Ultra-Low Phase Noise
Clock Oscillator
Specifications subject to change without notice.
The CCHD-950 was designed
specifically for applications
requiring Ultra-Low Phase
Noise. Also available in VCXO
version. Available on tape and
reel in quantities of 100, 250
and 500pcs.
9X14 mm SMD,
3.3V, CMOS
CCHD-950 Model
50MHz to 125MHz
±20ppm, ±25ppm, ±50ppm
0°C to 70°C (±20ppm, ±25ppm, ±50ppm)
-20°C to 70°C (±25ppm, ±50ppm)
-40°C to 85°C (±25ppm, ±50ppm)
-55°C to 120°C
3.3V ±0.3V
15mA Typ, 25mA Max
CMOS
45/55% Max @ 50% Vdd
3ns Max @ 20% to 80% Vdd
"0" = 10% Vdd Max
"1" = 90% Vdd Min
15pF
±24mA Max
0.5psec Typ., 1psec RMS Max
-160dBc Typ., -155dBc Max Guaranteed
None
<3ppm 1st/yr, <1ppm every year thereafter
Frequency Range:
Frequency Stability:
Temperature Range:
(Option M)
(Option X)
Storage:
Input Voltage:
Input Current:
Output:
Symmetry:
Rise/Fall Time:
Logic:
Load:
Output current:
Jitter:
12KHz to 80MHz
Phase Noise Floor:
Sub-Harmonics:
Aging:
TD-030603 Rev. C
0.360
(9.14)
0.560
(14.2)
CRYSTEK
P/N
Frequency
Date Code
0.210
(5.3)
0.560
(14.2)
0.200
(5.08)
0.040
(1.01)
0.070
(1.77)
1
3
4
2
SUGGESTED PAD LAYOUT
0.280
(7.11)
0.050
(1.27)
0.200
(5.08)
0.090
(2.28)
Pad
Connection
1
2
3
4
N/C
GND
OUT
Vdd
80MHz Phase Noise Plot
Part Number Example:
CCHD-950-20-100.000 = 3.3V, 45/55, ±20ppm, 0/70°C, 100.000 MHz
CCHD-950M-25-100.000 = 3.3V, 45/55, ±25ppm, -20/70°C, 100.000 MHz
CCHD-950X-50-100.000 = 3.3V, 45/55, ±50ppm, -40/85°C, 100.000 MHz
Le
ad
Fre
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Ro
HS
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RECOMMENDED REFLOW SOLDERING PROFILE
217°C
200°C
260°C
150°C
90 Secs. Max.
Ramp-Up
3°C/Sec Max.
Preheat
180 Secs. Max.
8 Minutes Max.
260°C for
10 Secs. Max.
Critical Temperature
Zone
Ramp-Down
6°C/Sec.
NOTE: Reflow Profile with 240°C peak also acceptable.
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