CCHD-957
Ultra-Low Phase Noise Oscillator
with Standby Mode
CCHD-957 Model
9×14 mm SMD, 3.3V, HCMOS
Frequency Range:
Temperature Range:
(Option M)
(Option X)
Storage:
10 MHz to 50 MHz
Mechanical:
Shock: MIL-STD-883, Method 2002, Condition B
Solderability: MIL-STD-883, Method 2003
Vibration: MIL-STD-883, Method 2007, Condition A
Solvent Resistance: MIL-STD-202, Method 215
0°C to +70°C
-20°C to +70°C
-40°C to +85°C
-45°C to 90°C
3.3V ±0.3V
15mA Typical, 25mA Max
Resistance to Soldering Heat: MIL-STD-202, Method 210, Condition I or J
Input Voltage:
Input Current:
Environmental:
Input Current (Disabled Mode): 1.5mA Max
Thermal Shock: MIL-STD-883, Method 1011, Condition A
Moisture Resistance: MIL-STD-883, Method 1004
Output:
HCMOS
Symmetry:
Rise/Fall Time:
Logic:
45/55% Max @ 50%Vcc
3ns Max @ 20% to 80% Vcc
“0” = 10% Vcc Max
“1” = 90% Vcc Min
15pF
Developed Frequencies
10.000 MHz 24.576 MHz 40.000 MHz
Load:
Output Current:
20.000MHz
25.000 MHz 45.1584 MHz
±24mA Max
22.5792 MHz 27.000 MHz 49.152 MHz
24.000 MHz 28.000 MHz
Disable Time:
200ns Max
1ms Typical, 2ms Max
-350µA Max
Start-up Time:
Pin 1 Disable Current:
Phase Noise:
Phase Noise Floor:
Sub-harmonics:
Aging:
-100 dBc/Hz Typical, -95 dBc/Hz Max at 10Hz offset
-169 dBc/Hz Typical, -165 dBc/Hz Max
None
<3ppm 1st year, <1ppm thereafter
CCHD-957 Options:
Temperature Range:
0°C to +70°C (±20ppm, ±25ppm, ±50ppm)
-20°C to +70°C (±25ppm, ±50ppm)
-40°C to +85°C (±25ppm, ±50ppm)
Part Number Example:
CCHD-957X-25-49.152 = 3.3V, 45/55, -40°C to +85°C (±25ppm), 49.152 MHz
Top View
Side View
0.560
(14.2)
0.560
(14.2)
RECOMMENDED REFLOW SOLDERING PROFILE
900034 (See App Note listed on website)
0.210
(5.3)
CRYSTEK
CCHD-957
Frequency
Date Code
http://www.crystek.com/specification/reflow/900034.pdf
0.360
(9.14)
Tri-State/Standby Function
Function pin 1
Output pin
SUGGESTED PAD LAYOUT
Bottom View
Open
"1" level 0.7×Vcc Min
"0" level 0.3×Vcc Max
Active
Active
High Z
0.050
(1.27)
0.040
(1.01)
0.090
(2.28)
1
4
2
3
0.280
(7.11)
Pad
Connection
0.070
(1.77)
1
2
3
4
E/D
GND
OUT
Vcc
0.200
(5.08)
0.200
(5.08)
Rev: K
Date: 03-Mar-2020
Page 2 of 2
PAD FINISH: Immersion Gold (ENIG); 5 micro inches maximum
Crystek Corporation reserves the right to make changes to its
products and/or information contained herein without notice.
No liability is assumed as a result of its use or application.
16850 Oriole Road • Fort Myers, Florida 33912
Phone: 239-561-3311 • 800-237-3061
www.crystek.com
CRYSTEK
CORPORATION
C
CRYSTEKMICROWAVE [ CRYSTEK CORPORATION ]
