WF5025 series

NIPPON PRECISION CIRCUITS INC.—1

Crystal Oscillator Module ICs

OVERVIEW

the crystal's characteristics to reduce crystal current. The pad layout is arranged for flip chip mounting, which

gives the pattern design more flexibility, even for mounting ultra-miniature crystal oscillators that provide

almost no space for wiring patterns. They support fundamental oscillation and 3rd overtone oscillation modes.

The WF5025 series can be used to correspond to wide range of applications.

FEATURES

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Pad layout optimized for flip chip mounting

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Miniature-crystal matched oscillator characteristics

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Operating supply voltage range

• 2.5V operation: 2.25 to 2.75V

• 3.0V operation: 2.7 to 3.6V

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Recommended operating frequency range

• For fundamental oscillator

- WF5025AL

×: 20MHz to 50MHz

- WF5025BL1: 20MHz to 100MHz

• For 3rd overtone oscillator

- WF5025ML

×: 70MHz to 133MHz

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−40 to 85°C operating temperature range

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Oscillator capacitor with excellent frequency char-

acteristics built-in

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in for reduced crystal current

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Standby function

• High impedance in standby mode, oscillator

stops

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Low standby current

• Power-saving pull-up resistor built-in

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Oscillation detector function

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Frequency divider built-in (WF5025AL

×)

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CMOS output duty level (1/2VDD)

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50 ± 5% output duty @ 1/2VDD

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30pF output load

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Molybdenum-gate CMOS process

SERIES CONFIGURATION

Note. These versions in parentheses ( ) are under development. Please ask our Sales & Marketing section for further detail.

ORDERING INFORMATION

Version

Operating

supply voltage

[V]

Oscillation

mode

Recommended

operating frequency

range (fundamental

*1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscil-

lator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the

oscillation characteristics of components must be carefully evaluated.

Output

current

[mA]

Output

frequency

Output duty

level

Standby mode

Oscillator

stop

function

Output state

WF5025AL1

2.25 to 3.6

Fundamental

20 to 50

4

CMOS

Yes

Hi-Z

WF5025AL2

WF5025AL3

WF5025AL4

WF5025AL5

WF5025AL6

*2. The WF5025BL1 has a higher maximum operating frequency, hence the negative resistance is also larger than in the WF5025AL

× devices.

2.25 to 3.6

Fundamental

20 to 100

8

CMOS

Yes

Hi-Z

WF5025MLA

2.25 to 3.6

3rd overtone

70 to 80

CMOS

Yes

Hi-Z

(WF5025MLB)

80 to 100

WF5025MLC

90 to 133

Device

Package

WF5025

×××–3

Wafer form