參數(shù)資料
型號(hào): ASM-20.0000MHZ-T
廠商: ABRACON CORP
元件分類(lèi): XO, clock
英文描述: CRYSTAL OSCILLATOR, CLOCK, 20 MHz, HCMOS/TTL OUTPUT
封裝: ROHS COMPLIANT, PLASTIC, J-LEADED, SMD, 4 PIN
文件頁(yè)數(shù): 1/1頁(yè)
文件大?。?/td> 526K
代理商: ASM-20.0000MHZ-T
5.0Vdc HCMOS/TTL COMPATABLE J -LEADED PLASTIC MOLDED SURFACE MOUNT
CRYSTAL CLOCK OSCILLATORS
ASM
ASM - Frequency - Temperature - Frequency Stability - Duty Cycle - Packaging
ORDERING OPT ONS
Note 1: Option -S (Symmetry level measured at 1/2 Vdd for HCMOS, and
at 1.4 Vdc for TTL.
Note 2: Pin 1 has internal pull-up resistor which allows pin 1 to be left floating (enable high)
Connect a By-Pass capacitor 0.01 m F between Vdd and GND.
Test circuit, waveforms, see appendix B. Recommended handling, see appendix F.
Environmental and mechanical specifications, see appendix C. Group 2.
Marking, see appendix G. Tape and Reel, see appendix H.(1,000 pcs./ reel).
Application notes, see appendix, A. Reflow profile, see appendix E.
1
Tristate E/D
7
GND / Case
8
Output
14
Vdd
S
T
A
N
D
A
R
D
S
P
E
C
I
F
I
C
A
T
I
O
N
S
T
A
N
D
A
R
D
S
P
E
C
I
F
I
C
A
T
I
O
N
S
PARAMETERS
ASM
ASMT
ASMH
10TTL
10TTL (for F <_ 50 MHz) 15 pF (50pF max.)
15 pF
5TTL (for F> 50 MHz)
15 pF (30pF max.
(50 pF max.)
for F > 50 MHz)
0.9 * Vdd min.
2.4 Vdc min.
0.9 * Vdd min.
0.4 Vdc max.
0.1 * Vdd max.
Dimensions: Inches (mm)
FEATURES:
Industry standard J-leaded terminals.
Plastic molded SMD.
HCMOS and TTL compatible.
Tristate Enable / Disable.
Extended temperature -40°C to +85°C option.
Frequency Range
3.5MHz - 25 MHz
Operation Mode
Fundamental, AT
Operating Temperature
-10°C to + 60° C (See Options)
Storage Temperature
-55°C to + 125° Cance @ 25°C max. (See
Options)
Frequency Stability over Temp.
±50 ppm max. (See Options)
Equivalent Series Resistance
200 W for 3.5 MHz < F < 4.0 MHz
(ESR) Maximum
150 W for 4.0 MHz < F < 6.0 MHz
100 W for 6.0 MHz < F < 10.0 MHz
80 W for 10 MHz < F < 14.0 MHz
50 W for 14 MHz < F <_ 25 MHz
Shunt Capacitance C0
7 pF max.
Load Capacitance CL
16pF (See Option)
Drive Level
100W max.
Aging @ 25° C First Year
± 5 ppm max.
XX.XXXXX MHz
-R for ± 25ppm max.
-K for ± 30ppm max.
-H for ± 35ppm max.
-C for ± 50ppm max.
- T
(Tape & Reel)
-S for 45 /55% @ 1
/2 Vdd
-S1 for 45 /55% @ 1.4 Vdc
-D for -10°C to + 60°C
-E for -20°C to + 70°C
-F for -30°C to + 70°C
-N for -30°C to + 85°C
-L for -40°C to + 85°C
ORDERING OPTIONS
PIN
FUNCTION
NUMBER
1
Tristate E/D
2
GND / Case
3
Output
4
Vdd
PARAMETERS
SPECIFICATIONS
APPLICATIONS:
Wide range of applications in dialing communication equipment, AV / OA equipment, Measuring equipment.
STANDARD SPECIFICATIONS
14.0 x 8.95 x 4.7 mm
Frequency Range
(Fo)
1.00MHz - 70.000MHz
Operating Tempature (TOPR)
0°C to +70°C (See Options)
Storage Temperature (TSTO)
-40°C to +85°C
Frequency Stability
(DF/ Fo)
±100ppm max. (See Options)
Supply Voltage
(Vdd)
5Vdc ±10%
Input Current
(Idd)
25mA max. (F< 30MHz); 35mA max. (F> 30MHz)
Duty Cycle or Symmetry
45/55% max. for F <_ 10 MHz
40 / 60% max. for F > 10 MHz (See Options & Note 1)
Rise and Fall Times (TR / TF)
8ns max. (F < 40MHz) ; 6ns max. (F > 40MHz)
Output Load
Output Voltage
(VOH)
2.4Vdc min. (TTL)
;
0.9*Vdd min.(HCMOS)
(VOL)
0.4Vdc max. (TTL)
;
0.1*Vdd max.(HCMOS)
Start-up Time
(TOSC)
10 ms max.
Output Disable /
Enable
Disabled current
(IDIS)
28mA max
Aging
±5ppm / Year max.
10TTL max., 50pF max. (F < 50MHz); 15pF (F > 50MHz)
100 ns max. “1” or Open: Oscillation
VIH >_ 2.0V
“0”: Output disabled in high impedance (HiZ) VIL < 0.8V
29 Journey Aliso Viejo, CA 92656 USA
(949) 448-7070
FAX: (949) 448-8484
E-MAIL:
abinfo@abracon.com INTERNET ADDRESS: www.abracon.com
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
NOTE: Left blank if standard
All specifications and markings subject to change without notice
ABRACON
C O R P O R A T I O N 47
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