EM7602 Datasheet, PDF (1/2 Pages) EM Microelectronic - MARIN SA – Low Power Clock Oscillator 32768 Hz

EM MICROELECTRONIC - MARIN SA
EM7602
Low Power Clock Oscillator 32768 Hz
The World’s Smallest Thermo-Compensated Oscillator
Dimensions
Package:
8.0
1.2
1.2
1
2
bottom view
4
3
2.4
max
1.75
side view
All dimensions in mm typical
Recommended Solder Pad:
3.0
3.8
1.8
top view
1.8
5.0
1.8
Pin Description:
1 = Output enable or NC
2 = Ground
3 = Frequency Output
4 = V_DD
KEY FEATURES
Temperature compensation
Small SMD ceramic package
Low power consumption of 6µA
Tri state output
& 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
ü No need for external trimming
components
Typical Applications
Clock drivers for Real Time Clocks
Timekeeping in network servers and
computers
Data logger
Electricity, gas and water metering
Portable field communication
Automotive dashboard
High-end mobile phones
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.
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
Electrical Characteristics at 25°C
Output Frequency
Frequency tolerance
(note 1)
Supply voltage
Current Consumption (typ/max) (note 2)
Duty cycle (min/max)
Output voltage (high)
(note 3)
Output voltage (low)
(note 4)
Output rise time (max)
(note 5)
Output fall time (max)
(note 5)
Start up time
Voltage coefficient
Turnover temperature (typ)
Temperature coefficient (typ)
Frequency stability (typ)
0°C to +50°C
-20°C to +70°C
-40°C to +85°C
F
∆F/F
VDD
IDD
VOH
VOL
tr
tf
tstart
T0
β
∆F/F
32.768
±30
2.3 – 3.6
6/10
49/51
VDD - 0.4
0.4
100
100
1
±1
20
-0.012
kHz
ppm
V
µA
%
V
V
ns
ns
s
ppm/V
°C
ppm/°C²
0 to -10 ppm
0 to -30 ppm
0 to -50 ppm
Note 1: Tighter tolerance on request
Note 2: VDD = 3.3V, no load
Note 3: IOH = -0.5mA
Note 4: IOL = 0.5mA
Note 5: CL = 15pF, 10% to 90%
Copyright  2003, EM Microelectronic-Marin SA
Subject to change without notice
Rev. C, 07/2003
Phone: [phone], Fax: [phone]
www.emmicroelectronic.com
[e-mail]