EM7602V1SM4D [EMMICRO]

Low Power Clock Oscillator 32768 Hz; 低功耗时钟振荡器32768赫兹


型号：	EM7602V1SM4D
厂家：	EM MICROELECTRONIC - MARIN SA
描述：	Low Power Clock Oscillator 32768 Hz 低功耗时钟振荡器32768赫兹振荡器时钟
文件：	总2页 (文件大小：553K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

EM MICROELECTRONIC - MARIN SA

EM7602

Low Power Clock Oscillator 32768 Hz

The World’s Smallest Thermo-Compensated Oscillator

Dimensions

Package:

Recommended Solder Pad:

8.0

1.8

3.0

3.8

1.2

bottom view

top view

2.4

1.8

5.0

1.8

Pin Description:

max

1.75

1 = Output enable or NC

2 = Ground

side view

3 = Frequency Output

4 = V_DD

All dimensions in mm typical

Description

EM7602 is a low power, low frequency crystal oscillator, with a three

times better thermal drift than any conventional tuning fork crystal.

It consists of a torsional tuning fork crystal and a CMOS integrated

circuit, both assembled in the same package. It is ideal for applications

requiring a high timekeeping accuracy over full temperature range.

KEY FEATURES

ꢀ Temperature compensation

ꢀ Small SMD ceramic package

ꢀ Low power consumption of 6µA

ꢀ Tri state output

The oscillator are supplied in trays (91 oscillators per tray).

For pick-and-place equipment, the parts are available in 16mm tapes:

7” (178 mm) reel with 1000 oscillators

10” (254 mm) reel with 2000 oscillators

13” (330 mm) reel with 4000 oscillators

& BENEFITS

ü Save space and components

ü No more matching of quartz with IC

ü Easy PCB design

ü No more trouble with stray capacitors

ü High shock and vibration resistance

Electrical Characteristics at 25°C

Output Frequency

Frequency tolerance

Supply voltage

(note 1) ∆F/F

V_DD

32.768

±30

kHz

ppm

2.3 – 3.6

6/10

49/51

V_DD- 0.4

0.4

Current Consumption (typ/max) (note 2)

I_DD

µA

Duty cycle (min/max)

ü No need for external trimming

Output voltage (high)

Output voltage (low)

Output rise time (max)

Output fall time (max)

Start up time

(note 3)

(note 4)

(note 5)

V_OH

V_OL

t_r

components

100

t_f

100

t_start

Typical Applications

Voltage coefficient

±1

ppm/V

°C

ꢀ Clock drivers for Real Time Clocks

Turnover temperature (typ)

T₀

ꢀ Timekeeping in network servers and

Temperature coefficient (typ)

Frequency stability (typ)

0°C to +50°C

-0.012

ppm/°C²

computers

ꢀ Data logger

0 to -10

0 to -30

0 to -50

ppm

∆F/F

ꢀ Electricity, gas and water metering

ꢀ Portable field communication

ꢀ Automotive dashboard

ꢀ High-end mobile phones

-20°C to +70°C

-40°C to +85°C

Note 1: Tighter tolerance on request

Note 2: V_DD= 3.3V, no load

Note 3: I_OH= -0.5mA

Note 4: I_OL= 0.5mA

Note 5: C_L= 15pF, 10% to 90%

Phone: +41.32.755-5111, Fax: +41.32.755-5403

www.emmicroelectronic.com

Subject to change without notice

Rev. C, 07/2003

info@emmicroelectronic.com

EM7602

Output Wave Form:

V_DD

V_OH

V_OL

t_r

t_f

Conditions

Max. Dev.

Environmental Characteristics:

Storage temp. range

-55°C to +125°C

-40°C to +85°C

Industrial operating temp. range

Shock resistance

∆F/F 5000 g, 0.3 ms, ½ sine ±5 ppm

Vibration resistance

∆F/F

20 g / 10-2000 Hz

±5 ppm

Ordering Information,

Part Nb

Termination

Delivery Form

Tray (91 pieces)

Tape & Reel (min. 1000 pieces)

Terminations and Processing:

EM7602V1SM4D

For SMD mounting

EM7602V1SM4B Au (gold) flashed pads

Processing is by reflow soldering at 260°C / 20 s max.

Note: Instead of Au (gold) flashed pads, Sn (tin) plated pads are also available

for SMD mounting, subject to availability and minimum order quantity.

Please contact EM Microelectronic for availability of Sn (tin) plated pads

and refer to EM7602V2 (version 2). For samples, only EM7602V1 is

available at all times.

Frequency Temperature

Characteristics:

20.0

0.0

-20.0

-40.0

-60.0

-80.0

-100.0

-120.0

-140.0

-160.0

-180.0

-60

-40

-20

100

T [°C]

Conventional Tuning Fork

EM7602 Oscillator

Phone: +41.32.755-5111, Fax: +41.32.755-5403

www.emmicroelectronic.com

Subject to change without notice

Rev. C, 07/2003

info@emmicroelectronic.com

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