2765E Series Datasheet by NDK America, Inc.

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Crystal Clock Oscillator

- 85 -

13A_0730_2765E_e

Absolute maximum rating

Supply voltage (VCC) -0.5 to +7.0 V

Storage temperature range -55 to +125 °C

EMI Noise-reducing Type

2765E Series

2765E Overall frequency tolerance of ±100 x 10–6.

■ Model name

● Forcompactmobileinformationequipment,suchasPDAandnotebookPC

■ Application

Item Model 2765E

Output level CMOS

Nominal frequency range *1 (MHz) 20≤F≤80

Operating temperature range *2 (°C) –20 to +70

Overall frequency tolerance (×10–6) ±100

Supply voltage [VCC] (V) +3.3±0.3

Current consumption

(+3.3 V, 25 °C) max

During operation (mA) 30

During standby (μA) 30

VOL max/VOH min (V) 0.2 VCC/0.8 VCC

Tr max/Tf max (ns) 5/5 (0.2 VCC to 0.8 VCC)

Symmetry min. to max. (%) 40 to 60 (at 1/2 VCC)

Load (CL) max (pF) 15

Start-up time max (ms) 10

Standby function Available (Three-state)

Number for specifying an order NSA3393B

*1: If you require a product with a frequency not given above, please contact us. *2: If you require a product with an operating temperature range not given above, please contact us.

■ Specifications

5.0±0.2

1.2±0.1

2.54±0.1

3.2±0.2

1.0 ±0.2

1.2±0.1

1.0±0.1

#4 #3

C0.5

0.25±0.1 0.36±0.1

Mount an approx. 0.01 μF bypass capacitor between VCC and GND

(close to the product)

Terminal land connections

STAND-BY

GND

OUTPUT

VCC

Land pattern (Typical)

Cby=0.01μF 2.54

1.4

2.2

1.2

#4 #3

#2#1

■ Dimensions

0.8VDD

0.2VDD

1/2VDD

Tr Tf

VOH

VOL

Symmetry = t/T × 100 [%]

■ Output Waveform <CMOS>

#1 Input #3 Output

Level H (0.7 VCC≤VIH≤VCC)

or OPEN is selected. Oscillation output ON

Level L (VIL≤0.3VCC) is selected. High impedance

■ Spread Spectrum Characteristics

● Withaspreadspectrumfunctioninstalled,thiscrystaloscillatoreffectively

reduces EMI noise.

● Down-spreadingandcenter-spreading.

● Withastandbyfunctioninstalled,powerconsumptionisreduced.

■ Features

When ordering our products, specify them with an “Ordering Code” that consists of the following:

Model name

–

Frequency (up to 9 digits)

M –

Number for specifying an order

Example : When ordering a product with model name: 2765E, frequency: 20 MHz,

overall frequency tolerance: ±100 x 10–6, and supply voltage: 3.3 V

Ordering Code: 2765E – 20.000000M – NSA3393B

If you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales representatives or visit our homepage (http://www.ndk.com/).

■ How to Specify an Order

Spreading Type SpreadingRatio

Center spreading ±2.0 %

■ Standby Function

VCC