CVXO-918T Datasheet, PDF (1/1 Pages) Crystek Corporation – Voltage Controlled Crystal Oscillator

CVXO-918T Model
9X14 mm SMD, 3.3V, CMOS
Frequency Range:
1MHz to 52MHz
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Frequency Stability:
±25ppm to ±100ppm
Temperature Range:
Operating:
0°C to 70°C
(Option X)
-40°C to 85°C
Storage:
-55°C to 125°C
Input Voltage:
3.3V ±0.3V
Control Voltage:
1.65V ±1.35V
Settability At Nominal:
1.65V ±0.25V
Control Range:
±100ppm Min
Input:
Current:
40mA Max
Impedance:
10K Ohms Min.
Modulation Bandwidth: 10KHz (-3dB) Min.
Output:
CMOS
Load:
15pF Max
Symmetry:
40/60% Max @ 50% Vdd
Rise/Fall Time:
5ns Max @ 20% to 80% Vdd
Logic:
"0" = 10% Vdd Max
Linearity:
"1" = 90% Vdd Min
Modulation Bandwidth: ±10% Max
Aging:
<3ppm 1st/yr, <1ppm every year thereafter
Voltage Controlled
Crystal Oscillator
Designed to meet today's
requirements for cost saving
solutions. The CVXO-918T
provides a Cost Savings
replacements for older style
ceramic tub designs. Available
on 16mm tape and reel in
quantities of 500pcs.
0.560
(14.2)
CRYSTEK
0.360
P/N
(9.14)
Frequency
Date Code
0.210
(5.3)
0.560
(14.2)
123
654
SUGGESTED PAD LAYOUT
0.050
(1.27)
0.070
(1.77)
0.090
(2.28)
0.280
(7.11)
0.100
(2.54)
0.040
(1.01)
0.200
(5.08)
RECOMMENDED REFLOW SOLDERING PROFILE
260°C
217°C
Ramp-Up
3°C/Sec Max.
Critical Temperature
Zone
Ramp-Down
6°C/Sec.
200°C
150°C
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
PIN
Connection
1
Cont. Volt.
2
Tri-State
3
GND
4
O/P
5
N/C
6
Vdd
Crystek Part Number Guide
CVXO-918T X - 25 - 49.152
#1
#2 #3 #4
#5
#1 Crystek VCXO
#2 Model
#3 Temp. Range: Blank= 0/70°C, X= -40/85°C
#4 Stability: (see Table 1)
#5 Frequency in MHz: 3 or 6 decimal places
Stability Indicator
Blank (std)
25
50
± 100ppm
± 25ppm
± 50ppm
Table 1
Example:
CVXO-918TX-25-25.000 = 5.0V Tristate, -40/85°C, 40/60, 25ppm, 25.000 MHz
CVXO-918T-50-19.660800 = 5.0V Tristate, 0/70°C, 40/60, 50ppm, 19.660800 MHz
Tri-State Function
Tri-State pin
Output pin
Open
"1" level 2.7V Min
"0" level 0.3V Max
Active
Active
High Z
*Settability is the Control Voltage at which the Output Frequency is equal to the nominal Frequency.
Specifications subject to change without notice.
TD-040402 Rev. C