Designing and manufacturing innovative frequency control devices since 1927
Miniature,
5.0V,
Surface Mount, Tristate HCMOS Oscillators
SM990
M
SM991
Monitor Products’ SM990 and SM991 surface mount oscillators are
presented in highly reliable packages that can be reflow soldered at
260
o
C for 10 seconds, and are available in convenient tape and reel
packaging.
APPLICATIONS
M
M
M
M
M
M
M
M
M
PDAs
ATM
PCMCIA
Laptops
Controller Boards
Wireless RF
Networking
Disk & Tape Drives
Cameras
SM990
SM991
FEATURES
M
Low profile (1.6mm)
M
TTL/CMOS compatible
M
Hermetically-sealed, ceramic
package
M
Tristate enable/disable
M
Reflow solderable at 260
o
C
for 10 secs
M
16mm tape & reel (500 pcs/reel)
Units = mm
ELECTRICAL
SPECIFICATIONS
Supply Voltage
Load Capacitance
Input Current
(MHz = mA max)
SM990
5.0 VDC
!
0.5 V
50 pF
1.8432 ~ 20.0 = 20
20.1 ~ 50.0 = 35
50.1 & up = 60
SM991
1.8432 ~ 125.0 MHz *
5.0 VDC
!
0.5 V
15 pF
1.8432 ~ 30.0
30.1 ~ 35.0
35.1 ~66.0
66.1 & up
=
=
=
=
10
15
30
50
DEVELOPED FREQUENCIES
1.843200
2.048000
2.457600
3.579545
3.686400
4.000000
4.096000
4.354500
4.433619
4.915200
5.000000
5.068800
6.000000
6.144000
6.250000
6.758400
7.108000
7.200000
7.372800
7.680000
8.000000
8.064000
8.192000
9.830400
10.000000
11.059200
12.000000
12.288000
12.352000
12.441600
12.500000
13.248000
0
13.330000
13.500000
13.600000
14.318180
14.745600
15.000000
15.360000
16.000000
16.384000
16.500000
16.666000
16.666700
17.734476
18.432000
18.937500
19.069928
19.200000
19.312500
19.440000
19.660800
20.000000
20.160000
0
Frequency Range
1.8432 ~ 66.667 MHz *
Symmetry
Frequency Stability
Oper Temp Range
Rise and Fall Time
Start Up Time
Logic 0 Level
Logic 1 Level
E/D Phase Delay
Phase Jitter RMS
50/50
!
10% standard (50/50
!
5% optional
**
)
!
100 ppm standard (! 50 ppm avail)
-101C ~ 701C standard (other options avail)
10 nS max
5 mS max
Vcc X 0.1V max
Vcc X 0.9V min
100 nS max
8 pS typical
* Denotes frequency range potential. Contact factory for your specific requirement
** 5% symmetry available for selected frequencies - call factory for details
20.250000
20.284000
20.736000
22.000000
22.118400
22.220000
22.500000
23.040000
23.587000
24.000000
24.192000
24.576000
25.000000
25.175000
25.426500
25.750000
26.660000
27.000000
27.500000
28.224000
28.322000
28.375000
28.636360
29.491200
29.498900
29.498920
29.500000
30.000000
30.159000
30.720000
31.500000
32.000000
32.256000
32.768000
33.000000
33.330000
33.333000
33.333330
33.868800
34.200000
34.574400
34.576000
35.251200
35.328000
36.000000
36.864000
37.000000
37.056000
0
37.632000
38.912000
39.321600
39.398400
39.460000
39.936000
1
40.000000
40.500000
40.550400
40.608000
41.472000
42.000000
43.180000
43.243200
44.236800
44.736000
0
44.900000
45.000000
46.000000
46.647000
48.000000
48.384000
48.933000
49.152000
49.800000
50.000000
50.113630
50.000000
52.900000
53.000000
53.125000
53.203425
53.693175
54.000000
55.000000
56.250000
56.448000
57.600000
60.000000
62.196000
62.500000
63.566400
64.000000
65.000000
65.536000
66.000000
66.660000
66.666000
66.666700
66.667000
67.500000
1
67.737600
1
71.500000
1
75.000000
1
80.000000
1
100.000000
1
106.250000
1
108.000000
1
SM990 only
SM991 only
Monitor Products Company Inc reserves the right to make changes to its products and product specifications without notice. No liability is assumed as a result of their use or application.
