide

SM77 45 D Y -- 70.0M - 30

Packaging

Tray or

16mm tape

8mm pitch

Non-Std Output Load

Model

Blank = 15 pF max, 30 = 30 pF max, 50 = 50 pF max

Frequency in MHz

Frequency Stability

45 = ± 50 PPM

Special Specifications (choose all that apply)

44 = ± 25 PPM

Y: Std Specs (5.0V ± 10%, 0 to +70 C, 40/60% Symmetry)

20 = ± 20 PPM

E: Extended Operating Temperature Range (- 40 to +85 C)

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

V: Supply Voltage of 3.3 volts ± 10%

± 5%

W: Supply Voltage of 2.5 volts

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:

not to scale

inches (mm)

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.

.09 (2.2)

OUT

GND

0.01m F

bypass capacitor

.07 (1.8)

E/D

Vcc

.197 (5.0 ± .2)

.075 (1.9)

MAX

.08 (2.0)

Feb 2002

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

Pl tronics, Inc.