MC OV-7605-C8 Instructions for use

OV-7605-C8
Application Manual
June 2017 1/20 Rev. 1.0
Application
Manual
OV-7605-C8
Low Power Clock Oscillator
32.768 kHz

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 2/20 Rev. 1.0
TABLE OF CONTENTS
1. OVERVIEW..................................................................................................................................................... 3
GENERAL DESCRIPTION......................................................................................................................... 31.1.
APPLICATIONS......................................................................................................................................... 31.2.
ORDERING INFORMATION...................................................................................................................... 41.3.
2. BLOCK DIAGRAM .........................................................................................................................................5
PINOUT ...................................................................................................................................................... 52.1.
PIN DESCRIPTION .................................................................................................................................... 52.2.
DEVICE PROTECTION DIAGRAM ........................................................................................................... 62.3.
3. ELECTRICAL SPECIFICATIONS..................................................................................................................7
ABSOLUTE MAXIMUM RATINGS............................................................................................................ 73.1.
OPERATING PARAMETERS.................................................................................................................... 73.2.
TYPICAL CHARACTERISTICS................................................................................................................. 83.3.
TIMING WAVEFORMS .............................................................................................................................. 83.4.
OSCILLATOR PARAMETERS.................................................................................................................. 93.5.
XTAL FREQUENCY VS. TEMPERATURE CHARACTERISTICS .....................................................9
3.5.1.
4. PACKAGE .................................................................................................................................................... 10
DIMENSIONS AND SOLDER PAD LAYOUT.......................................................................................... 104.1.
RECOMMENDED THERMAL RELIEF .............................................................................................104.1.1.
MARKING AND PIN #1 INDEX................................................................................................................114.2.
5. MATERIAL COMPOSITION DECLARATION & ENVIRONMENTAL INFORMATION...............................12
HOMOGENOUS MATERIAL COMPOSITION DECLARATION ............................................................. 125.1.
MATERIAL ANALYSIS & TEST RESULTS ............................................................................................ 135.2.
RECYCLING MATERIAL INFORMATION .............................................................................................. 145.3.
ENVIRONMENTAL PROPERTIES & ABSOLUTE MAXIMUM RATINGS .............................................155.4.
6. APPLICATION INFORMATION ...................................................................................................................16
OPERATING OV-7605-C8....................................................................................................................... 166.1.
SOLDERING INFORMATION.................................................................................................................. 176.2.
HANDLING PRECAUTIONS FOR MODULES WITH EMBEDDED CRYSTALS ...................................186.3.
7. PACKING & SHIPPING INFORMATION.....................................................................................................19
8. COMPLIANCE INFORMATION ...................................................................................................................20
9. DOCUMENT REVISION HISTORY..............................................................................................................20

