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參數(shù)資料
| 型號(hào)： | LP21 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | CRYSTAL IN HC-49/S TRU-HOLE PACKAGE |
| 中文描述： | 晶體慧聰- 49 / s的超鈾孔包裝 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 57K |
| 代理商： | LP21 |
Telephone: (425) 776-1880, Fax: (425) 776-2760, e-mail: ple-sales@pletronics.com
X 2A
LP49, LP24, & LP21
CRYSTALS IN HC-49/S THRU-HOLE PACKAGE
(
LP49
: 3.5 mm high;
LP24
: 2.5 mm high;
LP21
: 2.1mm high)
STANDARD SPECIFICATIONS:
Frequency Range
Oscillation Modes
Calibration Frequency Tolerance
at 25
°
C
Frequency Stability over Operating
Temperature Range
3.180 MHz - 72.000 MHz (Consult factory for specific available frequencies)
fundamental
(AT-cut)
(BT-cut)
3.180 - 30.000 MHz
24.001 - 47.000 MHz
±
50 PPM is standard, but tighter tolerances also available for
certain frequencies.
±
50 PPM is standard, but tighter tolerances also available for certain
operating temperature ranges.
0 - 70
°
C is standard, but can be extended to -40 - +85
°
C for certain
frequencies (just add ‘E’ after model number).
10 pF -
∞
pF (
∞
pF means Series Resonance). To be specified by customer.
See table on next page.
50
μ
W is standard, but customer may specify different drive level
±
5 PPM per year
7 pF maximum
May be specified by customer in terms of frequency shift required over a
certain range of load capacitance, (e.g.+100 PPM from CL=12 to CL=18 pF)
This requirement may be expressed also in terms of motional capacitance
in fanto-Farad (fF).
Bulk (100 per bag, 2000 per box)
fundamental
3rd overtone
(AT-cut)
27.000 - 72.000 MHz
Operating Temperature Range
Load Capacitance
Equivalent Series Resistance (ESR)
Drive Level
Aging at 25
°
C
Shunt Capacitance
Pullability
Packaging
PART NUMBERING GUIDE:
n
The Pletronics part number for an LP crystal consists of the following 4 elements:
1. Model Number:
LP49, LP24, or LP21
2. Load Capacitance:
When the load required is
∞
pF, that is, the calibration is at
series resonance
:
LP49-SR, LP24-SR, or LP21-SR;
When the load required is XX pF: LP49-XX, LP24-XX, or LP21-XX.
3. Optional 3
rd
Lead from the Base (Case Grounded):
3LP49
4. Frequency of Operation in MHz
EXAMPLES: LP49-SR-10.000 MHz; LP24-18-10.000 MHz; 3LP49-20-10.000 MHz
n
When customer’s requirements are non-standard, a special engineering part number will be assigned.
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