LMX9830SM/NOPB National Semiconductor, LMX9830SM/NOPB Datasheet - Page 21

• Manufacturer Part Number: LMX9830SM/NOPB
• Description: IC SRL PORT MOD BLUETOOTH 60FBGA
• Manufacturer: National Semiconductor

Specifications of LMX9830SM/NOPB

• Frequency: 2.4GHz
• Data Rate - Maximum: 704kbps
• Modulation Or Protocol: Bluetooth v2.0, Class 2
• Applications: PDA's, POS Terminals
• Power - Output: 0dBm
• Sensitivity: -80dBm
• Voltage - Supply: 2.5 V ~ 3.6 V
• Current - Receiving: 65mA
• Current - Transmitting: 65mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 60-FBGA
• Physical Interfaces: UART
• Data Rate: 704Kbps
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 4 - 72 Hours
• Supply Voltage Range: 1.6V To 3.6V
• Frequency Max: 2480MHz
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Frequency Min: 2402MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: *LMX9830SM; *LMX9830SM/NOPB; LMX9830SM

V
I
f
V
DDACT
DD
PPOSC
10.7.2 TCXO (Temperature Compensated Crystal
Oscillator)
The LMX9830 also can operate with an external TCXO (Tem-
perature Compensated Crystal Oscillator). The TCXO signal
is directly connected to the CLK+.
1.
10.7.3 Optional 32 kHz Oscillator
A second oscillator is provided (see Figure 8) that is tuned to
provide optimum performance and low-power consumption
while operating with a 32.768 kHz crystal. An external crystal
clock network is required between the X2_CKI clock input and
the X2_CKO clock output signals.The oscillator is built in a
Pierce configuration and uses two external capacitors. Table
20 provides the oscillator’s specifications.
Symbol
Input Impedance
The LMX9830 CLK+ pin has in input impedance of 2pF
capacitance in parallel with >400kW resistance
Supply Voltage
Supply Current (Active)
Nominal Output Frequency
Oscillating Amplitude
Duty Cycle
FIGURE 7. Frequency Offset with 10 pF//10 pF Capacitors
Parameter
TABLE 20. 32.768 kHz Oscillator Specifications
21
Condition
In case the 32kHz is not used, it is recommended to leave
X2_CKO open and connect X2_CKI to GND.
FIGURE 8. 32.768 kHz Oscillator
1.62
Min
40
32.768
Typ
1.8
1.8
2
Max
1.98
60
20180015
20180016
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Unit
kHz
µA
%
V
V