3EM831-128 [EUROQUARTZ]
CMOS Output Clock Oscillator,;
| 型号： | 3EM831-128 |
| 厂家： | 
EUROQUARTZ LIMITED |
| 描述： | CMOS Output Clock Oscillator, 振荡器 |
| 文件： | 总5页 (文件大小：396K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUARTZ
EURO
EME83 SERIES TCXO
32.768kHz
Low Power (nA Current Consumption)
FEATURES
EME83x is a 32.768kHz CMOS output TCXO with a maximum frequency stability of ±5ppm (±2.62
minutes / year) over the operating temperature range -40° to +85°C. This time-keeping accuracy is
outstanding in the industry.
A proprietary temperature compensation technique is applied to the built-in X-Cut 32.768kHz
tuning fork crystal and temperature sensor.
OUT
A 400nA current compensation (average f
operated devices.
≤128Hz, 4 min TMP.) makes it ideal for battery
The TCXO is packaged in a 7 x 5 x 1.8mm package, ideal for miniaturized applications.
Designed for long-term frequency reference applications.
APPLICATIONS
·
·
·
·
·
·
Frequency Reference for real time clocks (RTC).
Portable instrumentation.
Timing synchronization for networks, servers, hubs, routers and switches.
Timing Reference input for various energy metering ICs.
Smart metering, data loggers.
GPS receivers, telematics.
RELATED EUROQUARTZ PRODUCTS
·
·
If temperature compensation is not required please consider using Euroquartz HA series 32.768kHz (AT-CUT crystal, µA current
consumption, ±25/±50/±200ppm over commercial or industrial temperature ranges).
If tighter than ±5ppm frequency stability is required, i.e. ±1~±2.5ppm over -40° to +85°C, please consider use of EM572T
32.768kHz TCXO or VEM572T 32.768kHz VCTCO series. (All use AT-Cut crystals, mA current consumption.)
FREQUENCY-TEMPERATURE CHARACTERISTICS
EME83x, Temperature
Compensated.
∆f/f = ±5ppm max.
Not Temperature
Compensated.
2
o
∆f/f = -0.035(T -25)
Page 1 of 5
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
QUARTZ
EURO
EME83 SERIES TCXO
32.768kHz
Low Power (nA Current Consumption)
GENERAL SPECIFICATIONS (at 25°C and specified input voltage)
Product Series
EME831, EME832, EME833 and EME834
EME831
EME832
EME833
EME834
Every 4 minutes
(standard series)
Every 1 minute
Every 2 minutes
Every 30 seconds
Temperature Measurement
Period (TMP), Also known as
Compensation Interval.
Overall power consumption increases for more frequent measurement periods. For lowest power
consumption the 4 minute measurement period (model EME834) is recommended. For peak current
DD
during temperature measurement see I data below
Standard frequency: 32.768kHz
Frequency
Also available in 4.096kHz, 1.024kHz, 128Hz, 32Hz, 1Hz, 1/10Hz, 1/60Hz.
DD
1.7V minimum, 5.5V maximum
Supply Voltage (V ) Range
DD
1.8V ±5%
1.71V ~ 1.89V
18
2.5V ±5%
2.37V ~ 2.62V
25
3.0V ±5%
2.85V ~ 3.15V
3
3.3V ±5%
2.97V ~ 3.63V
33
5.0V ±5%
4.75V ~ 5.25V
5
(V
)
Supply
Voltages
DD
Tolerance
(V
)
Voltage Code
DD1
Supply Current (I ) Typical
Conditions: No load, 25°C,
OUT
0.79µA
1.95µA
1.05µA
2.0µA
1.25µA
2.03µA
1.37µA
2.05µA
2.05µA
2.14µA
f
= 32.768kHz
Peak Current during
DD2
Temperature Measurement (I
Typical. Conditions: No load, 25°C,
)
OUT
f
= 32.768kHz
DD3
Supply Current (I ) when Pad 1
is disabled. Typical
Conditions: No load, 25°C,
OUT
0.39µA
327nA
0.47µA
408nA
0.53µA
0.56µA
470nA
0.80µA
700nA
f
= 32.768kHz
DD4
Supply Current (I ) Typical
Conditions: No load, 25°C,
OUT
460nA
f
= 32Hz
O
Initial Calibration Tolerance
±1.5ppm maximum over -40° to +85°C w.r.t. f at +25°C
O
±5ppm maximum over -40° to +85°C w.r.t. f at +25°C
Per day
±0.432 s/day max.
Frequency Stability (ppm)
over temperature
Timing Error
over Time
Per month
Per year
±12.960 s/month max.
±2.628 minutes/year max.
Frequency Stability
vs. Ageing
±3ppm/year maximum first year at 25°C
vs. Load Change
vs. Reflow
±0.2ppm max. for a 10% load condition change
±1ppm max. 1 reflow and measured 24 hours afterwards
DD
vs. All range of VDD (∆f/V)
±1ppm/Volt max. V = 1.7V to 5.5V.
