CCHD-957 Model
9×14 mm SMD, 3.3V, HCMOS
Frequency Range:
Temperature Range:
(Option M)
(Option X)
Storage:
10 MHz to 50 MHz
0°C to +70°C
-20°C to +70°C
-40°C to +85°C
-45°C to 90°C
Input Voltage:
Input Current:
Input Current (Disabled Mode): 1.5mA Max
3.3V ±0.3V
15mA Typ., 25mA Max
Developed
Frequencies
Output:
HCMOS
Symmetry:
Rise/Fall Time:
Logic:
45/55% Max @ 50%Vcc
3nsec Max @ 20% to 80% Vcc
“0” = 10% Vcc Max
“1” = 90% Vcc Min
15pF
22.5792 MHz
24.576 MHz
45.1584 MHz
49.152 MHz
Load:
Output Current:
±24mA Max
Disable Time:
200ns Max
Start-up Time:
Pin 1 Disable Current:
Phase Noise:
Phase Noise Floor:
Sub-harmonics:
Aging:
1ms typ., 2ms Max
-350µA Max
-100 dBc/Hz Typ., -95 dBc/Hz Max at 10Hz offset
-169 dBc/Hz Typ., -165 dBc/Hz Max
None
<3ppm 1st/yr, <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
0.560
(14.2)
RECOMMENDED REFLOW SOLDERING PROFILE
Ramp-Up
Critical
Temperature Zone
3°C/Sec Max.
0.560
(14.2)
CRYSTEK
CCHD-957
Frequency
Date Code
260°C
Ramp-Down
6°C/Sec.
0.360
(9.14)
217°C
200°C
0.210
(5.3)
150°C
SUGGESTED PAD LAYOUT
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
0.050
(1.27)
0.040
(1.01)
260°C for
10 Secs. Max.
0.090
(2.28)
NOTE: Reflow Profile with 240°C peak also acceptable.
1
4
2
3
0.280
(7.11)
0.070
(1.77)
Tri-State/Standby Function
Pad
Connection
1
2
3
4
E/D
GND
OUT
Vcc
Function pin 1
Output pin
0.200
(5.08)
0.200
(5.08)
Open
"1" level 0.7×Vcc Min
"0" level 0.3×Vcc Max
Active
Active
High Z
Rev: D
Date: 22-Jan-12
Page 2 of 2
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
CRYSTEK
CORPORATION
Fax: 239-561-1025 • www.crystek.com
CRYSTEKMICROWAVE [ CRYSTEK CORPORATION ]
