CVH-731/751
Straight Multiplication
HCMOS VCXO
Model CVH-731/751 is a 50Mhz to 180Mhz HCMOS Voltage Controlled
Crystal Oscillator. Designed using straight multiplication operating at 3.3Vdc
or 5.0Vdc and -40 to +85C operating temperature.. This design provides cost
advantage over the HFF mesa design and superior performance over PLL
designs. This VCXO is also available in 3.3Vdc and 5.0Vdc Clock Oscillator
versions.
Applications include Broad band Networks, SONET/SDH/DWD, ATM,
Network/switch and Base Stations
Rev.: C
Date: 02-07-08
CVH-731/751
Straight Multiplication
HCMOS VCXO
Frequency Range:
50Mhz to 180Mhz
Temperature Range:
(Option M)
(Option X)
Storage:
0°C to +70°C (standard)
-20°C to +70°C
-40°C to +85°C
-45°C to 120°C
Frequency Stability: (ppm)
VS Temp.
(ref. to +25°C)
±15, ±20, ±25, ±50, ±100 Max
VS Supply Chage ±5% ±5ppm Max
VS Load Chage ±10% ±3ppm Max
Input Voltage:
(731)
(751)
3.3V ± 0.3V
5.0V ± 0.5V
25~60mA
(Freq. Dependent)
10K ohms Min.
1.65V ±1.65V
2.5V ±2.5V
1.65V ±0.25V
2.5V ±0.5V
Input Current:
Input Impedance:
Control Voltage: (731)
(751)
Settability At Nominal: (731)
(751)
Output:
HCMOS
Symmetry:
40/60% Max @ 50%Vdd
(Option Y)
45/55% Max @ 50%Vdd
Rise/Fall Time:
2~10nsec@ 20% to 80% Vdd
(Freq. Dependent)
Pullability APR: (ppm) ±50, ±100, ±150, ±200 Min
(see table)
Linearity:
±10% Max
Logic:
“0” = 10% Vdd Max
“1” = 90% Vdd Min.
Load:
15pF Typical
Start-up Time:
2msec Typical, 5msec Max
>10KHz @ -3dB
-35dBc Typical
10Hz @ -52 dBc/Hz
100Hz @ -85dBc/Hz
1KHz @ -120 dBc/Hz
10KHz @ -150 dBc/Hz
100KHz @ -155 dBc/Hz
<3ppm 1st/yr, <1ppm thereafter
Modulation BW:
Sub-harmonics:
Phase Noise Typical:
Aging:
Rev.: C
Date: 02-07-08
CVH-731/751
Straight Multiplication
HCMOS VCXO
Shock:
Solderability:
Vibration:
Solvent Resistance:
Resistance to Soldering Heat:
Gross Leak:
Fine Leak:
Thermal Shock:
Moisture Resistance:
Mechanical:
MIL-STD-883, Method 2002, Condition B
MIL-STD-883, Method 2003
MIL-STD-883, Method 2007, Condition A
MIL-STD-202, Method 215
MIL-STD-202, Method 210, Condition A,B or C
MIL-STD-883, Method 1014, Condition C
MIL-STD-883, Method 1014, Condition A1
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
Environmental:
PART NUMBER GUIDE
#1
#2 #3 #4 #5 #6
#7
#1 Crystek 14 Pin Dip VCXO
#2 Model = Straight Multiplication 3.3V OR 5.0V
#3 Temp. Range (Blank=0/70°C)(M=-20/70°C)(X=-40/85°C)
#4 Duty Cycle: Blank = 40/60%, Y = 45/55%
#5 Frequency Stability: A=±15, B= ±20, C= ±25, D= ±50, E= ±100
#6 Frequency Pullability (APR Min.): Z= ±50,Y= ±100,X= ±150,W= ±200
#7 Frequency in MHz: 3 or 6 decimal places
CVH - 751 X Y B Z - 125.000
Example:
CVH-751XYBW-125.000
5.0V, -40/85°C, 45/55%, ±20ppm, ±50ppm, 125.000 MHz
Pad
1
2
3
0.236
(6.00)
0.300
(7.62)
Connection
Volt. Cntrl.
GND
Output
Vdd
0.820
(20.83)
0.750
(19.05)
4
0.600
(15.24)
Pin 1
Pin 7
0.300
(7.62)
Pin 14
Pin 8
CRYSTEK
Part Number
Frequency
Date Code
0.520
(13.21)
0.450
(11.43)
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
Rev.: C
Date: 02-07-08
