Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator
ASTMTXK
Moisture Sensitivity Level (MSL) – 1
ESD Sensitive
Pb
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
FEATURES:
• Smallest 32.768kHz TCXO in the market: 1.54 x 0.84 x 0.6mm
• Supply Voltage: 1.5V to 3.63V
• Ultra-Low Current Consumption: 1.52µA max.(core current, no load)
• Frequency Stabilities include: ±5ppm, ±10ppm, ±20ppm over 0 to
+70°C and -40 to +85°C
• Internal power supply filtering eliminates external bypass capacitor
for Vdd port.
• High Performance MEMS Technology by SiTime
STANDARD SPECIFICATIONS:
Parameters
Output Frequency (F
out
)
Frequency Stability over Temperature
(F
stab
)
(1)
(without Initial Offset
(2)
)
Frequency Stability over Temperature
(F
stab
) (with Initial Offset
(2)
)
Frequency Stability vs Voltage (F
vdd
)
Aging (@+25°C)
Supply Voltage (V
dd
)
Core Supply Current ( I
dd
)
(3)
APPLICATIONS:
• Fitness/Medical monitoring sensors
• Smart Meters
• Portable devices
• RTC reference clock
Min
-5
-10
-20
-10
-13
-22
-0.75
-1.5
-1
1.5
Typ
32.768
Max
+5
+10
+20
+10
+13
+22
+0.75
+1.5
+1
3.63
Unit
kHz
ppm
ppm
ppm
ppm
V
µA
ms
ms
°C
µs
pp
ns
RMS
Notes
Stability Option “G”
Stability Option “Y”
Stability Option “J”
Stability Option “G”
Stability Option “Y”
Stability Option “J”
1.8V±10%
1.5-3.63V
First year. V
dd
= 3.3V
T
A
= -40°C to +85°C
T
A
= +25°C, V
dd
: 1.8V. LVCMOS
output. No load.
T
A
= -40°C to +85°C,
V
dd
max: 1.5V - 3.63V. No load.
T
A
= -40°C to +60°C, 0 to 90%*V
dd
T
A
= -40°C to +60°C, valid output
T
A
= +60°C to +70°C, valid output
T
A
= +70°C to +85°C, valid output
Option “N”
Option “L”
81920 cycles (2.5sec), 100 samples
Cycles=10000, T
A
= +25°C,
V
dd
:1.5-3.63V
10-90%(V
dd
), 15pF load
10-90%(V
dd
), 5pF load, V
dd
≥1.62V
V
dd
:1.5-3.63V. I
OH
= -1µA, 15pF
V
dd
:1.5-3.63V. I
OL
= 1µA, 15pF
0.99
1.52
180
0
-40
35
100
300
350
380
+70
+85
2.5
Power Supply Ramp (t
Vdd_Ramp
)
Start-up Time at Power-up (T
start
)
Operating Temperature Range (T
use
)
Long Term Jitter
Period Jitter
LVCMOS Output Option
( T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C)
100
200
Output Rise/Fall Time (t
r
/t
f
)
ns
50
Output Clock Duty Cycle
48
52
%
90%*V
dd
V
OH
V
Output Voltage
V
OL
10%*V
dd
Note:
1.
2.
3.
No board level underfill. Measured as peak-to-peak/2. Inclusive of 3x-reflow and ±20% load variation. Tested with Agilent
53132A frequency counter. Due to the low operating frequency, the gate time must be
≥100ms
to ensure an accurate
frequency measurement.
Initial offset is defined as the frequency deviation from the ideal 32.768kHz at room temperature, past reflow.
Core operating current does not include output driver operating current or load current. To derive total operating current (no
load), add core operating current + output driver operating current, where output driver operating current = C
driver
*V
out
*F
out
.
ABRACON IS
ISO9001:2008
CE RTIFIED
LLC
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 06.30.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit
www.abracon.com
for Terms and Conditions of Sale
Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator
ASTMTXK
Absolute Maximum Ratings
Attempted operation outside the absolute maximum ratings may cause permanent damage to the part. Actual
performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings.
