SN32F100 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 47
Version 1.9
The resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize
output distortion and startup stabilization time. The loading capacitance values must be adjusted according to the
selected oscillator.
The EHS crystal is switched on and off using the EHSEN bit in
Analog Block Control register (SYS0_ANBCTRL)
3.2.3.3
Audio External High-speed (AUEHS) Clock
Note: Connect the Crystal/Ceramic and C as near as possible to the AUXTALIN/AUXTALOUT/VSS pins of
MCU.
Structure:
1MHz~25MHz AUEHS external crystal/ceramic resonator
Main Purpose:
Audio high clock source.
Warm-up Time:
2048*F
AUEHS
AUXTALIN/AUXTALOUT Shared Pin Selection:
Oscillator Mode
AUXTALIN pin
AUXTALOUT pin
--
GPIO
GPIO
AU
EHS X’TAL
Crystal/Ceramic
Crystal/Ceramic
The resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize
output distortion and startup stabilization time. The loading capacitance values must be adjusted according to the
selected oscillator.
The AUEHS crystal is switched on and off using the AUEHSEN bit in
Analog Block Control register (SYS0_ANBCTRL)
3.2.3.4
External Low-speed (ELS) Clock
The low-speed oscillator can use 32768 crystal oscillator circuit.
3.2.3.5
CRYSTAL
Crystal devices are driven by LXIN, LXOUT pins. The 32768 crystal and 10pF capacitor must be as near as possible to
MCU. The ELS crystal is switched on and off using the ELSEN bit in
Analog Block Control register (SYS0_ANBCTRL)
Содержание SN32F107
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