ml70512 Oki Semiconductor, ml70512 Datasheet - Page 22

• Manufacturer Part Number: ml70512
• Description: Bluetooth Baseband Controller Ic
• Manufacturer: Oki Semiconductor

REFERENCE FOR OSCILLATOR CIUCUIT
Note 1: The values of C0 and C1, and R0 and R1 should be determined according to the specifications for the
Note 2: The crystal oscillator circuit should be connected to pins SCLKP and SCLKN only when the OKI RF-LSI
Note 3: In the case of 12 MHz, 13 MHz, or 16 MHz system clock (SCLKP) input, make sure the crystal frequency
Note 4: Precautions to build a crystal oscillator circuit
The circuit is subject to change according to the specific LSI board design. Please contact Oki Electric Industry Co.,
Ltd. for detailed information. It is recommended to determine the final circuit values including the capacitance of
the circuit board designed by the user.
OKI Semiconductor
In the case of 32 kHz or 32.768 kHz sub-clock (XC32KP) input, make sure the crystal frequency tolerance
is ±250 ppm for temperature, supply voltage, and aging.
- Keep length of wire traces as short as possible.
- Do not cross the crystal oscillator circuit wires over other signal line wires.
- Do not keep signal line wires through which high current flows close to the crystal oscillator circuit.
- Keep the grounding point of the capacitors in the oscillator circuit at the potential equal to GND. And do
- Do not output signals from the oscillator circuit.
external crystal X’tal 1 (32 or 32.768 kHz).
(ML7050) is connected. In other cases, the system clock should be input from the RF-LSI to pin SCLKP.
tolerance is ±20 ppm for temperature, supply voltage, and aging.
The values of C2 and C3, and R2 and R3 should be determined according to the specifications for the
external crystal X’tal 2 (12, 13, or 16 MHz).
not connect the capacitors to the GND or GND lines through which high current flows.
C0
X’tal 1
R0
Example of oscillator circuit
R1
C1
ML70512
C2
X’tal 2
Connect this oscillator circuit only when
connecting the OKI RF-LSI ML7050.
R2
R3
C3
FEDL70512-04
ML70512
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