Parameters
Continuous Power Supply Voltage Range (V
dd
)
Short Duration Max. Power Supply Voltage (V
dd
)
Continuous Maximum Operating Temperature Range
Short Duration Max. Operating Temperature Range
Human Body Model (HBM) ESD Protection
Charge-Device Model (CDM) ESD Protection
Machine Model (MM) ESD Protection
Latch-up Tolerance
Mechanical Shock Resistance
Mechanical Vibration Resistance
1508 CSP Junction Temperature
Storage Te mperature
Value
-0.5 to 3.63
4.0
≤30
minutes
105
Vdd:1.5-3.63V
125
Vdd:1.5-3.63V,
≤30
minutes
JESD22-A114
3000
JESD22-C101
750
JESD22-A115
300
JESD78 Compliant
Mil 883, Method 2002
10000
Mil 883, Method 2007
70
150
-65 to +150
Test Condition
Unit
V
V
°C
°C
V
V
V
g
g
°C
°C
Pb
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
Block Diagram
PART IDENTIFICATION:
ASTMTXK - 32.768 kHz -
Operating Temp.
N: 0°C ~ +70°C
L: -40°C ~ +85°C
-
Packaging
Blank: Bulk
T: Tape & Reel
(1kpcs / reel)
T3: Tape & Reel
(3kpcs / reel)
T10: Tape & Reel
(10kpcs / reel)
Freq. Stability
G: ±5ppm
Y: ±10 ppm
J: ±20 ppm
ABRACON IS
ISO9001:2008
CE RTIFIED
LLC
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 06.30.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit
www.abracon.com
for Terms and Conditions of Sale
Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator
ASTMTXK
Pb
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
Typical Performance Data (TA=25°C, Vdd=1.8V, unless otherwise stated)
Frequency Stability vs. Operating Temperature Range
(Pre-Reflow )
Frequency Stability vs. Operating Temperature Range
(Post-Reflow)
Core Current vs Operating Temperature Range
Total Supply Current vs Operating Temperature Range
(Core+LVCMOS Output Driver, No Load)
Start-up and Steady-State Current Profile
ABRACON IS
ISO9001:2008
CE RTIFIED
LLC
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 06.30.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit
www.abracon.com
for Terms and Conditions of Sale
Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator
ASTMTXK
PART IDENTIFICATION:
Power Supply Noise Rejection (±150mV Noise)
Pb
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
Temperature Ramp Response
LVCMOS Output Waveform
(V
swing
= 1.8V, 10pF load)
ABRACON IS
ISO9001:2008
CE RTIFIED
LLC
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 06.30.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit
www.abracon.com
for Terms and Conditions of Sale
Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator
ASTMTXK
OUTLINE DIMENSION:
Pb
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
Recommended Land Pattern
Pin
1,4
2
Name
GND
CLK Out
I/O
Power Supply Ground
OUT
3
V
dd
Power Supply
Functionality
Connect to ground. All GND pins must be connected
to power supply ground. The GND pins can be
connected together, as long as both GND pins are
connected to ground.
Oscillator clock output.
Connect to power supply 1.5V≤V
dd
≤3.63V.
Under
normal operating conditions, V
dd
doesn’t require
external bypass/decoupling capacitor(s). Internal
power supply filtering will reject more than
±150mVpp with frequency components through
10MHz.
Dimensions: mm
Conditions
3°C/second max
150°C
175°C
200°C
60 – 180 seconds
3°C/second max
217°C
60 – 150 seconds
260°C max
255°C
20 – 40 seconds
3
6°C/second max
8 minutes max
REFLOW PROFILE:
Item
T
S
MAX to T
L
(Ramp-up Rate)
Preheat
Temperature Minimum (T
S
MIN)
Temperature Typical (T
S
TYP)
Temperature Maximum (T
S
MAX)
Time (t
S
)
Ramp-up Rate (T
L
to T
P
)
Time Maintained Above
Temperature (T
L
)
Time (t
L
)
Peak Temperature (T
P
)
Target Peak Temperature (T
P
Target)
Time within 5°C of actual peak (t
P
)
Max. Number of Reflow Cycles
Ramp-down Rate
Time 25°C to Peak Temperature (t)
ABRACON IS
ISO9001:2008
CE RTIFIED
LLC
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 06.30.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit
www.abracon.com
for Terms and Conditions of Sale
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