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 3/20 Rev. 1.0
OV-7605-C8
Low Power Clock Oscillator 32.768 kHz
1. OVERVIEW
Oscillator with built-in “Tuning Fork” crystal oscillating at 32.768 kHz
Very tight frequency tolerance: ±20 ppm
Excellent oscillator stability: < 3 ppm/V
High shock and vibration resistance
Wide operating voltage range: 1.6 V to 5.5 V
Very low power consumption: typ. 450 nA
Standard operating temperature range TA: -40 to +85°C
CLKOUT enable/disable
Low aging rate
Ultra-miniature ceramic SMT package, RoHS-compliant and 100% lead-free: 2.0 x 1.2 x 0.85 mm
Available for Medical Implantable applications
Automotive qualification according to AEC-Q200 available
GENERAL DESCRIPTION1.1.
The OV-7605-C8 combines an advanced very low power CMOS oscillator circuitry together with a 32.768 kHz
“tuning-fork” crystal in an ultra-miniature ceramic package. No external components are required. The very low
power consumption over a wide supply voltage and temperature range is the key feature of this product.
The frequency output on CLKOUT pin can be enabled/disabled by the CLKOE pin. The CLKOUT frequency is
enabled when CLKOE pin is connected to VDD. When the CLKOE pin is tied to GND the frequency is disabled and
the CLKOUT pin is high impedance (Hi-Z).
The OV-7605-C8 is available for Medical Implantable applications.
APPLICATIONS1.2.
The OV-7605-C8 oscillator module combines very low power consumption with a ultra-small ceramic package:
Smallest oscillator module (embedded XTAL) in a ultra-small 2.0 x 1.2 x 0.85 mm lead-free ceramic
package
Price competitive
The unique size and the competitive pricing make this product perfectly suitable for many applications:
Communication: IoT / Wearables / Wireless Sensors and Tags / Handsets
Automotive: M2M / Navigation & Tracking Systems / Dashboard / Tachometers / Engine Controller
Car Audio & Entertainment Systems
Metering: E-Meter / Heating Counter / Smart Meters / PV Converter / Utility metering
Outdoor: ATM & POS systems / Surveillance & Safety systems / Ticketing Systems
Medical: Glucose Meter / Health Monitoring Systems / Implantable
Safety: Security & Camera Systems / Door Lock & Access Control
Consumer: Gambling Machines / TV & Set Top Boxes / White Goods
Automation: PLC / Data Logger / Home & Factory Automation / Industrial and Consumer Electronics

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 4/20 Rev. 1.0
ORDERING INFORMATION1.3.
Example: OV-7605-C8 -20/+20ppm TA QC
Code
Operating temperature range
TA (Standard)
-40 to +85°C
Code
Qualification
QC (Standard)
Commercial Grade
QA
Automotive Grade AEC-Q200
QM
Medical Grade

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 5/20 Rev. 1.0
2. BLOCK DIAGRAM
OUTPUT
CONTROL
OSC
32.768 kHz
CRYSTAL
CLKOUT
CLKOE
VDD
GND
4
2
1
3
Hi-Z
PINOUT2.1.
PIN DESCRIPTION2.2.
Symbol
Pin #
Description
CLKOUT
1
Clock Output; push-pull; controlled by CLKOE. If CLKOE is HIGH (VDD), the CLKOUT pin drives the
square wave of 32.768 kHz. When CLKOE is tied to Ground, the CLKOUT pin is high impedance
(Hi-Z).
GND
2
Ground.
CLKOE
3
Input to enable the CLKOUT pin. If CLKOE is HIGH, the CLKOUT pin is in output mode. When
CLKOE is tied to Ground, the CLKOUT pin is high impedance (Hi-Z).
VDD
4
Power Supply Voltage.
OV-C8 Package: (top view)
7605
#1 #2
#4 #3
#1 CLKOUT
#2 GND
#3 CLKOE
#4 VDD

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 6/20 Rev. 1.0
DEVICE PROTECTION DIAGRAM2.3.
GND
VDD CLKOUT
CLKOE
2
1
3
4

