LMX9820 National Semiconductor, LMX9820 Datasheet - Page 19
LMX9820
Manufacturer Part Number
LMX9820
Description
Bluetooth Serial Port Module
Manufacturer
National Semiconductor
Datasheet
1.LMX9820.pdf
(40 pages)
- Current page: 19 of 40
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Revision 1.0
8.0 Digital Smart Radio
8.13.2 TCXO (Temperature Compensated Crystal
Oscillator)
The LMX9820 also can operate with an external TCXO
(Temperature Compensated Crystal Oscillator). The TCXO
signal is directly connected to the XTL_G.
Input Impedance
The LMX9820 XTL_G pin has in input impedance of 2pF
capacitance in parallel with >400k resistance.
NKG3184A TCXO
Figure 13. Frequency Offset with 9 pF//10 pF Capacitors
(Continued)
19
The LMX9820 has also been tested with the NKG3184A
TCXO. See Table 23 on page 19.
Specification
Package
Frequency
Stability
Output Load
Current Consumption
Output Level
Storage Temperature
DC Cut Capacitor
Table 23. TCXO - NKG3184A
Value
5.0x3.2x1.4 mm - 4 pads
12.000 MHz
±18 ppm at -30 to +85°C (in-
clusive of all conditions)
10k
2.0mA
0.3Vp-p to 2.0Vp-p
-40 to +85°C
Included in VC-TCXO
// 13pF
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