12-14-00
CORPORATE / MANUFACTURING
REGIONAL SALES OFFICE
502 VIA DEL MONTE, OCEANSIDE, CA 92054
3415 CUSTER ROAD, SUITE 103, PLANO, TX 75023
TEL:
760.433.4510
TEL:
972.758.8687
FAX:
760.434.0255
FAX:
972.758.7574
SM990
M
SM991
ENVIRONMENTAL PERFORMANCE SPECIFICATIONS
Operating Temp Range
Storage Temp Range
Humidity
Hermetic Seal
Solderability
Reflow Solderability
Vibration
Shock
MIL-0-55310
Packaging
-101C ~ 701C standard *
-551C ~ 1251C
85% RH, 851C, 48 Hours
Leak Rate 2 x 10
-8
ATM-cm
3
/sec max
MIL-STD-202F Method 208E
2601C for 10 seconds
MIL-STD-202F Method 204,
35G, 50 to 2000 Hz
MIL-STD-202F Method 213B
Test Cond E, 1000G, 1/2 Sine Wave
Exceeds environmental and electrical
specifications of equivalent MIL-0-55310
16mm Tape & Reel (500pcs/reel)
or Bulk (<500pcs )
*
See Part Numbering Key for other temperature options
Terminal 3 goes to
High Impedance
Output Disabled
Open or Logic “1”
Output Enabled
(Internal 10K
W
pull-up resistor)
0.01
l
F
+ VCC
OUT
#4
#3
C
L
SM990 = 50 pF
SM991 = 15 pF
#1
#2
TEST CIRCUIT
Units : mm
TAPE DIMENSIONS
REEL DIMENSIONS (500pcs/reel std)
PART
NUMBERING
KEY
Sample Part Numbers
SERIES
SYMMETRY
FREQUENCY
STABILITY
TEMPERATURE
RANGE
2 = 01C ~ 701C
3 = -201C ~ 701C
5 = -401C ~ 851C
7 = -101C ~ 701C*
PACKAGING
A = Bulk (< 500pcs)
E = Tape & Reel*
(500pcs /reel)
FREQUENCY
SM990
= 5.0V, 50pF
SM991
= 5.0V, 15pF
21 = 55/45 %
22 = 60/40 %
B = 100 ppm*
C = 50 ppm
SM99021B2E
@ 14.31818 MHz
SM99121B5E
@ 66.666 MHz
* Standard
=
=
SM990
SM991
21
21
B
B
2
5
E
E
14 .31818
66 .666
Call factory for additional options. Use full descriptive part number when ordering. Parts will be marked with series and frequency only.
Monitor Products has a proven track record as a pioneer manufacturer in the frequency control market. If our extensive selection of standard and
engineered crystals and oscillators does not meet your spec, we will work with you towards a customized solution.
Monitor Products Company Inc reserves the right to make changes to its products and product specifications without notice. No liability is assumed as a result of their use or application.
射频识别技术（Radio Frequency Identification,缩写RFID），射频识别技术是20世纪90年代开始兴起的一种自动识别技术，射频识别技术是一项利用射频信号通过空间耦合（交变磁场或电磁场）实现无接触信息传递并通过所传递的信息达到识别目的的技术。RFID应用将继续以供应物流领域为主，在这个领域用RFID收发器进行包括各种各样的可移动货物/产品的记录和跟踪，在RFID收发器...[详细]
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