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 7/20 Rev. 1.0
3. ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS3.1.
Absolute Maximum Ratings according to IEC 60134:
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNIT
VDD
Power supply voltage
-0.5
6.0
V
VI
Input voltage
-0.5
6.0
V
VO
Output voltage
-0.5
6.0
V
TOPRA
Standard operating temperature TA
-40
85
°C
TSTO
Storage temperature
Stored as bare product
-55
125
°C
TPEAK
Maximum reflow condition
JEDEC J-STD-020C
265
°C
OPERATING PARAMETERS3.2.
For this Table, VDD = 3.0 V; GND = 0 V; TA = 25 °C; unless otherwise indicated.
Operating Parameters:
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Supply
VDD
Power supply voltage
1.6
5.5
V
VDDSR
VDD slew rate
±0.5
V/ms
IDD
VDD Supply Current. CLKOUT
disabled. (1)
VDD = 3.0 V, TA= 25°C
450
650
nA
VDD = 5.0 V, TA= 25°C
680
900
VDD = 3.0 V, TA= -40 to 85°C
1300
VDD = 5.0 V, TA= -40 to 85°C
1800
Input CLKOE
VI
Input voltage
GND -0.5
VDD +0.5
V
VIL
LOW level input voltage
GND
0.3 VDD
V
VIH
HIGH level input voltage
0.7 VDD
VDD
V
Output CLKOUT
VOH
HIGH level output voltage
IOH = -400 µA, VDD = 1.6 to 5.5 V
VDD –0.4
V
VOL
LOW level output voltage
IOL = 400 µA, VDD = 1.6 to 5.5 V
GND +0.4
V
IOZ
Hi-Z leakage current
CLKOE = GND,
CLKOUT = VDD or GND
±100
nA
tr
Output rise time
CL= 10 pF, 10% to 90% VDD
30
70
ns
tf
Output fall time
CL= 10 pF, 10% to 90% VDD
30
70
ns
tCKH
CLKOUT enable time
(see following diagram)
0
0.5
µs
tCKL
CLKOUT disable time
(see following diagram)
0
µs
(1) When CLKOUT is enabled (CLKOE is HIGH) the additional VDD supply current ∆IDD can be calculated as follows: ∆IDD = CLx VDD x fOUT
e.g. ∆IDD = 10 pF x 3.0 V x 32’768 Hz = 980 nA

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 8/20 Rev. 1.0
TYPICAL CHARACTERISTICS3.3.
Supply current IDD vs. Supply voltage VDD: TA= 25°C, CLKOUT disabled
01234 5
VDD [V]
700
500
300
0
IDD [nA]
100
400
600
6
200
800
TIMING WAVEFORMS3.4.
CLKOUT enable/disable time:
32.768 kHz
CLKOUT
CLKOE
tCKH tCKL = 0
32.768 kHz
CLKOUT
CLKOE
tCKH = 0
Hi-Z Hi-Z
Hi-Z Hi-Z
tCKL = 0

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 9/20 Rev. 1.0
OSCILLATOR PARAMETERS3.5.
For this Table, VDD = 3.0 V; GND = 0 V; TA = 25 °C; unless otherwise indicated.
Oscillator Parameters:
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Xtal General
f
Crystal Frequency
32.768
kHz
tSTART
Oscillator start-up time
50
500
ms
δCLKOUT
CLKOUT duty cycle
40
60
%
Xtal Frequency Characteristics
Δf/f
Frequency accuracy
±10
±20
ppm
Δf/V
Frequency vs. voltage
characteristics
1.6 V ≤ VDD ≤ 5.5 V
±3
ppm/V
Δf/fTOPR
Frequency vs. temperature
characteristics
TOPR = -40°C to +85°C
VDD = 3.0 V
-0.035ppm/°C2(TOPR-T0)2 ±10%
ppm
T0
Turnover temperature
20
30
°C
Δf/f
Aging first year max.
±3
ppm
XTAL FREQUENCY VS. TEMPERATURE CHARACTERISTICS3.5.1.
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
20
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
∆f/f [ppm]
T0= 25°C (± 5°C)
-0.035 * (T-T0)2ppm (±10%)
Temperature [°C]

Micro Crystal
Low Power Clock Oscillator 32.768 kHz OV-7605-C8
June 2017 10/20 Rev. 1.0
4. PACKAGE
DIMENSIONS AND SOLDER PAD LAYOUT4.1.
OV-C8 Package:
Package dimensions (bottom view): Recommended solder pad layout:
0,85 max 1,2
0,450,45
2.0
0,45 0,45
12
43
0,3
0,7 1,1 0,7
0,70,7
Tolerances: unless otherwise specified ± 0.1mm
Drawing: OV-7605-C8_Pack-drw_20170323
All dimensions in mm typical.
RECOMMENDED THERMAL RELIEF4.1.1.
When connecting a pad to a copper plane, thermal relief is recommended.
GOOD BAD
PO