Supply Voltage Variation
DD
0.25 V max. Supply voltage stability at specified V . Condition ∆V / ∆t = 1 V/µs
DD
)
(∆V
Output Wave Form
Output Load
CMOS Square Wave
15pF
Page 2 of 5
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
QUARTZ
EURO
EME83 SERIES TCXO
32.768kHz
Low Power (nA Current Consumption)
OH
DD
OH
DD
V
V
V
- 0.4V min. I
= -0.1mA, all V range
Output Voltage Levels
OL
OL
DD
0.4V max., I = 0.1mA, all V range
R
Rise Time (t ) and
100 ns max., at 20% to 80% of waveform. 15pF load.
F
Fall Time (t )
S
1ms max., at +25°C; 3ms max. over -40° to +85°C
32768Hz, 4096Hz & 1024Hz: 50%±10% max.
128Hz, 32Hz, 1Hz, 1/10Hz, 1/60Hz: 50% ±5% max.
Start-up Time (T )
Measured at 50% of VDD
over -40° to +85°C
Duty Cycle (Symmetry)
Pin 1 OE Thresholds
DD
Vih = 0.8 *V
DD
Vil = 0.2*V
ENVIRONMENTAL PERFORMANCE and SPECIFICATIONS
Green Compliance
Moisture Sensitivity Level
Humidity
RoHS Compliant, Pb (lead) free in accordance with EU Directive 2002/95/EC
MSL = 1. According to IPC/JEDEC J-STD-020D.1
85% RH, 85°C for 48 hours
-8
Hermeticity
Leak rate 2 x 10 ATM-cm3/s maximum.
Solderability
MIL-STD-202F method 208E
Vibration
MIL-STD-202F method 204, 35G, 50 to 2000Hz
MIL-STD-202F method 213B, test condition E, 1000g ½ sinewave
2kV minimum, Human Body Model (HBM) according to IEC 610000-4-2
0.3 ~ 1.2µm gold over 1.27 ~ 8.89µm nickel
20s masx at peak temperature of 260°C. Two reflows maximum
0.196 grams typical
Shock
Electrostatic Sensitivity
Contact Pad Surface Finish
Solder Reflow
Weight of the device
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD)
-0.5V minimum, 6.5V maximum VSS = 0V
Ambient Temperature Range -40° to +85°C
Storage Temperature Range -40° to +85°C for temperature compensated units
TYPICAL FREQUENCY STABILITY OVER TEMPERATURE
Page 3 of 5
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
QUARTZ
EURO
EME83 SERIES TCXO
32.768kHz
Low Power (nA Current Consumption)
PEAK CURRENT DURING MEASUREMENT PERIOD
Example shown: 18EME833 Series (VDD = 1.8V, temperature measurement period = 30 seconds.)
BLOCK DIAGRAM
PACKAGE DIMENSIONS and SUGGEST SOLDER LAYOUT
Page 4 of 5
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
QUARTZ
EURO
EME83 SERIES TCXO
32.768kHz
Low Power (nA Current Consumption)
PART NUMBER SCHEDULE
Example: 18EM834-32768
18 EM83 4 - 32768
Orderable Part Output
Numbers
Frequency
Supply Voltage
18 = 1.8 VDC
25 = 2.5 VDC
xxME83y-1/60
1/60Hz
xxME83y-1/10
xxME83y-1
1/10Hz
1Hz
3
= 3.0 VDC
33 = 3.3 VDC
= 5.0 VDC
5
Product Series EME83
Measurement Period
1 = Every minute
2 = Every 2 minutes
3 = Every 30 seconds
4 = Every 4 minutes
(standard)
xxME83y-32
32Hz
xxME83y-128
xxME83y-1024
xxME83y-4096
128Hz
1024Hz
4096Hz
Frequency in Hz
xxME83y-32768 32768Hz
(per IPC/JEDEC J-STD-020D.1)
RECOMMENDED SOLDER REFLOW PROFILE
Profile Feature
Sn-Pb Eutectic Assembly
Pb-free Assembly
Preheat/Soak
Temperature min. (Ts min.)
Temperature max. (Ts max.)
Time (ts) (ts min. to ts max.)
100°C
150°C
150°C
200°C
60 to 120 seconds
3°C/second maximum
183°C
60 to 180 seconds
3°C/second maximum
217°C
L
P
Ramp-up Rate (T to T )
Liquidous Temperature
L
L
60 to 150 seconds
235°C
60 to 150 seconds
260°C
Time (t ) maintained above T
Peak package body temperature (Tp)
Time (Tp) within 5°C of the classification temperature Tc
10 to 30 seconds
20 to 40 seconds
L
6°C/second maximum
6 minutes maximum
6°C/second maximum
8 minutes maximum
Ramp-down rate (Tp to T )
Time 25°C to peak temperature
All temperature refer to topside of the package, measured on the package body surface.
Page 5 of 5
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
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HONEYWELL
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