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SiT1630 Datasheet Preview

SiT1630 Datasheet

Ultra-Small 32.768 kHz Oscillator

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SiT1630
Ultra-Low Power, Ultra-Small 32.768 kHz Oscillator
TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee
Features
Applications
<20 ppm initial tolerance
<100 ppm stability over -40°C to +85°C
Small SMD package: 2.0 x 1.2 mm (2012)[1]
Ultra-low power: 1.0 µA typ
Vdd supply range: 1.5V to 3.63V
Operating temperature ranges:
• -10°C to +70°C
• -40°C to +85°C
• -40°C to +105°C[1]
Internal filtering eliminates external Vdd bypass capacitors
Pb-free, RoHS and REACH compliant
Industrial timekeeping
Industrial battery management
Multi-drop 32 kHz clock distribution
Bluetooth modules
WiFi modules
RTC Reference Clock
Note: 1. For the smallest 32 kHz XO in CSP (1.2mm2), consider the SiT1532. Contact Factory for -40°C to +105°C availability.
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Condition
Frequency and Stability
Output Frequency
Fout
32.768
kHz
Frequency Stability
Initial Tolerance [2]
F_init
Frequency Stability Over Temperature [3] F_stab
25°C Aging
-1
20 ppm TA = 25°C, post reflow, Vdd: 1.5V – 3.63V.
75
100
ppm
TA = -10°C to +70°C, Vdd: 1.5V – 3.63V.
TA = -40°C to +85°C, Vdd: 1.5V – 3.63V.
150 TA = -40°C to +105°C, Vdd: 1.5V – 3.63V.
1 ppm 1st Year
Supply Voltage and Current Consumption
Operating Supply Voltage
Operating Current
Power-Supply Ramp
Vdd 1.5
Idd
t_Vdd_
Ramp
3.63
1.0
1.90
2.20
2.80
100
V TA = over temperature
TA = 25°C, Vdd: 1.5V – 3.3V. No load
μA TA = -10°C to +70°C, Vdd max: 3.63V. No load
TA = -40°C to +85°C, Vdd max: 3.63V. No load
TA = -40°C to +105°C, Vdd max: 3.63V. No load
ms Over temperature, 0 to 90% Vdd
Start-up Time at Power-up
T_start
180 300
450
500
800
TA = 25°C ±10°C
ms TA = -40°C to +70°C
TA = +85°C
TA = +105°C
Operating Temperature Range
Commercial Temperature
T_use -10
70 Temp code “C” in part number ordering
Industrial Temperature
Extended Industrial Temperature
-40 85 °C Temp code “I” in part number ordering
-40
105
Temp code “E” in part number ordering.
Contact Factory for Availability.
Output Rise/Fall Time
LVCMOS Output, TA = Over Temperature, typical values are at TA = 25°C
tr, tf
100 200
ns 10-90%, 15 pF load, Vdd = 1.5V to 3.63V
Output Clock Duty Cycle
DC 48
52 %
Output Voltage High
VOH
90%
V Vdd: 1.5V – 3.63V. IOH = -10 μA, 15 pF
Output Voltage Low
VOL
10%
V Vdd: 1.5V – 3.63V. IOL = 10 μA, 15 pF
Maximum Output Drive
Period Jitter
T_jitt
50 pF ≥80% LVCMOS swing, TA = over temperature, Vdd = 1.5V to 3.3V
35 nsRMS Cycles = 10,000, TA = 25°C
Notes:
2. Measured peak-to-peak. Tested with Agilent 53132A frequency counter. Due to the low operating frequency, the gate time must be ≥100 ms to ensure an accurate
frequency measurement.
3. Measured peak-to-peak. Inclusive of Initial Tolerance at 25°C, and variations over operating temperature, rated power supply voltage and load.
SiTime Corporation
Rev 1.2
990 Almanor Avenue, Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised November 25, 2014




SiTime

SiT1630 Datasheet Preview

SiT1630 Datasheet

Ultra-Small 32.768 kHz Oscillator

No Preview Available !

SiT1630
Ultra-Low Power, Ultra-Small 32.768 kHz Oscillator
Pin Configuration
TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee
SMD
Pin
1
2
3
4
Symbol
NC
GND
CLK Out
Vdd
I/O
No Connect
Power Supply
Ground
OUT
Power Supply
Functionality
No Connect. Will not respond to any input signal.
Connect to ground. All GND pins must be connected to power supply ground.
Oscillator clock output. When interfacing to an MCU’s XTAL input, the CLK Out is typically
connected to the receiving IC’s X IN pin.
Connect to power supply 1.5V ≤ Vdd ≤ 3.63V. Under normal operating conditions, Vdd does
not require external bypass/decoupling capacitor(s). Internal power supply filtering will reject
more than ±150 mVpp with frequency components through 10 MHz.
System Block Diagram
SMD Package (Top View)
NC 1
Vdd
4
2
GND
3 CLK Out
MEMS Resonator
NC
Control
Regulators
GND
Sustaining
Amp
Ultra-Low
Power
PLL
Prog
Divider
Ultra-Low
Power Driver
Vdd
CLK Out
Figure 1.
Absolute Maximum
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.
Parameter
Continuous Power Supply Voltage Range (Vdd)
Short Duration Maximum Power Supply Voltage (Vdd)
Short Duration Maximum Operating Temperature Range
Human Body Model ESD Protection
Charge-Device Model (CDM) ESD Protection
Machine Model (MM) ESD Protection
Latch-up Tolerance
Mechanical Shock Resistance
Mechanical Vibration Resistance
2012 SMD Junction Temperature
Storage Temperature
Test Condition
Value
Unit
-0.5 to 3.63
V
≤30 minutes, over -40°C to +85°C
4.0 V
Vdd = 1.5V - 3.63V, ≤30 mins
125 °C
HBM, JESD22-A114
3000
V
JESD220C101
750 V
TA = 25°C
JESD78 Compliant
300
V
Mil 883, Method 2002
10,000
g
Mil 883, Method 2007
70 g
150 °C
-65°C to 150°C
Rev. 1.2
Page 2 of 7
www.sitime.com


Part Number SiT1630
Description Ultra-Small 32.768 kHz Oscillator
Maker SiTime
Total Page 7 Pages
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