OV7604C7-B Просмотр технического описания (PDF) - Golledge Electronics Ltd

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OV7604C7-B

CMOS Oscillator Low Power

Golledge Electronics Ltd 

CMOS Oscillator Low Power

OV7604C7

3.30

(max)

1.60

(max)

1.00

(max)

ACTUAL SIZE

SOLDER PAD LAYOUT

1.70

12

43

0.75

0.50

0.40

0.75

1.00 1.00

TOP VIEW

PAD CONNECTION

1 Output

2 Ground

3 Enable/Disable

4 Supply

0.80

Scale 3:1

Features

« Very low power consumption

« Tight frequency tolerance

« Industrial and extended temperature ranges

« High shock and vibration resistance

« World’s smallest LF oscillator

Block Diagram

32.768kHz

4 CRYSTAL

VDD

2

OSC

GND

1

CLKOUT

3

CLKOE

OUTPUT

CONTROL

Enable / Disable Function

Input (pad 3)

Output (pad 1)

‘1’ level

‘0’ level

Enabled

Disabled

Note: Pad 3 should not be allowed to float.

Specifications

Parameters

Frequency:

32.7680kHz

Product

OV7604C7

࡯

Calibration tolerance: ±10ppm

˿

(VDD = 3.0V)

±20ppm

࡯

Other

˿

Turnover temperature (T0):

+25°C ±5°C

࡯

Frequency / temp coefficient:

-0.035ppm/°C2 ±10%

࡯

Operating temperature range:

-40 to +85°C

࡯

-55 to +125°C

˿

Storage temperature range:

-55 to +125°C

࡯

Supply voltage (VDD):

Operable from 1.2 ~ 5.5V

࡯

Supply current (backup mode):

0.3µA typ, 0.5µA max

࡯

(VDD = 3.0V, output disabled)

Logic levels: ‘0’ level = 0.4V max

࡯

‘1’ level = VDD-0.4V min

࡯

Waveform symmetry:

40:60 max @ 50%VDD

࡯

Driving ability:

15pF HCMOS

࡯

Voltage coefficient:

±1.5ppm/V max

࡯

Rise / fall time:

70ns max

࡯

Start up time: 500ms max @ 25°C

࡯

Enable / disable function:

Control via pad 3

࡯

Ageing: ±3ppm max first year @ 25°C

࡯

Shock and vibration resistance:

±5ppm, 5,000g, 0.3ms, s i n e

࡯

±5ppm, 20g, 10.0 ~ 2,000Hz

࡯

Soldering condition:

Reflow, 260°C, 20 sec max

࡯

࡯ Standard. ˿ Optional - Please specify required code(s) when ordering

Option

Codes

A

B

specify

M

Ordering Information

Product + option code

eg: OV7604C7/B ±20ppm (standard)

Option code X (eg OV7604C7/X) denotes a custom spec.

ͷ Available on T&R - 3k, 7k or 14k pcs per reel.

ͷ Refer to our website for T&R and soldering details.

Tel: +44 1460 256 100

09 Apr 2008

Fax: +44 1460 256 101

E-mail: sales@golledge.com

Web: www.golledge.com

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