RTL8201BL
8.3 Crystal and Transformer Specifications
8.3.1 Crystal Specifications
Item
Parameter
Range
1
2
3
4
5
Nominal Frequency
Oscillation Mode
25.000 MHz
Base wave
±50 ppm
Frequency Tolerance at 25℃
Temperature Characteristics
Operating Temperature Range
Equivalent Series Resistance
Drive Level
±50 ppm
-10℃ ~ +70℃
30 ohm Max.
0.1 mV
20 pF
7 pF Max.
Mega ohm Min./DC 100V
Saunders 250A
±0.0003%
6
7
8
Load Capacitance
Shunt Capacitance
Insulation Resistance
Test Impedance Meter
Aging Rate A Year
9
10
11
12
8.3.2 Transformer Specifications
Parameter
Transmit End
Receive End
Turn ratio
1:1 CT
1:1
Inductance (min.)
Leakage inductance
Capacitance (max)
DC resistance (max)
350 uH @ 8mA
0.05-0.15 uH
15 pF
350 uH @ 8mA
0.05-0.15 uH
15 pF
0.4 ohm
0.4 ohm
2002-03-29
Rev.1.2
27
ETC [ ETC ]
