C18xx Model
5X7 mm SMD,
1.8V, LVCMOS
Frequency Range:
Frequency Stability:
Temperature Range:
Operating:
(Option M)
Storage:
Input Voltage:
Input Current:
Output:
Symmetry:
Rise/Fall Time:
Logic:
Load:
Jitter RMS:
12KHz~20MHz
1MHz to 100MHz
±20ppm to ±100ppm
ree
dF S
a
Le oH ant
R pli
m
Co
Clock Oscillator
0°C to 70°C
-20°C to 70°C
-55°C to 120°C
1.8V ± 0.2V
30mA Max @ 15pF
LVCMOS
45/55% Max @ 50% Vdd
1ns Typ, 3.5ns Max
"0" = 10% Vdd Max
"1" = 90% Vdd Min
15pF Max
0.5ps Typ, 1ps Max
Designed to meet today's
requirements for low
voltage applications. The
power saving sleep
function of the C18xx turns
the oscillator circuit off for
maximum efficiency.
Available on 16mm tape
and reel in quantities of 1K.
Aging:
<3ppm 1st/yr, 1ppm every year thereafter
SUGGESTED PAD LAYOUT
.055 Typ.
(1.40 Typ.)
#1
#2
#3
.200 ±.005
(5.08 ±.13)
.045 ±.008
(1.14 ±.20)
.165
(4.19)
.071 SQ
(1.80)
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
.283 Max
(7.20)
P/N DC
Freq
Denotes pad 1
.204 Max
(5.02)
.075 Max
(1.80)
#4
.200
(5.08)
0.01uF Bypass Capacitor Recommended
RECOMMENDED REFLOW SOLDERING PROFILE
TEMPERATURE
260°C
217°C
200°C
150°C
Ramp-Up
3°C/Sec Max.
Critical Temperature
Zone
Ramp-Down
6°C/Sec.
Crystek Part Number Guide
Example: C1892-44.736MHZ
Example: CM1892-44.736MHZ
Temperature
0/ 70°C
-20/ 70°C
Frequency Stability
-40/ 85°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.
mA
M
OUT
pin 4
Vdd
OUT
C1890
C1892
C1891
C1898
CM1890
CM1892
CM1891
NA
CE1890 +/- 100ppm
CE1892 +/- 50ppm
CE1891 +/- 25ppm
NA
+/- 20ppm
Tri-State Function
Function pin 1
Open
"1" level 0.7V Min
"0" level 0.3V Max
Output pin
Active
Active
High Z
pin 3
OSC.
GND
PWR
Supply
O/P Load
incl Probe Cl
VM
Bypass
Cap.
pin 1
pin 2
High Impedance
GND or "LOW"
Oscillation
OPEN or "HIGH"
Specifications subject to change without notice.
TD-02061 Rev.H
CRYSTEKCRYSTAL [ Crystek Corporation ]
