QTS750
Temperature Compensated Crystal Oscillator
Fuel The Digital World
Features
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Applications
Frequency range : 10MHz to 52MHz
SMD seam sealing ceramic package
Supply voltage : 3.3V
Free Run Stability for 20 Years :
±4.6ppm (Stratum 3)
Clipped Sinewave output
Voltage control function available
External dimensions (mm)
L : 7.0 x W : 5.0 x H : 2.0
RoHS compliant & Pb free
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Wireless communications,
Smallcell, Base station
Precise timing & synchronization
network (IEEE1588, Sync.E),
OTN, PTN, Switch
Test and measurement equipment
Smart grid
Stratum 3
Electrical Characteristics
Item
Nominal Frequency Range (F 0)
Frequency Tolerance (Ftol)
vs Temperature
Frequency Stability
QTS750
Conditions
10MHz ~ 52MHz
±2.0 ppm Max.
Note [1]
±0.1ppm, ±0.28ppm, ±0.5ppm
Note [2]
vs Load
±0.1 ppm Max.
Load ±5%
vs Supply Voltage
±0.1 ppm Max.
VDD ±5%
Operating Temperature Range (T OTR)
-40°C ~ +85°C
Supply Voltage (VDD)
3.3V
Current Consumption (IDD)
5.0 mA Max.
Output Type
Clipped Sinewave
Output Load
10kΩ // 10pF
Output Level
0.8 V(p-p) Min.
Start-up Time
2.5 ms Max.
Note [3]
Auto Frequency Control (AFC) Range
±5ppm ~ ±16ppm
VCTCXO, optional
VC = 1.5±1.0V
Phase Noise
-135 dBc/Hz Typ.
at 1kHz offset
Aging (Faging)
±1 ppm Max.
at 25°C, first year
24 Hours Holdover Stability
±40 ppb Max.
Note [4]
Free Run Stability for 20 Years
±4.6 ppm Max.
Note [5]
Storage Temperature Range (T STR)
-55°C ~ +125°C
Rev. 1.02
Page 1
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QTS750
Temperature Compensated Crystal Oscillator
Fuel The Digital World
Notes:
[1] Refer to nominal frequency, operation after 2 times of reflow at 25°C.
[2] Refer to (Fmax + Fmin)/2.
[3] Decoupling capacitor is required in external circuit.
[4] 24 hours at constant temerature after 48 hours operation
[5] Inclusive of initial tolerence at 25°C, variations over temerature, supply voltage, load, reflow
soldering and aging for 20 years.
Dimensions
Pin function
Function
Pin
Pin 1
TCXO
VCTCXO
GND or NC
AFC
Pin 2
GND
Pin 3
OUTPUT
Pin 4
VDD
Recommended pad layout
(Unit: mm)
Ordering Information
QTS750
-
19.200M B P
-
Frequency in Hz
T
Packaging Method
T
Please contact us for
available frequencies
Tape & Reel
Frequency Stability (over Temp.)
Supply Voltage
B
Rev. 1.02
F
G
O
P
T
U
3.3 V
Page 2
± 0.5 ppm
± 0.5 ppm
± 0.28 ppm
± 0.28 ppm
± 0.1 ppm
± 0.1 ppm
( -40°C ~ +85°C ),
( -40°C ~ +85°C ),
( -40°C ~ +85°C ),
( -40°C ~ +85°C ),
( -40°C ~ +85°C ),
( -40°C ~ +85°C ),
VCTCXO
TCXO
VCTCXO
TCXO
VCTCXO
TCXO
www.qstproducts.com
QTS750
Temperature Compensated Crystal Oscillator
Fuel The Digital World
Packing
(Unit: mm)
Reflow Profile
Solder melting point : 220°C ± 10°C, 60 sec. Min., 200 sec. Max.
Peak temperature : 260°C ± 10°C, 10 sec. Min., 30 sec. Max.
(°C)
10 sec
260
220
180
150
120 sec
Rev. 1.02
60 sec
Page 3
Time (sec)
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